Cabbage Yield, Quality and Soil Nutrient Balance Under Reduced Fertilizer Rate

doi:10.11924/j.issn.1000-6850.casb18090041

Abstract

Abstract: This study aims to investigate the effects of fertilizer reduction with applying amino acid and Bacillus mucilaginosus on yield, quality, partial productivity of nitrogen fertilizer of cabbage and soil nutrient balance. The results showed that the cabbage yield of fluid fertilizer(YTF) increased by 15.9% compared with that of solid fertilizer (GTF), while the yield of amino acid fluid fertilizer (AYTF) and amino acid fluid fertilizer containing B. mucilaginosus (AYTFM) increased by 6.6% and 10.3% respectively compared with that of YTF. However, under nitrogen reduction of 20%, the yield of AYTFJ and AYTFMJ increased by 3.9% and 7.1% compared with that of YTF. The nitrate content was the highest in GTF treatment and significantly decreased in fluid fertilizer treatments, and the AYTFJ treatment had the lowest value under 20% nitrogen reduction. Amino acids and B. mucilaginosus could increase soluble sugar and vitamin C content in cabbage, and AYTFM treatment had the highest soluble sugar content and significantly increased by 13.9% compare with that of YTF. Vitamin C content was the highest in AYTFMJ treatment and significantly increased by 7.6% compared with that of YTF. Amino acid and B. mucilaginosus could significantly increase the partial productivity of nitrogen fertilizer, especially in nitrogen fertilizer reduction treatments. Application of amino acids and B. mucilaginosus could increase nutrient accumulation and reduce soil nutrient surplus. Amino acid and B. mucilaginosus have obvious effect on saving fertilizer and enhancing efficiency.

CLC Number:

S143.2

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