Effects of controlled release compound fertilizer and its application methods on the growth of young apple trees and soil nutrientsChinese Full TextEnglish Full Text (MT)
LI Junyin;LIU Yan;TANG Yafu;MA Ronghui;SHAO Junfei;XU Ting;HUANG Songjun;YANG Yuechao;JIANG Yuanmao;CHENG Dongdong;Nation Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,College of Resources and Environment, Shandong Agricultural University;Shandong Provincial Soil and Fertilizer General Station;Agriculture and Rural Bureau of Wendeng District;College of Horticulture Science and Engineering, Shandong Agricultural University;
Abstract: In order to achieve the goal of reducing fertilizer application, this article explored the application methods of controlled-release compound fertilizer and ordinary compound fertilizer on young apple trees through a pot experiment for two consecutive years. A total of 7 treatments were set up in the experiment: one-time application of controlled-release compound fertilizer C6（M-C6） in March, one-time application of controlled-release compound fertilizer C6（O-C6） in October, and one-time application of 3 months and 6 months in March Monthly controlled release period of 50% controlled release compound fertilizer in March（M-（50 C3+50 C6））, one-time application of 70% for 3 months and 30% for 6 month controlled release period of controlled release compound fertilizer in March（M-（70 C3+30 C6））, one-time application of ordinary compound fertilizer in March（M-CCF）, divided application of ordinary compound fertilizer（CT）, and no fertilizer（CT）. The results for 2 consecutive years showed that the use of controlled-release compound fertilizer blending with a release period of 3 months and 6 months could effectively promote the absorption and utilization of nutrients by young apple trees, and was beneficial to improve the soil nutrient status. Among them, M-（70 C3+30 C6） treatment increased the utilization efficiency of nitrogen and potassium by 38.09% and 30.22% respectively; M-（50 C3+50 C6） treatment significantly increased the utilization efficiency of phosphorus by 21.88%.
Keywords：
controlled release compound fertilizer; young apple tree; nutrient utilization rate; growth; soil nutrient;
- DOI：
10.16445/j.cnki.1000-2340.20210322.001
- Series：
(D) Agriculture
- Subject：
Horticulture
- Classification Code：
S661.1
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