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轮作是培养地力、提高作物产量的基本措施。我国农民素有丰富的轮作经验,陕西关中(土娄)土地区是古老农业区之一,群众经验更为成熟和完善。长期以来,采用豌豆、苜蓿与小麦轮作,对调节和增进土壤肥力,起着重要作用。任何地区的轮作制度的形成都和当地自然环境条件、耕作栽培水平有密切关系。为了更好地贯彻增产措施,促进作物大面积平衡增产,固有的轮作经验必须给予应有的重视。1952—1958年在陕西武功头道塬红油土上作了有关的试验测定,结合调查总结,取得一些资料。兹将工作结果提出,借供参考。
Crop rotation is the basic measure to cultivate fertility and increase crop yield. The peasants in our country are rich in rotation experience. The Guanzhong (Earth) Loess Area in Shaanxi is one of the ancient agricultural areas, and the masses’ experience is more mature and perfect. For a long time, pea, alfalfa and wheat rotation played an important role in regulating and enhancing soil fertility. The formation of a rotation system in any area is closely related to the local natural environment conditions and cultivation and cultivation level. In order to better implement the stimulation measures and promote the large-scale balanced increase of crops, the inherent rotation experience must be given due attention. From 1952 to 1958, the related experiment was made on the red oil soil of Shuguanduan of Daoguang in Shaanxi Province. Based on the investigation and conclusion, some data were obtained. I will put forward the work results, for reference.