起垄覆膜垄沟覆草对山地苹果树氮肥吸收、利用、产量和品质的影响
郭 伟, 王延平, 韩明玉, 张林森, 穆 艳, 李生光
起垄覆膜垄沟覆草对山地苹果树氮肥吸收、利用、产量和品质的影响
Effect of Ridge Ffilm Mulching Combined with Straw Mulching Technology on N Absorption and Utilization of Apple in Loess Hilly Area of Northern Shaanxi Province
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