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1设施农业中存在的土壤障碍及其对策研究进展显示文摘本文综述了我国设施农业栽培中存在的土壤障害问题及其对策的研究进展。根据我国各地研究报道,设施栽种土壤存在的主要障碍是某些理化性状和生物学环境恶化、连作障碍明显。为此前人研究提出了解决设施农业中土壤障碍问题的主要对策,包括合理轮作、合理施肥、防治次生盐渍化、土壤消毒和选用抗性品种等。同时讨论了设施土壤质量的评价指标,并分析提出了今后设施农业土壤需进一步研究的问题。何文寿 2004土壤2004,36,3:139
2Plant Phosphorus Uptake in a Soybean-Citrus Intercropping System in the Red Soil Hilly Region of South China显示文摘A field microplot experiment was conducted in the red soil hilly region of South China to evaluate plant phosphorus (P)uptake under soybean and citrus monoculture and the soybean-citrus intercropping system using the 32P tracer technique.P fertilizer was applied at three depths(15,35,and 55 cm).The experimental results showed that the planting pattern and 32P application depth significantly affected the characteristics of P uptake by soybean and citrus.Under the soybean-citrus intercropping system,considerable competition was observed when the 32P fertilizer was applied to the topsoil(15 cm);therefore,the 32P recovery rate declined by 41.5%and 14.7%for soybean and citrus,and 32P supplying amount of topsoil to soybean and citrus decreased by 346.8 and 148.1 mg plot-1,respectively,compared to those under the monoculture.However,32P recovery of soybean was promoted when 32P fertilizer was applied to the deeper soil layers (35 and 55 cm)under soybean-citrus intercropping.Under the soybean monoculture,32P fertilizer could hardly be used by soybean when 32P fertilizer was applied at the 55 cm depth or below,with the recovery rate being less than 0.1%;it was up to 0.253%by soybean under intercropping.The higher P recovery of soybean under soybean-citrus intercropping when P was applied in the deeper soil layers was because part of the P nutrient that the citrus absorbed from the deeper soil layers could be released into the topsoil and then it could be used by the soybean.ZHOU Wei-Jun ZHANG Yang-Zhu WANG Kai-Rong LI He-Song HAO Yin-Ju LIU Xin 2009Pedosphere2009,19,2:7
3设施土壤的障碍因子及其对策研究进展显示文摘本文综述了我国设施土壤中存在的障碍因子及其对策的研究发展。根据我国各地研究报道,对设施土壤的物理状况、化学状况及微生物状况作一介绍和总结,旨在为设施土壤的施肥、改良和生产提供依据。并总结了前人研究提出的解决设施土壤障碍问题的主要对策,包括合理施肥、合理轮作、灌水洗盐等。最后提出了今后设施土壤有待进一步研究的问题。孟飞琴 王洁琼 2015环境研究与监测2015,28,1:5
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