Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (11): 108-113.doi: 10.11924/j.issn.1000-6850.casb2020-0298

Special Issue: 园艺

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Effect of Walnut Special Bio-organic-inorganic Compound Fertilizer on Walnut Planting

Zhao Xuetong1(), Xu Siqi2(), Zhang Qi1, Pan Wenzheng1, Shang Haili2, Wang Bin1, Wang Jingxian2, Zhao Rongbiao2   

  1. 1Yunnan Yunye Fertilizer Co., Ltd., Kunming 650217
    2Yunnan Fermentation Engineering Research Center Co., Ltd., Kunming 650217
  • Received:2020-07-27 Revised:2020-09-08 Online:2021-04-15 Published:2021-04-13
  • Contact: Xu Siqi E-mail:1473699132@qq.com;1033932814@qq.com

Abstract:

At present, the special fertilizer for walnut is based on compound fertilizer and organic fertilizer, which has low fertilizer utilization rate and can cause waste of fertilizer and increase the cost of fertilization. This study combined the law of walnut fertilizer and the status of soil nutrient in the main walnut producing area, and studied the application of bio-organic-inorganic compound fertilizer on walnut in Yunnan, aiming to improve the utilization rate of fertilizer, reduce the application amount of fertilizer and enhance the soil microbial activity. The soil microorganism and the colonization of functional strains were detected during fertilizer application, and the agronomic characters of the treated walnut plants were determined. The results showed that 16-6-8 bio-organic-inorganic compound fertilizer (oil blight fermentation) could promote the growth of bacteria and actinomyces, inhibit the growth of fungi, and facilitate the colonization of 4 functional bacteria in the soil. 16-6-8 bio-organic-inorganic compound fertilizer (flue gas fermentation) had obvious effect on walnut yield and quality improvement. Based on the agronomic characters, economic characters and fertilization cost, the bio-inorganic-inorganic compound fertilizer formed by the fermented tobacco stalk and ash had a relatively low cost, and the field performance and yield of walnut were relatively high. Therefore, the bioorganic-inorganic compound fertilizer is recommended for the production of walnut.

Key words: walnut, bio-organic-inorganic compound fertilizer, soil microorganisms, agronomic traits, yield

CLC Number: