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重迎茬大豆生育期土壤速效氮、磷、钾变化动态研究初报谷思玉王兆荣魏自民(东北农业大学农学院·哈尔滨,150030)大豆重迎茬对土壤养分的影响,过去已作了大量研究。王震宇(1991)认为大豆重迎茬后土壤全量养份下降;王英祥的研究指出,大豆重迎茬导致土壤中...
Preliminary Study on Dynamic Changes of Soil Available Nitrogen, Phosphorus and Potassium During Heavy Cropping of Soybean Soybean Gusu Wang Zhaorong Wei Zi Zimin (College of Agriculture, Northeast Agricultural University, Harbin 150030, China) A large number of studies have been conducted in the past on the influence of soybean on the soil nutrient. . Wang Zhenyu (1991) that the total amount of soil after the heavy crop stubble decline in nutrients; Wang Yingxiang research pointed out that the soybean re-stubble lead to soil ...