论文部分内容阅读
近10年来，旱地农业生产的研究在我国受到充分的重视．人们通过对我国旱地土壤焦点问题“早”与“薄”的认识，提出以水、肥调控作为改善和提高旱作水分利用效率的措施之一．由于缺水的作物具有抗早生理适应性的自身调节机能，并且可能会对外界不利或有利因素（如气象因素、水、肥措施）的影响作出各种响应和调整，因此了解缺水条件以及改变水肥条件时作物的反应及其适应能力，对于认识和协调旱农生产中的水肥关系具有参考意义．
In the past 10 years, the research on dryland agricultural production has been given full consideration in our country. Based on the understanding of “early” and “thin” issues in the dryland soil of our country, people put forward the regulation of water and fertilizer as one of the measures to improve and enhance the water use efficiency of dry land. Since water-deficit crops have self-regulating physiological functions that are resistant to early physiological adaptation and may respond and adjust to the effects of unfavorable or favorable external factors such as meteorological factors, water and fertilizer measures, it is important to understand water deficit conditions and Changing the response of crops to water and fertilizer and their adaptability can be of reference value for understanding and coordinating the relationship between water and fertilizer in dry farming.