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广种苜蓿,逐步实现草田轮作制,是改良土壤结构,提高土壤肥力的根本措施,也是实行农牧法合的先决条件.苜蓿改土的良好效果,已为许多事例所证实.如农七师下户垦区,经过7年的艰苦奋斗,大量种植苜蓿,把“无水一把刀,见水一团糟”的光板地改造成为自治区的棉粮基地,连年获得(?)产,彻底改变了穷八户的面貌.所以,自治区党委要求各个农业生产单位广种苜蓿,使达到总播面积的20—30%.苜蓿害虫特多,有直接为害牙齿蓿的,也有
The wide variety of alfalfa and gradual realization of grassland rotation system are the basic measures to improve the soil structure and soil fertility and are also the prerequisites for the implementation of the law of agriculture and animal husbandry.Although the good effect of alfalfa soil improvement has been proved in many cases, Under the reclamation area, after seven years of arduous cultivation, planting alfalfa in large quantities and transforming the light board of “a knife without water and a mess of water” into a cotton grain base in the autonomous region, and successive years acquired (?) Production, completely changed the poor Therefore, the autonomous regional party committee requires that various agricultural production units wide variety alfalfa, so that the total sowing area of 20-30% of alfalfa pests Trinidad and Tobago, there is a direct toothpaste damage, but also