Effects of different fertilizer reduction and efficiency increasing modes on yield and quality of Chinese cabbage

doi:10.14088/j.cnki.issn0439-8114.2023.01.016

Abstract

Abstract: In order to clarify the changes of soil and crop indexes under different fertilizer reduction and efficiency enhancement modes, field plot experiments were conducted to study the effects of different fertilizer reduction measures on the yield, quality and soil physical and chemical properties of Chinese cabbage. The results showed that among the different fertilizer reduction measures, the yield of pakchoi recommended for fertilization was the highest, which was 31 945 kg/hm². Under the fertilizer reduction and efficiency increase measures, the yield of pakchoi increased by 30.85%~43.26%, the content of nitrate in leaves decreased by 16.54%~28.33%, the content of soluble protein increased by 4.96%~11.83%, and the content of VC and soluble sugar did not change significantly. The quality of Chinese cabbage was the best by applying organic fertilizer instead of chemical fertilizer. After fertilizer reduction, the nitrogen accumulation of Chinese cabbage increased by 13.20%~25.70%, and there was no significant difference in phosphorus and potassium accumulation. The agronomic utilization rate of water-soluble fertilizer was 95.39 kg/kg, which was significantly higher than that of other treatments. The agronomic efficiency of farmers' habitual fertilization was the lowest, only 24.23 kg/kg. Fertilization could improve soil physical and chemical properties, but the planting of one season Chinese cabbage had no significant effect on soil pH and EC value. After the application of organic fertilizer, the contents of organic matter, mineral nitrogen, available phosphorus and available potassium in the soil were also significantly higher than those of other fertilization treatments. In conclusion, considering the yield and quality of Chinese cabbage, fertilizer agronomic efficiency and soil fertility, applying organic fertilizer and water-soluble fertilizer could achieve better results.

Key words: fertilizer reduction and efficiency increase, Chinese cabbage, organic fertilizer replacement, crop yield, crop quality

CLC Number:

WANG Su-ping, ZHU Wen-ge, LEI Xiong-Hao, WANG Sheng-jun, ZENG Xue-jun, ZHANG Gui-you, DU Lei, JIANG Li, LIU Xin, HONG Juan. Effects of different fertilizer reduction and efficiency increasing modes on yield and quality of Chinese cabbage[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(1): 100-103.

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