Optimizing Fertilizer Management Based on Controlled-Release Fertilizer to Improve Yield, Quality, and Reduce Fertilizer Application on Apples

Autor: Junfei Shao, Ting Xu, Yuanmao Jiang, Dongdong Cheng, Tang Yafu, Yan Liu, Ronghui Ma, Junyin Li
Rok vydání: 2021
Předmět:
Zdroj: Journal of Soil Science and Plant Nutrition. 22:393-405
ISSN: 0718-9516
0718-9508
DOI: 10.1007/s42729-021-00656-0
Popis: The application of controlled-release fertilizer was an effective measure to improve the fertilizers utilization, increase yield, and reduce environmental pollution. This study aimed to explore the effects of application times and frequency and fertilization ratio of controlled-release compound fertilizer with different nutrient release periods on apple production. The experimental design consisted of controlled-release compound fertilizers with nutrient release period of 3 months (C3), controlled-release compound fertilizers with nutrient release period of 6 months (C6), and common compound fertilizer (CCF). The treatments included (1) one-time application of C6 in March (B-C6); (2) one-time application of C6 in October (H-C6); (3) one-time application of 50% C3 and 50% C6 in March (B-(50C3 + 50C6)); (4) one-time application of 70% C3 and 30% C6 in March (B-(70C3 + 30C6)); (5) common compound fertilizer (CCF) with one-time application of CCF in March (B-CCF); and (6) common compound fertilizer with three-time application of CCF in March, June, and October (CT). The index of apple yield, apple tree growth index, fruit quality, and soil nutrient status were evaluated in 2-year filed production system. The results indicated that the treatment of B-(50C3 + 50C6) significantly improved the growth of apple trees on trunk diameter, plant height, new shoot growth and chlorophyll content, and the apple yield increased by 8.82%. By comprehensive comparison of yield, soil nutrients, and fruit tree growth indexes, the treatment with (B-(50C3 + 50C6)) was considered to be the best controlled-release fertilizer application method.
Databáze: OpenAIRE
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