Zhang suiqi,Li Yangyang.Study on Effects of Fertilizing on Crop Yield and Its Mechanism to Raise Water Use Efficiency[J].Research of Soil and Water Conservation,1996,3(01):185-191.
施肥促进作物水分利用机理及对产量影响的研究
- Title:
- Study on Effects of Fertilizing on Crop Yield and Its Mechanism to Raise Water Use Efficiency
- Keywords:
- fertilizing; yield; water use efficiency; improvement
- 摘要:
- 在田间及盆栽试验条件下，以小麦为主要实验材料，研究了干旱下无机营养与作物产量、生长、水分利用效率及抗旱性的关系.结果表明：旱地施肥明显提高了作物产量和水分利用效率，但干旱程度明显影响了肥效的发挥；不同营养元素对作物抗旱性的影响并不相同，氮、钾营养主要通过增强作物的渗透调节和气孔调节改善作物的抗旱性，而磷营养则明显改善了作物抗旱性.最后，从作物水分关系、气孔反应、渗透调节、地上地下关系等方面对施肥提高作物产量、水分利用效率和改善抗旱性的原因进行了分析.
- Abstract:
- The relationship between fertilizing and yield,growth,water use efficiency and drought-resistance of wheat were studied under field and pot conditions.The result indicated that crop yield and water use efficiency were obviously raised by fertilizing,but the benefits offertilizing was affected by drought extent;the effects of different nutrition element on crop drought-resistance were varied,nitrogen and potassium nutrition can increase crop adaptation to drought by the strengthen of osmotic adjustment and stomtal adjustment,butphosphorus nutrition cart remarkably improve drought-resistance.In finally, the reason that fertilizing improve crop drought-resistance and raise crop yield and, water use efficiency were discussed from crop water relationship, stomatal responses,osmotic adjustment,relation between shoot and root.
参考文献/References:
[1] 徐萌, 山仑.无机营养对春小麦抗旱适应性的影响.植物生态学与地植物学学报, 1991. 79-87
[2] 张岁岐, 山仑.氮素营养对春小麦抗旱适应性及水分利用的影响.水土保持研究, 1995, 31-35
[3] 梁银丽, 陈培元.土壤水分和磷营养对小麦根系生长生理特性的影响.西北植物学报, 1994, 14(5)56-60
[4] 李秧秧.钾营养对玉米抗旱住哟影响.华北农学报, 1993, 8(4), 94-98
[5] 李秧秧, 上官周平, 陈培元.快速干早下钾对玉米叶片光合作用的影响.西北农业学报, 1993. 2(3)48-52
[6] 上官周平, 李英, 陈培元等.氮肥和底墒对小麦同化产物累积与运转的调节效应模型.西北农业学报, 1994, 3(2)63-68
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备注/Memo
收稿日期:1995-11-10;改回日期:。