【摘要】 根据田间试验结果,初步建立辽宁省主要蔬菜土壤养分丰缺指标。相对产量与土壤碱解氮、速效P、速效K含量进行方程拟合,以相对产量75%、75%~95%和大于95%为标准,得出保护地黄瓜、番茄土壤肥力等级为低、中、高对应的土壤有效养分含量。更多还原

【Abstract】 According to the results of field experiment,the article presents the soil nutrition index of main vegetables preliminarily established in Liaoning province.Relative yield and soil alkali solution N,available P,available K content were fitted,using relative yield of 75%,75 to 95% and more than 95% as the standard,to get low,medium and high corresponding soil available nutrition content of fertility grade of cucumber and tomato in protection field.更多还原