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丘陵地区的稻麦輪作占有一定面积。在安庆专区,中稻收割后离种午季,一般还有五十天左右。这段期間,气温高、雨量少,适宜稻田插种檉麻。为明确插种掩青在輪作中的作用,1962—1963年我所进行了試驗,連續观察对麦、稻增产效果及在調节土壤养分平衡上的作用。試驗分四个处理:1.亩施磷素种肥二点四斤,檉麻产草一千八百斤,掩青为基肥;2.亩施氮素种肥一斤,檉麻产草一千四百斤,掩青为基肥;3.不施肥,檉麻亩产鮮草一千二百斤,掩青为基肥;4.干耕晒垡,不种檉
Hilly areas have a certain area of rice and wheat rotation. In Anqing area, after mid-season rice harvest from the midday, there are generally about 50 days. During this period, the temperature is high, less rainfall, suitable for rice planting flaxseed. In order to clarify the role of intercalary in crop rotation, we conducted experiments from 1962 to 1963 and continuously observed the effects on yield enhancement of wheat and rice and the regulation of soil nutrient balance. Tests were divided into four treatments: 1. M acre applied phosphorus fertilizer 2.4 kilograms, hemp grass 1800 kilograms, cover the green for the base fertilizer; 2. M acre of nitrogen fertilizer a catty, One thousand four hundred pounds, cover the green as the base fertilizer; 3. Without fertilizing, hemp seed mu produce fresh grass one hundred two hundred jin, cover the green base fertilizer; 4 dry farming sunbathing,