河北省低平原旱作农区,水旱地插花状分布,水资源日趋紧缺,降水集中造成季节性干旱以及较高的复种指数是当地农业的基本特点。研究表明:早熟品种具有明显地避旱特性;增施肥料能提高水分生产效率;因雨耕作对土壤水分进行调控能确保全苗;开发利用浅层地下水能显著提高粮棉产量。 Lowland plain farming areas in Hebei Province, the distribution of water and dry flowers, the growing shortage of water resources, precipitation caused by seasonal drought and a higher priority for multiple cropping is the basic characteristics of local agriculture. The results showed that: precocious varieties have obviously drought-resistant characteristics; increasing fertilizers can increase water production efficiency; regulating the soil moisture due to rain-fed farming can ensure the whole seedlings; developing and using shallow groundwater can significantly increase grain yield.