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水稻旱种是一种节约用水的新栽培方式,水稻在旱地条播,靠底墒出苗、成长,进入雨季后再进行灌溉保水,以此来适应京郊春旱夏涝的气候特点,解决年降雨量少且年际变幅大与播种水稻、保持水稻种植面积相对稳定的矛盾,一般旱种春稻5月中旬播种,6月下旬开始灌水,以后每隔一周一水(遇雨停浇),保持土壤湿润,8月下旬停水,全生育灌水量约200—309方,为普通插秧稻用水量的1/4,亩产可达1,000—1,100斤。麦、稻套种的旱种稻,
Dry cultivation of rice is a new water-saving cultivation method. Rice is planted in dry land, emerges from the bottom, grows and enters the rainy season before irrigation and water retention, so as to adapt to the climate characteristics of spring, summer and flood in the suburbs of Beijing and solve the problem of annual rainfall Less inter-annual amplitude and sow rice, rice planting area to maintain a relatively stable contradiction, the general dry spring planting of sowing mid-May of mid-June, irrigation began in late June, and every other week after a water (stop pouring rain), to maintain Soil moisture, no water in late August, the whole birth of about 200-309 square irrigation water, water for ordinary transplanting rice 1/4, per mu up to 1,000-1,100 pounds. Wheat, rice interplanting dry rice,