在农业生产的实践中,如何培肥地力,防止土地次生盐渍化,处理好种地与养地的关系,是急需要解决的现实问题。为了使农业良性循环,各级领导都反复强调要种好苜蓿,多翻绿肥,这些都是培肥的好办法,但是这些办法,有的因为周期长,收效较慢,有的秆叶大部作了饲草,没有把改土与当年增收的关系紧密结合,因而养地的好方法总难于全面推开。至今还有不少的地方,只知用地忽视养地,为当年增收大量施用化肥,忽视对差地、闲地的改良,使土壤肥力下降,次生盐渍化的面识还在不断扩大,严重地影响农业稳定增产。 In the practice of agricultural production, how to cultivate fertility, prevent the secondary salinization of the land, and handle well the relationship between planting and raising of farmland are urgent problems to be solved. In order to promote a virtuous circle of agriculture, leaders at all levels have repeatedly stressed the need to planted alfalfa and turned green manures. These are all good ways to cultivate fertilizers. However, some of these measures are inefficient because of their long cycle, Made forage, did not change the soil and the income of the year closely integrated, so a good way to keep the land is always difficult to fully open. So far, there are still many places where we only neglected the use of fertilizers for land use, and used large amounts of chemical fertilizers for the year to increase their incomes. However, neglecting the improvement of poor land and leisure land, the soil fertility has declined and the secondary salinization has been constantly expanding. Seriously affected the steady agricultural production.