摘要
本文对西北黄土高原旱作农田作物降水生产潜力概算公式进行了修正。并用修正式概算了宁夏南部半干旱—半湿润偏旱区旱地主要粮食作物在多雨年、旱年和常年的降水生产潜力。讨论了提高旱作农田作物降水生产潜力的技术途径。
The estimative enpirical formula of porential of rainfall productivity for major foodcrops is revised in rainfed farmland on the Loess Plateau in Northwest China in this pa-per .Also, the revised empirical formula of potential of rainfall productivity is used toestimate the major food crops in the rainy years, droutht years and normal rainfall yearsin semiarid and semi-humid areas susceptible to droughts in south Ningxia. The pqperdeals with the technical approaches to the improvrment of potential of rainfall productiv-ity of field crops in the ruinfed farmland as well.
出处
《干旱地区农业研究》
CSCD
北大核心
1990年第4期54-61,共8页
Agricultural Research in the Arid Areas
关键词
粮食作物
降水生产潜力
旱作
prtential of rainfall productivity
rainy year
rainfed farmland
