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Effects of Chemical Fertilizer Combined with Organic Fertilizer Application on Soil Properties, Citrus Growth Physiology, and Yield

Lian-Jie Wan, Yang Tian, Man He, Yong-Qiang Zheng, Qiang Lyu, Rang-Jin Xie, Yan-Yan Ma, Lie Deng and Shi-Lai Yi
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Lian-Jie Wan: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Yang Tian: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Man He: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Yong-Qiang Zheng: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Qiang Lyu: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Rang-Jin Xie: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Yan-Yan Ma: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Lie Deng: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China
Shi-Lai Yi: National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China

Agriculture, 2021, vol. 11, issue 12, 1-15

Abstract: Chemical fertilizer has been excessively used for high yield of citrus around the world, especially in China; meanwhile, it deteriorates the citrus orchard soil environment. To resolve the conflict, the use of organic fertilizer provides a promising solution. However, the data about organic fertilizer used in citrus orchard is rarely available. Here, four treatments including CK (no fertilizer), CF (chemical fertilizer), OF + CF (chemical fertilizer reduction combined with organic fertilizer; application of N, P 2 O 5 , K 2 O fertilizer and organic fertilizer is 0.564, 0.236, 0.336 and 10 kg/plant), and BF + CF (chemical fertilizer reduction combined with bioorganic fertilizer; application of N, P 2 O 5 , K 2 O fertilizer and bioorganic fertilizer is 0.508, 0.320, 0.310 and 10 kg/plant) were performed in a ‘Ponkan’ ( Citrus reticulata Blanco) orchard to evaluate the effect of organic fertilizer on citrus yield, growth, soil properties etc. when nutrients of fertilizer of each treatment were equal except CK. The data obtained in 2019 and 2020 showed that both OF + CF and BF + CF were beneficial to improve soil fertility (soil physicochemical and microbe properties) and citrus growth physiology (growth, nutrient and photosynthesis), alleviate NO 3 − -N leaching, and promote yields. Comprehensive evaluation indicated that BF + CF was more effective than OF + CF. Together, organic fertilizer has the potential to substitute partial chemical fertilizer with improvement in soil properties, growth physiology, and yield of citrus.

Keywords: Ponkan; organic fertilizer; soil properties; photosynthesis; yield (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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