论文部分内容阅读
稀土是一种新型的作物生长调节剂,能明显提高粮食、棉花等作物产量.为了探索稀土在油菜生产中的作用及有效施用方法.1990～1992年进行了试验研究.材料与方法(一)供试材料稀土为河南省商丘冶炼化工厂生产的常乐益植素,有效成分含量为38%.试验地土壤分别为潮土、盐土、水稻土,土壤有机质含量12.1～18.9g/kg,速效磷含量为3.1～6.8mg/kg,土壤速效钾(中性醋酸铵提取)含量为60.5～198mg/kg.土壤pH8.05,油菜品种以我县推广的秦油2号为主.(二)试验方法
Rare earth is a new crop growth regulator, which can significantly increase the yield of grain, cotton and other crops.In order to explore the role of rare earth in rapeseed production and effective application method, the experimental study was carried out from 1990 to 1992. Materials and Methods (I) Materials for testing Rare earth is Changle, the active ingredient produced by Shangqiu smelting chemical plant in Henan Province, with the active ingredient content of 38% .The test soils are soil, salty soil and paddy soil respectively, and the soil organic matter content is 12.1 ~ 18.9g / kg, Phosphorus content of 3.1 ~ 6.8mg / kg, soil available potassium (neutral ammonium acetate extract) content of 60.5 ~ 198mg / kg soil pH8.05, rapeseed varieties in our county to promote the Qin oil No. 2. (2) experiment method