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光照是影响晚熟桃着色的重要因素,怎样增进晚熟桃的着色?主要措施如下: 1.调整土壤pH值:如江南地区pH值4.5—5的强酸性土壤,可每亩施石灰50—100公斤,或草木灰50—100公斤,中和土壤,促进磷的释放。在pH值6.5—7.5的中性土壤中,每亩土施硫酸亚铁4公斤,硫酸锰1—4公斤,也可在桃树发芽前全树喷施0.3%—0.5%硫酸亚铁;生长期的4—9月份,
Light is an important factor affecting late-maturing peach coloring, how to enhance the color of late-maturing peach? The main measures are as follows: 1. Adjusting the soil pH value: If the strong acid soil pH value of 4.5-5 in the southern region, , Or ash 50-100 kg, neutralize the soil, and promote the release of phosphorus. In a neutral soil pH 6.5-7.5, 4 kg of ferrous sulfate and 1-4 kg of manganese sulfate are applied per mu of soil, and 0.3% -0.5% ferrous sulfate can also be sprayed on the whole tree before the peach tree is sprouted. From April to September,