论文部分内容阅读
通过多年试验示范探索证实,在“麦//玉//苕”三熟总收益基本稳定的前提下,由一年三熟改制为“麦//‘玉+大豆’//苕”一年四熟,每667 m2能增收大豆70~125 kg,667 m2增效239元以上。同时,四熟制的生态效益也明显,玉米收获后大豆迅速生长,抑制了玉米种植带杂草滋生,避免了除草剂对环境及农产品的污染,大豆根瘤菌和枯枝落叶能培肥土壤,有利于提高地力。
Through many years of experimental demonstration and exploration, it has been confirmed that under the premise of a stable total revenue of the third millet of “” “// // 麦 // 玉 // 苕”, the conversion from one ripening year to “wheat // jade + soybean” /// "Four crops a year, every 667 m2 can increase the soybean 70 ~ 125 kg, 667 m2 synergy more than 239 yuan. At the same time, the ecological benefit of four-cropping system is also obvious. The rapid growth of soybean after harvest of corn inhibits the breeding of weeds in the corn planting belt, avoids the pollution of the environment and agricultural products by the herbicide, soybean rhizobia and litter can fertilize the soil, Conducive to improve soil fertility.