田菁是耐盐力强的夏季绿肥.兹根据1963年以来试验和省内示范试验的部分资料,初步整理出来,供生产上参考.一、种压绿肥的改良作用1.改良小气候抑制土壤返盐由于田菁茂密枝叶的覆盖结果,使土壤表层和近地面温度降低,湿度增高,返盐轻.据7月测定,田菁地近地面5厘米气温为31.0℃,湿度60.3%,0—5厘 Tian Jing is a salt-tolerant summer green manure.It is based on some data from experiments and demonstration experiments in the province since 1963, and is initially sorted out for reference on the production. First, the pressure to improve the role of green manure 1. To improve the microclimate to inhibit the soil back Salt as a result of the coverage of Tiansheng dense branches and leaves, so that the soil surface and near the ground temperature decreases, the humidity increases, re-salt light.According to the determination in July, Sijing Jing 5 cm near the ground temperature is 31.0 ℃, humidity 60.3%, 0-5 PCT