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在50年代,豌豆连作红苕是南充县旱地耕作制的主要形式,面积约为40万亩。随着粮食需求量的增大,豌豆面积迅速减少,豌豆—红苕栽培制度大部分为小麦—红苕和麦—玉+苕所取代,目前仅在二、三台和高坡地保留了10万余亩。由于地高、土薄、缺肥水,豌豆亩产仅80—120斤,鲜苕亩产800—1500斤。为改革豌豆—红苕栽培制度,我们于1981—1982年在龙门公社,对豌豆套种花生在旱地耕作制中的作用及其相应的栽
In the 1950s, peas, as a red clover, was the main form of dry farming system in Nanchong County with an area of about 400,000 mu. As the demand for food increased, the area of peas decreased rapidly. Most of the cultivation system for peas and red clumps was replaced by wheat-red crabs and wheat-jade + crabs. At present, only 100,000 acres are reserved in two, three and high slopes . As a result of high, thin soil, water shortages, peas yield only 80-120 pounds, fresh bees per mu 800-1500 pounds. In order to reform the cultivation system of pea-red mullet, we studied the effect of interplanting pea pea on dry land farming system and its corresponding planted in Longmen commune in 1981-1982