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| 1 | Use of Controlled Release Fertilizer for Increasing N Efficiency of Direct Seeding Rice显示文摘Field trials on a silt-loamy paddy soil derived from shallow-sea deposit in direct seeding rice fields were conducted in Zhejiang, China, in 1996 to compare N efficiency of controlled release fertilizers (LP fertilizers) with the conventional urea. Six treatments including CK (no N fertilizer), conventional urea and different types of LP fertilizers at different rates were designed for two succeeding crops of early and late rice. A blend of different types of LP fertilizers as a single preplant 'co-situs' application released N in a rate and amount synchronizing with uptake pattern of direct seeding rice. A single preplant application of the LP fertilizers could meet the N requirement of rice for the whole growth period without need of topdressing. Using LP fertilizer blends, equivalent grain yields could be maintained even if the N fertilization rates were reduced by 25%~50% compared with the conventional urea. Agronomic efficiency of the LP fertilizers was 13.6%~ 86.4% higher than that of the conventional urea in early rice and 100%~164.1% in late rice, depending on the amounts of the LP fertilizers applied. N fertilizer recovery rate increased from 27.4% for the conventional application of urea to 41.7%~54.l% for the single preplant 'co-situs' application of the LP fertilizers. Use of the LP fertilizers was promising if the increase in production costs due to the high LP fertilizer prices could be compensated by increase in yield and N efficiency, reduction in labor costs and improvement in environment. | FU JIANRONG, ZHU YUANHONG and JIANG LINA Institute of Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 (China) | 2001 | Pedosphere2001，11，4： | 27 |
| 2 | Changes in cropland topsoil organic carbon with different fertilizations under long-term agro-ecosystem experiments across China's Mainland显示文摘Topsoil soil organic carbon(SOC) data were collected from long-term Chinese agro-ecosystem experiments presented in 76 reports with measurements over 1977 and 2006.The data set comprised 481 observations(135 rice paddies and 346 dry croplands) of SOC under different fertilization schemes at 70 experimental sites(28 rice paddies and 42 dry croplands).The data set covered 16 dominant soil types found in croplands across 23 provinces of China's Mainland.The fertilization schemes were grouped into six categories:N(inorganic nitrogen fertilizer only),NP(compound inorganic nitrogen and phosphorus fertilizers),NPK(compound inorganic nitrogen,phosphorus and potassium fertilizers),O(organic fertilizers only),OF(combined inorganic/organic fertilization) and Others(other unbalanced fertilizations such as P only,K only,P plus K and N plus K).Relative change in SOC content was analyzed,and rice paddies and dry croplands soils were compared.There was an overall temporal increase in topsoil SOC content,and relative annual change(RAC,g kg-1 yr-1) ranged -0.14-0.60(0.13 on average) for dry cropland soils and -0.12-0.70(0.19 on average) for rice paddies.SOC content increase was higher in rice paddies than in dry croplands.SOC increased across experimental sites,but was higher under organic fertilization and combined organic/inorganic fertilizations than chemical fertilizations.SOC increase was higher under balanced chemical fertilizations with compound N,P and K fertilizers than unbalanced fertilizations such as N only,N plus P,and N plus K.The effects of specific rational fertilizations on SOC increase persisted for 15 years in dry croplands and 20 years in rice paddies,although RAC values decreased generally as the experiment duration increased.Therefore,the extension of rational fertilization in China's croplands may offer a technical option to enhance C sequestration potential and to sustain long-term crop productivity. | WANG ChengJi1,PAN GenXing1*,TIAN YouGuo2,LI LianQing1,ZHANG XuHui1 & HAN XiaoJun1 1Institute of Resources,Ecosystem and Environment of Agriculture,Nanjing Agricultural University,Nanjing 210095,China 2Center of Soil and Fertilizer Quality Monitoring and Test,Agricultural Ministry of China,Beijing 100026,China | 2010 | Science China(Life Sciences)2010，53，7： | 24 |
| 3 | A 60-year journey of mycorrhizal research in China:Past,present and future directions显示文摘The significance of mycorrhizas(fungal roots in 90% of land plants) in plant nutrient acquisition and growth,element biogeo-chemical cycling and maintaining of terrestrial ecosystem structures has been globally established for more than 120 years.Great progress in mycorrhizal research in the past 60 years(1950-2009,1981-2009 in particular) has also been made across China,particularly in the mainland,Hong Kong and Taiwan.For instance,a total of 20 new and ~120 records of arbuscular mycorrhizal(AM) fungal species,30 new and ~800 records of ectomycorrhizal(EM) fungal species,a dozen of new and ~100 records of orchid mycorrhizal(OM) fungal species have been isolated by morphological observation and/or molecular identification in China since the 1950s.Great accomplishment has also been made in the following area,including fungal species richness and genetic structure,relationships between species composition and plant taxa,effects of mycorrhizal fungi on plant nutrient uptake and growth,resistances to pathogens and interactions with other soil microorganisms,potential of mycorrhizal fungi in phytoremediation and/or land reclamation,alterations of enzymatic activities in mycorrhizal plants,and elevated CO2 and O3 on root colonization and species diversity.Unfortunately,the international community cannot easily appreciate almost all Chinese mycorrhizal studies since the vast majority of them have been published in Chinese and/or in China-based journals.The aim of this review is to make a comprehensive exposure of the past and present China's major mycorrhizal research to the whole world,and then to suggest potential directions for the enhancement of future mycorrhizal research within and/or between the Chinese and international mycorrhizal community. | HE XinHua1,2,3*,DUAN YingHua2,CHEN YingLong4 & XU MingGang2 1School of Life Sciences,Yunnan Normal University,Kunming 650092,China 2Key Laboratory of Crop Nutrition and Fertilization,Ministry of Agriculture of China,Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China 3Centre for Ecosystem Management,School of Natural Resources,Edith Cowan University,Joondalup,WA 6027 State Centre of Excellence for Ecohydrology,School of Plant Biology,University of Western Australia,Crawley,WA 6009,Australia 4School of Earth and Environment,University of Western Australia,Crawley,WA 6009,Australia | 2010 | Science China(Life Sciences)2010，53，12： | 23 |
| 4 | Effects of Film-Degraded Rice Controlled Release Fertilizer on the Nitrogen Uptake and Yield of the Hybrid Rice显示文摘Field experiment was carried out to nitrogen release characteristics of rice controlled release fertilizer (RCRF) coated with natural and half natural high molecular materials, and to thereof effects on the nitrogen uptake and yield of early and late hybrid rice from 1999 to 2000, with urea as control.In experimental fields regardless of early and late seasons, the amount of N in the plants increased exponentially at the early growth stage (y=abx) and nonlinearly at the middle and late growth stages (y=a+bx+cx2).Rice controlled release fertilizer lengthened the exponential phase and increased the parameter -b/c during the nonlinear phase. Although the N amount of plants was less in rice controlled release fertilizer plots than in urea plots within 20 days after transplanting, at the heading and maturity stages, the N amount of plants in rice controlled release fertilizer plots was above two times greater than in the urea plots due to the higher N recovery, and the high absorption density of N in the nonlinear phase. Tillers pattern and achievement of the maximum tillering stage varied with fertilizer types. The maximum tillering stage in the urea plots occurred a week earlier than in the rice controlled release fertilizer plots. Yield sink size and potential sink size of the plants reflected the N absorption pattern and the amount of N in the plants. The yields of early and late rice with 90 kg N ha-1of rice controlled release fertilizer were respectively increased by 832.7 kg ha-1 and 412.8 kg ha-1 than those with 90 kg N ha-1 of urea, almost equivalent to the yield of early and late hybrid rice with 180 kg N ha-1 of urea. | Zheng Shengxian, Nie Jun, Xiao Jian, Xiong Jinying, and Yi Guoying Hunan Soil and Fertilizer Institute, Changsha 410125, China | 2002 | Hunan Agricultural Science & Technology Newsletter2002，3，2： | 12 |
| 5 | Contributions of Different N Sources to Crop N Nutrition in a Chinese Rice Field显示文摘N availability is one of the most important factors limiting crop yield enhancement.The recovery of applications of 15 N-labeled fertilizer and crop residues in a rice-wheat cropping system was determined for up to 6 consecutive growing seasons.The crop residues from the previous season were either incorporated or removed as two different treatments.Our results showed that 16.55%-17.79% (17.17% on average) of the fertilizer N was recovered in the crop during the first growing season,suggesting that more than 80% of crop N was not directly from the N fertilizer.When 15 N-labeled residues were applied,12.01% was recovered in the crop in the first growing season.The average recoveries of fertilizer N and crop residue N in the soil after the first growing season were 33.46% and 85.64%,respectively.N from soil organic matter contributed approximately 83% of the N in the crop when 15 N fertilizer was applied or 88% when crop residues were applied.There was a larger difference in the total 15 N recovery in plant and soil between N applications in the forms of fertilizer and crop residues.Incorporation of crop residues following the 15 N fertilizer application did not significantly promote 15 N recovery in the crop or soil.On average,only additional 1.94% of N for the fertilizer-applied field or 5.97% of N for the crop residue-applied field was recovered by the crops during the 2nd and 3rd growing seasons.The total recoveries of 15 N in crop and soil were approximately 64.38% for the fertilizer-applied field after 6 growing seasons and 79.11% for the crop residue-applied field after 5 growing seasons.Although fertilizer N appeared to be more readily available to crops than crop residue N,crop residue N replenished soil N pool,especially N from soil organic matter,much more than fertilizer N.Therefore,crop residue N was a better source for sustaining soil organic matter.Our results suggested that the long-term effect of fertilizer or crop residues on N recovery were different in the crop and soil.However,there was little difference between the practices of crop residue incorporation and residue removal following the N fertilizer application. | CHEN Yi,TANG Xu,YANG Sheng-Mao,WU Chun-Yan and WANG Jia-Yu Institute of Environmental Resources and Soil Fertilizer,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021 (China) | 2010 | Pedosphere2010，20，2： | 11 |
| 6 | Effects of Root Penetration Restriction on Growth and Mn Nutrition of Different Winter Wheat Genotypes in Paddy Soils显示文摘 | LU Shi-hua, ZENG Xiang-zhong, LIU Xue-jun and ZHANG Fu-suo( Soil and Fertilizer Institute , Sichuan Academy of Agricultural Sciences , Chengdu 610066 , P.R.China Departmentof Plant Nutrition , Key Laboratory of Plant Nutrition , Ministry of Agriculture , Key Laboratory of Plant-SoilInteractions, Ministry of Education , China Agricultural University, Beijing 100094 , P.R.China) | 2002 | Agricultural Sciences in China2002，1，6： | 11 |
| 7 | Distribution of Crystal Organic Fertilizer-N in Soil-plant System显示文摘The distribution of crystal organic fertilizer, urea and compound fertilizer-N in soil and plant system was researched with 15N-trace under tobacco pot experiment. The results showed that the leaf yield of tobacco used crystal organic fertilizer was 23.1% and 14.6 % higher than that of urea and compound fertilizer treatments respectively. Compound fertilizer also resulted in higher yield of 8.5% comparing with the urea treatment. Nitrogen content of the plant from the crystal organic fertilizer treatment was 138.6% and 145.7% as high as that of the compound fertilizer and urea treatments respectively. The absorbed N from the organic fertilizer was 25.1% and 27.9% more than that from the compound fertilizer and urea respectively.However, the absorbed N from the soil with the organic fertilizer was 47.4% and 58.3% more than that with compound fertilizer and urea respectively. The N use efficiency of the organic fertilizer was 9.4% and 10.1%higher than that of the compound fertilizer and urea. It indicated that the crystal organic fertilizer not only had high N use efficiency, but also stimulated tobacco taking up more N from soil. | LIU Yi-xin, HAN Yi-wang, WANG Yan-ting, HONG Li-fang XU Xi-min,TANG Shen, LIN Guan-ya and LIU Wu-ding(Department of Environmental Science , Institute of Earth and Space , University of Science and Technology of China , Hefei 230026 , P. R . China Department of Tobacco Science , University of Science and Technology of China , Hefei 230052 , P. R . China Department of Science , Technology and Education of Tobacco Monopoly Administration of China , Beijing 100052 , P. R . China Institute of Soil and Fertilizer , Yunnan Academy of Agricultural science , Kunmin 650231 , P. R . China Sanmin Tobacco Branch Company of Fujians , Sanmin 365010 , P. R . China Yongzhou Tobacco Branch Company of Hunan , Yongzhou 425000 , P. R . China Sinan Tobacco Company of Guizhou , Sinan 565100 , P. R . China Department of Resources , Environment and Agrochemistry , Huazhong Agricultural University, Wuhan 430070 , P.R.China) | 2002 | Agricultural Sciences in China2002，1，9： | 8 |
| 8 | Fate of Nitrogen from Organic and Inorganic Sources in Rice-Wheat Rotation Cropping System显示文摘The lower availability of N is one of the most important limiting factors impeding crop yield enhancement among the various factors that affect crop yield under the multiple-cropping agroecosystem in China.In this study,the recovery of a single application of 15N-labeled fertilizer or residues in rice-wheat cropping system was determined,in order to provide theoretical foundation for the nitrogen management in sustainable agricultural production.A continuous trace experiment was conducted for 15N microplots by using randomized block design with four treatments and four replications(T1 = 15N-labeled fertilizer with crop residue incorporation,T2 = 15N-labeled residues,T3 = 14N fertilizer to generate unlabeled crop residue,and T4 = 15Nlabeled fertilizer without crop residue incorporation).Our results showed that,on average,17.17 and 12.01% of crop N was derived from N fertilizer and 15N-labeled residues,respectively during the first growing season,suggesting that approximately 82.83 or 87.99% of crop N was derived directly from soil N pool.There was a larger difference in the 15N recovery pattern in crop when N was applied as fertilizer or residues,i.e.,most of crop N derived from N fertilizer was absorbed in the first growing season(92.04%),and the relevant value was 38.03% when 15N-labeled residues were applied.This implied that most of N fertilizer was recovered in the present cropping season,while a longer residue effect will be found for 15N-labeled residues.Thus,the average recovery of N fertilizer and N residue in the soil after the first growing season was 33.46 and 85.64%,respectively.The recovery of applied N in soil when N was applied as residues was significantly higher than that when N was applied as fertilizer.There was a larger difference in the total 15N recovery in plant and soil when N was applied as fertilizer or residues.By the end of the fifth or sixth cropping season,the total 15N recovery in plant and soil when N was applied as fertilizer or residues were estimated at 64.38 and 79.11%,respectively.On the contrary,there was little difference between the practices of residue incorporation and residue removal following the N fertilizer application.N fertilizer appeared to be more readily available to crops than residue-N,and residue-N replenished soil N pool,especially N in soil organic matter,much more than N fertilizer after six growing seasons.Therefore,residue-N is a better source for sustaining N content of soil organic matter.Thus,one possible management practice is to use both organic and inorganic N sources simultaneously to improve the use efficiency of N while protecting the sustainability of soil. | CHEN Yi,WU Chun-yan,TANG Xu,YANG Sheng-mao and WANG Jia-yu Institute of Environmental Resources and Soil Fertilizer,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,P.R.China | 2010 | Agricultural Sciences in China2010，9，7： | 5 |
| 9 | Nitrification-denitrification Loss and N2O Emission from Urea Applied to Crop-soil Systems in North China Plain显示文摘Nitrogen losses are not only important for agriculture but environment as well. Field experiments were set up in summer corn field at Fengqiu Agro-Ecological Experimental Station of CAS in North China Plain. The soil was in maize-chao soil. Nitrification-denitrification losses and N2O emission were determined by acetylene-inhibition soil-core incubation method in the soils applied urea. The results showed that urea was fast hydrolyzed and became to nitrate. The soil with non urea released 0.33kg N/ha N2O.However, the soil produced 2.91kg N/ha N2O, about 1.94% of the applied N, when the urea was spread on soil surface. N2O emission reduced to 2.50kg N/ha, about 1.67% of the applied N, when the urea was put in deep soil by digging a hole. The denitrification loss was 1.17kg N/ha in control soil. It increased to 3.00kg N/ha and 2.09kg N/ha, which were 2.00% and 1.39% of the used N, in the soils received urea on surface and sub-surface respectively. It was suggested that nitrification-denitrification was probably not a main way of fertilizer nitrogen loss in this region. | DING Hong, CAI Gui-xin, WANG Yue-si and CHEN De-li( Institute of Soil and Fertilizer , Fujian Academy of Agricultural Sciences , Fuzhou 350013 Institute of Soil Science, CAS, Nanjing 210008 LAPC , Institute of Atmospheric Physics, CAS, Beijing 100029 Institute of Food and Land Resources, Univ Melbourne , PV 3052 , Australia ) | 2002 | Agricultural Sciences in China2002，1，2： | 4 |
| 10 | Effect of strontium substitution on the activity of La_(2-x)Sr_xNiO_4(x=0.0-1.2)in NO decomposition显示文摘The aim of this work is to study the effect of Sr substitution on the redox properties and catalytic ac- tivity of La2-xSrxNiO4(x=0.0-1.2)for NO decomposition.Results suggest that the x=0.6 sample shows the highest activity.The characterization(TPD,TPR,etc.)of samples indicates that the x=0.6 sample possesses suitable abilities in both oxidation and reduction,which facilitates the proceeding of oxygen desorption and NO adsorption.At temperature below 700℃,the oxygen desorption is difficult, and is the rate-determining step of NO decomposition.With the increase of reaction temperature(T> 700℃),the oxygen desorption is favorable and,the active adsorption of NO on the active site(NO+Vo+ Ni2+→NO^--Ni3+)turns out to be the rate-determining step.The existence of oxygen vacancy is the prerequisite condition for NO decomposition,but its quantity does not relate much to the activity. | ZHU JunJiang 1 ,YANG XiangGuang 2 ,XU XueLian 3 &WEI KeMei 1 1 National Research Center of Chemical Fertilizer Catalysts,Fuzhou University,Fuzhou 350002,China 2 Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China 3College of Chemistry&Chemical Engineering,Fuzhou University,Fuzhou 350002,China | 2007 | Science China Chemistry2007，50，1： | 4 |
| 11 | Long-Term Impact of Soil Management on Microbial Biomass C, N and P in Rice-Based Cropping System显示文摘A 12-year field experiment was conducted to investigate the effect of different tillage methods and fertil- ization systems on microbial biomass C, N and P of a gray fluvo-aguic soil in rice-based cropping system. Five fertilization treatments were designed under conventional tillage (CT) or no tillage (NT) system: no fertilizer (CK); chemical fertilizer only (CF); combining chemical fertilizer with pig manure (PM); combining chemical fertilizer with crop straw (CS) and fallow (F). The results showed that biomass C, N and P were enriched in the surface layer of no-tilled soil, whereas they distributed relatively evenly in the tilled soil, which might result from enrichment of crop residue, organic manure and mineral fertilizer, and surficial development of root systems under NT. Under the cultivation system, NT had slightly greater biomass C, N and P at 0~5 cm depth, significantly less biomass C, N and P at 5~15 cm depth, less microbial biomass C, N and equivalent biomass P at 15 ~30 cm depth as compared to CT, indicating that tillage was beneficial for the multiplica tion of organisms in the plowed layer of soil. Under the fallow system, biomass C, N and P in the surface layer were significantly greater for NT than CT while their differences between the two tillage methods were negligible in the deeper layers. In the surface layer, biomass C, N and P in the soils amended with organic manure combined with mineral fertilizers were significantly greater than those of the treatments only with mineral fertilizers and the control. Soils without fertilizer had the least biomass nutrient contents among the five fertilization treatments. Obviously, the long-term application of organic manure could maintain the higher activity of microorganisms in soils. The amounts of biomass C, N and P in the fallowed soils varied with the tillage methods; they were much greater under NT than under CT, especially in the surface layer, suggesting that the frequent plowing could decrease the content of organic matter in the surface layer of the fallowed soil. | GAO YAJUN, HUANG DONGMAI, ZHU PEILI, WANG ZHIMING and LI SHENGXIU Soil and Fertilizer Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014 (China) College of Resources and Environment, Northwestern Science and Technology University of Agric | 2001 | Pedosphere2001，11，4： | 4 |
| 12 | Effect of Activated Carbon as a Support on Metal Dispersion and Activity ofRuthenium Catalyst for Ammonia Synthesis显示文摘Ten kinds of activated carbon from different raw materials were used as supports to prepare ruthenium catalysts. N2 physisorption and CO chemisorption were carried out to investigate the pore size distribution and the ruthenium dispersion of the catalysts. It was found that the Ru dispersion of the catalyst was closely related to not only the texture of carbon support but also the purity of activated carbon. The activities of a series of the carbon-supported barium-promoted Ru catalysts for ammonia synthesis were measured at 425 ℃, 10 0 MPa and 10 000 h -1. The result shows that the same raw material activated carbon, with a high purity, high surface area, large pore volume and reasonable pore size distribution might disperse ruthenium and promoter sufficiently, which activated carbon as support, could be used to manufacture ruthenium catalyst with a high activity for ammonia synthesis. The different raw material activated carbon as the support would greatly influence the catalytic properties of the ruthenium catalyst for ammonia synthesis. For example, with coconut shell carbon(AC1) as the support, the ammonia concentration in the effluent was 13 17% over 4%Ru-BaO/AC1 catalyst, while with the desulfurized coal carbon(AC10) as the support, that in the effluent was only 1 37% over 4%Ru-BaO/AC10 catalyst. | ZHENG Xiao-ling, ZHANG Shu-juan, LIN Jian-xin, XU Jiao-xing, FU Wu-jun and WEI Ke-mei **National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University,Fuzhou 350002, P. R. China | 2002 | Chemical Research in Chinese Universities2002，18，4： | 3 |
| 13 | Use of Azotobacter sp.as an indicator to detect the toxicity of heavy metals in soils显示文摘A physiological strain of microorganism - Azotobacter sp. has been adopted as an indicator to detect the toxicity of heavy metals in soils. The concentration of heavy metals to which Azotobacter sp. was behaving initially to have the resistance to heavy metals is defined as the critical poisoning concentration. The method of physiological threshold adopted can have a quantitative determination with reproducible results. The determined critical poisoning concentration is basically consistent with the results of heavy metals and arsenic toxicities to the bacteria reported recently in literatures. Total 9 typical soils, including 6 zonal soils and 3 purple soils, in the whole country were determined for the toxicities of 5 heavy metals and arsenic to Azotobacter sp. that resulted in 48 critical poisoning concentrations. | Liao Ruizhang, Shen Qiuqin, Jin Lizhi, Shen Shuling, Qian Houyin and Guan ZhenshengInstitute of Soils and Fertilizers,Chinese Academy of Agricultural Sciences,Beijing,China | 1990 | Journal of Environmental Sciences1990，2，3： | 2 |
| 14 | Geochemical records of carbon in recent sediments of Erhai Lake, China: Implication of effects of the Himalayas uplift on global environmental changes显示文摘THE formation and uplift of the Himalayas and the Tibetan Plateau may have been responsible for the past150 Ma global environmental changes, resulting in the development of a three-tiered landform in southernChina. The Yunnan-Guizhou Plateau, as the middle tier in eastern slope of the Himalayas, has beencomplex environmental unit with great altitude gradients and plateau landform characters. Both monsoonsfrom the Pacific and the Indian resulting in apparent environmental changes on variable time scales influence it. Environmental geochemical effect of low latitude-high altitude could be yielded, and well recorded in the geological bodies in this region. To build and verify a quantitative model of environmental evolution it is necessary to obtain high-resolution data of elemental cycles and mass equilibrium. | WAN Guojiang~1, BAI Zhanguo~(1,2), WANG Haoran~1 and HUANG Ronggui~1 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 2. State Key Laboratory of Plant Nutrition Research of Chinese Ministry of Agriculture, Institute of Soil and Fertilizer, Chinese Academy of Agricultural Sciences, Beijing 100081, China | 1999 | Chinese Science Bulletin1999，44，S2： | 2 |
| 15 | 晋华炉气化技术工业装置运行总结显示文摘通过对晋华炉装置工艺流程、技术特点、开车情况、运行情况的描述,指出晋华炉装置运行后有非常明显的经济效益、社会效益。 | Shanxi Yangmei Fengxi Fertilizer Industry(Group)Co.,Ltd. | 2016 | 氮肥技术2016，37，6： | 2 |
| 16 | 绿肥在现代农业中的地位──论广东绿肥的发展前景显示文摘绿肥可以解决有机肥源不足的困难,减少化肥用量,节省成本和能源消耗,改善土壤环境,提高土壤肥力和地力;提高作物产量和产品质量;促进畜牧业的发展。本文根据广东的实际,指出广东的现代化农业需要大种绿肥,也可以大种绿肥。要使广东的绿肥生产得到恢复和发展,必须抓好如下的措施:从战略高度来认识绿肥的重要性;加强领导,把它提到重要的议事日程上来;广泛开展试验示范,并加强宣传发动;增加经济投入,省、市、县各级要设立绿肥种子繁育和经营风险金。 | Guangdong General Station for Soil and Fertilizer(Agricultural Department of Guangdong Province, Guangzhou 510500) | 1994 | 热带亚热带土壤科学1994，3，1： | 2 |
| 17 | Impact of Seasalt Deposition on Acid Soils in Maritime Regions显示文摘The characteristics of seasalt deposition and its impact on acid soils in maritime regions are reviewed. It is pointed out that studies involving the impact of seasalt deposition on acid soils have been concentrated on short-term effects on soil and water acidification. A deep consideration of long-term effects on soil acidification in maritime regions is still needed. | ZHANG Zhen-HuaInstitute of Soil and Fertilizer, Jiangsu Academy of Agricultural Sciences, Nanjing 210014 (China), | 2003 | Pedosphere2003，13，4： | 2 |
| 18 | Revised American Fertility Society Classification of endometriosis: 1985显示文摘 | American Fertility Society | 1985 | Fertil Steril1985，43，： | 1 |
| 19 | Within-farm variability in resource allocation, nutrient flows and soil fertility status 显示文摘 | Tittonell P Vanlauwe B Leffelaar P A Exploring diversity in soil fertility management of smallholder farms in western Kenya Ⅱ | 2005 | Agric Ecosyst Environ2005，110，324： | 1 |
| 20 | Revised American Fertility Society classification of endometriosis显示文摘 | | 1985 | Fertil Steril1985，43，1： | 1 |
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