行内疏枝和生长延缓剂对紫花苜蓿种子产量与发芽率的影响
행내소지화생장연완제대자화목숙충자산량여발아솔적영향
Pruning in Autumn,Spraying of Growth Regulators in Spring to Promote Alfalfa (Medicago Sativa L.) Seed Yield and Germination
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