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为了推动草业的大力发展,提高苜蓿草产量和质量,增加种植苜蓿的效益,笔者进行了苜蓿生长期喷施叶面肥和植物生长调节剂试验,从供试的5种叶面肥(药)中筛选出了2种适合苜蓿生长的叶面肥。试验证明叶面喷施磷酸二氢钾和澳优对苜蓿具有明显的增产效果,且能显著提高粗蛋白含量、降低粗纤维的含量,其增产效果达20%以上,粗蛋白含量提高9.37%~10.62%、粗纤维的含量降低4.36%~5.91%。因此,在苜蓿生长期推荐使用磷酸二氢钾和澳优进行叶面处理,喷施浓度分别为1000倍和500倍。
In order to promote the vigorous development of the grass industry, improve the yield and quality of alfalfa, and increase the efficiency of planting alfalfa, the author conducted experiments on the application of foliar fertilizer and plant growth regulator in alfalfa growth period. Five kinds of foliar fertilizer ) Were selected two kinds of alfalfa for the growth of foliar fertilizer. Experiments show that foliar application of potassium dihydrogen phosphate and Ooyu have significant effects on alfalfa yield increase, and can significantly increase the crude protein content, reduce the crude fiber content, the yield increase of more than 20%, the crude protein content increased 9.37% 10.62%, crude fiber content decreased 4.36% ~ 5.91%. Therefore, in alfalfa growing season, potassium dihydrogen phosphate and Aloe vera were recommended for foliar treatment at spray concentrations of 1000-fold and 500-fold, respectively.