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1.在5月中旬和6月中旬各喷布一次500ppm的硝酸稀溶液,对红色品种果实的着色和增加果实糖分均有很大的促进作用。可明显提高苹果果实的品质。 2.在果实着色期喷2000—3000ppm的B_9,对红色品种的着色有明显作用。果实生长后期树下铺银
1. In mid-May and mid-June each spraying a 500ppm dilute nitric acid solution on the red varieties of fruit coloring and increased fruit sugar have a great role in promoting. Can significantly improve the quality of apple fruit. Spraying 2000-3000ppm of B_9 in the fruit coloring period has a significant effect on the coloring of red varieties. The tree grows late under the silver tree