Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2020, Vol. 10 ›› Issue (2): 56-61.doi: 10.11923/j.issn.2095-4050.cjas20190600069

Special Issue: 生物技术 园艺

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Reduced Compound Fertilizer with Bio-organic Fertilizer: Effects on Soil Fertility and Enzyme Activity of Tomato

Zhao Manxing1,2, Liu Hui1, Wang Jing1, Chang Huixuan1, Cheng Zhirong1   

  1. 1 College of Life Sciences, Yan’an University, Yan’an 716000, Shaanxi, China;
    2 Shaanxi Key Laboratory of Chinese Jujube (Yan’an University), Yan’an 716000, Shaanxi, China;
  • Received:2019-06-10 Revised:2019-07-25 Online:2020-02-24 Published:2020-02-24

Abstract:

To clarify the effect of compound fertilizer reduction with bio-organic fertilizer, taking a tomato cultivar ‘Tuteng’ as the study object, we studied the effects of applying bio-organic fertilizer combined with different compound fertilizer reduction (10%, 20% and 30%) on soil fertility and enzyme activity. The results showed that: compared with conventional fertilization (CK), chemical fertilizer reduction combined with bio-organic fertilizer could significantly increase the soil available nutrients, compared with compound fertilizer (TK) treatment, the contents of soil organic matter, balkali-nitrogen, available phosphorus and available potassium increased by 6.42%-26.11%, 14.75%-26.23%, 4.38%-10.74% and 26.63%-39.09%, respectively; compared with CK and TK, chemical fertilizer reduction combined with bio-organic fertilizer significantly decreased soil enzyme activity during seedling period; and increased the activities of urease and catalase at flowering stage by 73.05%-92.74% and 14.65%-32.23%, respectively; during maturity, the bio-organic fertilizer combined with chemical fertilizer reduction 20% (F2) increased the urease activity by 10.90%, and the bio-organic fertilizer combined with chemical fertilizer reduction 10%, 20%, 30% (F1, F2, F3) significantly increased the catalase activity by 55.56%, 82.22% and 76.67%, respectively; with the extension of the growth period of tomato, the catalase activity increased first and then decreased.

Key words: Bio-organic Fertilizer, Chemical Fertilizer Reduction, Tomato, Catalase, Urease, Soil Fertility

CLC Number: