干旱条件下施肥效应及其作用机理

基金项目: 河北省科委农业省校合作基金项目(98Z1305)资助

Effects and mechanism of fertilization under drought

Institute of AgroPhysics, Plant Physiology and Biochemistry, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050051

摘要: 干旱问题是制约作物生长和产量的主要逆境因素之一。合理施用N、P、K肥可补偿干旱条件下作物生长受抑和产量降低的不良效应，改善植株的生理功能，提高水分利用效率。在生产实际中实行水肥耦合运筹，可充分发挥肥效，达到节水高产的目的。
- 作物 /
- 干旱 /
- 施肥 /
- 水分利用效率 /
- 水肥耦合
Abstract: Drought is the main factor restricting crop growth and yield. The proper application of nitrogen, phosphorus and potassium fertilizers could compensate the inhibition effects of crop growth and yield by drought-stress, improve the plant physiological function, and increase water use effi ciency. The application of coupling of water and fertilizer could sufficiently take advantage of the fertilizer effects, save water and get high yield.
- Crop /
- Drought /
- Fertilizer /
- Water use efficiency /
- Coupling of water and fertilizer