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| 1 | 桉树最佳施锌量及施镁量探索显示文摘运用砂培法及指数施肥法进行桉树最佳施锌量及施镁量探索,两种元素各设置3个浓度梯度,1个对照,3次重复。试验表明,桉树施锌量4 mg/株在株高上表现最好,2 mg/株处理在地径上为最适施用量;而桉树用镁量7 mg/株处理在株高上最好,10 mg/株处理则在地径上表现最好。综合农户成本及获得利润来看,用锌2 mg/株和用镁7 mg/株为最佳施用量。 | 林婷 黄文善 | 2020 | 南方农业2020，14，12： | 0 |
| 2 | Partial Relief of Drought-Stressed Fennel(Foeniculum vulgare Mill.) in Response to Foliar-Applied Zinc显示文摘Few attempts have been made to explore the effect of Zn fertilization on the performance of medicinal plants in general and fennel in particular, under adverse conditions. This study was conducted to examine the efficacy of zinc (Zn) in correcting physiological responses of fennel to water deficit. Twelve field-grown fennel genotypes were subjected to two levels of irrigation (irrigation after 25%–35% and 75%–85% depletion of available soil water) and two levels of foliar-applied Zn (0 and 4 g kg −1 ). Water deprivation had significant effects on all characteristics;i.e., in contrast to seed essential oil concentration, harvest index, and superoxide dismutase (SOD) and catalase activities, it led to decreases in the rest of the attributes. Varietal differences in response to drought were meaningful for most of the traits. Genotypic variations for dry mass and seed yield were consistent with differences among the genotypes in leaf water potential, relative water content, proline concentration, and chlorophyll concentrations. Zinc led to significant increases in all physiological attributes, including activation of antioxidant defense responses manifested in ascorbate peroxidase and SOD activities and carotenoid concentration. The Zn-effect tended to be more notable in drought-stricken fennel plants in a majority of the traits. Based on our findings, Zn could be considered an effective micronutrient for ameliorating, at least in part, the stressful effects of water deficit on fennel. | Ahmad RAJABI Parviz EHSANZADEH Jamshid RAZMJOO | 2019 | Pedosphere2019，29，6： | 0 |
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