论文部分内容阅读
近年来,一些地区绿肥种植面积因复种指数的不断提高而逐年减少,致使土壤肥力逐年下降。我们建议今年秋播各地要因地制宜,适当恢复绿肥种植,积极推广菜肥兼用、一肥多用的经济绿肥,千方百计套播好棉田冬绿肥。一、及早备种一般棉田套种,苕子每亩备种2～3公斤;大荚箭豌、百花豌豆每亩3～4公斤;蚕豆每亩13公斤;黄花苜蓿每亩8～10公斤;黑麦草每亩0.5公斤。播前坚持晒种,以提高发芽率。二、适期播种适期播好冬绿肥,有利于一播夺全苗,争早促发,壮苗越冬。根据近年棉花长势普遍偏旺、田间荫蔽较重的特点,一般套种苕子可于9月中、下旬播种;大荚箭豌在9月下旬至10月上旬;蚕豆和黄花苜蓿于10月上旬播种结束。坚持精细穴播,注意荫蔽小的先播,荫蔽大的后播。其他绿肥品
In recent years, the planting area of green manure in some areas has decreased year by year due to the continuous improvement of the multiple cropping index, resulting in a year-by-year decline in soil fertility. We suggest that we should adjust the measures for local conditions for autumn planting this year, properly restore green manures and actively promote the use of both vegetable and fat, and use more economical green manures. We should try our best to plant winter green manure in cotton fields. First, as soon as possible to prepare a general cotton field intercropping, prickly heat preparation of 2 to 3 kg per acre; large pods peas, peas peas 3 to 4 kg per acre; beans per acre 13 kg; alfalfa 8 to 10 kg per acre; black Wheat grass 0.5 kg per acre. Spread the sun before planting, in order to improve the germination rate. Second, the appropriate sowing period of good sowing winter green manure, is conducive to a sowing the whole seedlings, strive to promote early, strong seedlings wintering. According to the general tendency of cotton growth in recent years, the field shade heavier characteristics, the general intercropping prickly heat ratoon in September, late seeding; large pods peas in late September to early October; broad bean and alfalfa sowing in early October End. Adhere to the fine hole broadcast, pay attention to the shadow of the small first broadcast, a large shade after the broadcast. Other green manure products