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以15年生的华酥、华金和五九香梨为试材,在不同生长期分别喷施300倍、500倍和700倍的氨基酸硒叶面肥。结果表明,氨基酸硒叶面肥可以极显著地提高梨果实中硒元素的含量,提高果实中钾、镁、钙等矿质元素的含量,提高华酥梨果实中铁的含量。氨基酸硒叶面肥可以改善梨的叶片质量,增加梨的平均单果重。综合考虑喷施效果和经济成本,700倍为适宜的喷施浓度。
Fifteen-year-old Huasu, Huajin and Wujiu pear were used as test materials, and were sprayed at different growth stages with 300 times, 500 times and 700 times amino acid selenium foliar fertilizer respectively. The results showed that amino selenium foliar fertilizer can significantly increase the content of selenium in pear fruit, increase the content of mineral elements such as potassium, magnesium and calcium, and increase the content of iron in the fruit of pear. Amino acid selenium foliar fertilizer can improve the quality of pear leaves and increase the average weight of pears. Taking into account the spray effect and economic costs, 700 times the appropriate spraying concentration.