Effects of biochar application on soil physical and chemical properties and fruit quality of kiwifruit orchards

doi:10.14088/j.cnki.issn0439-8114.2025.01.018

Abstract

Abstract: In order to study the effects of biochar on soil physical and chemical properties and fruit quality formation in kiwifruit orchards, a field experiment was carried out in the rain-sheltered kiwifruit orchard with 12-year-old kiwi （Actinidia chinensis） as test materials. Four biochar application rates of 0 kg/plant （CK）, 4 kg/plant （B4）, 8 kg/plant （B8） and 16 kg/plant （B16） were set up. The results showed that biochar application significantly increased soil pH, organic matter content and available phosphorus content（P<0.05）, and increased soil fertility. The yield per plant and single fruit weight of kiwifruit increased significantly with the increase of biochar application（P<0.05）. The soluble solid content, soluble sugar content, vitamin C content and solid-acid ratio of kiwifruit fruit increased significantly after biochar application（P<0.05）, and the content of titratable acid content was inhibited（P<0.05）. The effect of different biochar application amount on fruit quality was different, and the fruit intrinsic quality of group B8 was the best. Therefore, the application of biochar could improve soil physical and chemical properties to enhance the yield and fruit quality of kiwifruit.

Key words: biochar, kiwifruit（Actinidia chinensis）, soil physical and chemical properties, fruit quality

CLC Number:

WU Bo-ping, HUO Liu-qing, MA Hai-jie, GAO Yong-bin, XU Kai. Effects of biochar application on soil physical and chemical properties and fruit quality of kiwifruit orchards[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(1): 100-103.

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