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为研究有机无机复混肥对紫花苜蓿产量和品质的影响,试验选择“公农1号”苜蓿,测定不同施肥处理对苜蓿鲜草产量、干草产量、茎叶比、粗蛋白、中性洗涤纤维和酸性洗涤纤维含量的影响。结果表明:施肥可提高苜蓿的鲜草产量、干草产量和粗蛋白含量,降低茎叶比和中性洗涤纤维、酸性洗涤纤维含量;与氮磷钾复合肥相比,有机无机复混肥可提高苜蓿的粗蛋白含量,提高苜蓿第三茬的鲜草产量、干草产量,降低第二、第三茬苜蓿的茎叶比以及第三茬苜蓿的中性洗涤纤维含量。说明施用有机无机复混肥可提高紫花苜蓿的产量和品质。
In order to study the effects of organic-inorganic compound fertilizer on the yield and quality of alfalfa, the experiment was conducted to select “Xinnong 1” and alfalfa to test the effects of different fertilization treatments on fresh grass yield, hay yield, stem and leaf ratio, crude protein, The effect of detergent fiber and acid detergent fiber content. The results showed that fertilization could increase the fresh grass yield, hay yield and crude protein content of alfalfa, reduce the ratio of stems and leaves, neutral detergent fiber and acidic detergent fiber. Compared with NPK compound fertilizer, organic-inorganic compound fertilizer could increase The crude protein content of alfalfa increased fresh grass yield and hay production for the third crop of alfalfa, decreased the ratio of stem to leaf of the second and third stubble alfalfa and the neutral detergent fiber content of the third crop of alfalfa. It shows that the application of organic-inorganic fertilizer can improve the yield and quality of alfalfa.