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前言华北稻区由于水源所限,种稻面积不能扩大。长期以来人民对稻米的需求得不到满足。但是华北地区降雨比较集中,若能充分利用雨季自然降水,进行稻的超短期旱栽培,就可为稻田的扩大和提高复种指数开辟一条新的途径。针对这一日标,北京农业大学农学系选育了极早熟陆稻新品种秦爱,它可以在北方冬麦区进行麦茬直播旱栽培。近几年来,在京津地区和河北省进行多点试种,深受农民欢迎。为使这一栽培方式尽快建立,成为一种有效的种植制度,在品种试种同时,在1980年确
Preface North China rice due to water constraints, the area can not be expanded rice. People’s demand for rice has not been met for a long time. However, the rainfall in North China is relatively concentrated. If we can make full use of the natural precipitation in the rainy season and carry out the ultra-short-term dry cultivation of rice, we can open up a new way for expanding and improving the multiple cropping index. In response to this standard, Beijing Agricultural University Department of Agronomy breeding a very early maturing new varieties of landrace Qin love, it can be in the northern winter wheat stubble dry cultivation. In recent years, in Beijing and Tianjin and Hebei provinces to carry out more trials, welcomed by farmers. In order to establish this cultivation method as soon as possible, it became an effective planting system. At the same time,