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辽宁省滨海盐渍土多分布于低洼易涝地区,以盘锦沿海地区为主。这些盐碱地,除部分已开垦种植外,尚有大面积荒地。已被垦殖的土地,也因盐碱重,肥力低,危害作物出苗和生长,引起作物减产,甚至成片死亡,严重地影响单位面积产量和总产量。为了加速盐碱地的改造利用,使达到稳产高产,种植绿肥作物是有效措施之一;特别是在水旱轮作中,绿肥占着重要的地位。因此研究绿肥作物的栽培和提高土壤肥力的作用,对农业生产的发展具有重大的实践意义。本文系根据1957年到1964年的部分研究资料加以整理,供各地参考。
Coastal saline soil in Liaoning Province is mainly distributed in low-lying and flood-prone areas, mainly in Panjin coastal areas. These saline soils, in addition to some already cultivated, there is still a large area of wasteland. Land that has been cultivated also has serious problems of yield per unit area and total output due to heavy salt and alkali, low fertility, endangering the emergence and growth of crops, causing crop cuts and even deaths. In order to speed up the transformation and utilization of saline-alkali so as to achieve stable and high-yielding crops, planting green manure crops is one of the effective measures. Especially in the rotation of dry and wet farming, green manure occupies an important position. Therefore, the study of the cultivation of green manure crops and the enhancement of soil fertility have great practical significance for the development of agricultural production. This article is based on part of the research data from 1957 to 1964 to be collated for reference.