不同肥料配比对金红苹果营养生长的影响

Effects of the Different Fertilizer Ratio on the Growth of Jinhong Apple

试验以金红苹果为研究对象,研究不同肥料配比对苹果新梢生长和根系分布的影响。发现不同施肥处理均较对照显著提高了苹果的新梢生长量、单位面积吸收根和总根量。化肥对苹果新梢生长量、根系生长和分布的贡献率为：氮肥〉磷肥〉钾肥,全肥料处理促进了苹果树地上部新梢生长,并改善了吸收根在20~60cm土层内的分布,增加了土壤深层吸收根和总根数。

Experiment with the Jinhong apple as the research object, Studied the effects of the different fertilizer ratio on new shoot growth and root distribution of Jinhong apple. It was found that different fertilization treatments sig- nificantly increased the rate of new shoot growth , absorbing root per unit area and total root amount of Jinhong ap- ple than control . The contribution rate of chemical fertilizer on the rate of new shoot growth,root growth and dis- tribution of apple was： nitrogen fertilizer〉 phosphate fertilizer〉 potash fertilizer, The whole fertilizer treatment promoted the growth of new shoot and improved the distribution of absorbing root in 20 -60 cm soil layer, and in- creased the number of absorbing root and total root in deep soil layer.