Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (4): 670-677.DOI: 10.3969/j.issn.1004-1524.2021.04.12

• Environmental Science • Previous Articles     Next Articles

Effect of drip fertigation with organic liquid fertilizer on soil environment, fruit yield, quality, and economic benefits of citrus cv. beni madonna

XI Hui1(), LI Guolei2,*(), TAO An’an3, GU Pin4, HAN Dongdao5, LI Na1, CHEN Xijing1   

  1. 1. Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. Agricultural Technology Extension Center of Xiangshan County, Xiangshan 315700, China
    3. Agricultural Product Quality Inspection Center of Xiangshan County, Xiangshan 315700, China
    4. Xiangshan Yonghong Fruit and Vegetable Co., Ltd., Xiangshan 315736, China
    5. Ningbo Peninsula Muge Biotechnology Co., Ltd., Xiangshan 315702, China
  • Received:2020-09-24 Online:2021-04-25 Published:2021-04-25
  • Contact: LI Guolei

Abstract:

Based on the nutritional requirement, the organic liquid fertilizer made from biogas, rotting citrus and chemical fertilizers, was drip fertigated to test its effect on soil fertility, fruit yield and economic income of citrus cv. beni madonna. Four treatments were set: CK, no fertilization; F1, traditional fertilization (spread application, N 480 kg·hm-2, P2O5 480 kg·hm-2, K2O 480 kg·hm-2); F2, balanced chemical fertilization (N 480 kg·hm-2, P2O5 180 kg·hm-2, K2O 540 kg·hm-2, drip fertigation); F3, organic liquid fertilization (N 400 kg·hm-2, P2O5 120 kg·hm-2, K2O 380 kg·hm-2, drip fertigation). The results showed that fertilization could enhance soil fertility, increase citrus fruit yield and economic income, but would decrease soil pH and soil organic matter content. Compared with F1 and F2 treatments, it achieved higher soil pH, and increased economic income by 6.73%-25.39% under F3 treatment. Besides, there was no significant difference on fruit quality within treatments. Although drip fertigation with organic liquid fertilizer could reduce fertilizer input, improve soil fertility, elevate soil pH, and increase the fruit yield and economic income, addition of other organic fertilizers should be well considered.

Key words: organic liquid fertilizer, drip irrigation, soil environment, economic income

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