Journal of Tianjin Agricultural University ›› 2025, Vol. 32 ›› Issue (1): 7-12.doi: 10.19640/j.cnki.jtau.2025.01.002

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Study on the effects of new potassium fertilizer on yield, quality and potassium uptake and utilization of peanut

Hong Ximing, Lu shuchangCorresponding Author, Guo Liuming, He Jiling, Tao Xuan, Jiang Yunhui   

  1. College of Agronomy and Resources Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2024-02-05 Published:2025-03-04

Abstract: In order to study the impact of new potassium fertilizer on crop growth, improve the use efficiency of potassium fertilizer, promote crop growth, and improve crop yield and quality, the effects of new potassium fertilizer application(0, 75, 150, 225, 300 kg/hm2)on the yield, quality and potassium uptake and utilization of peanut were studied by using the conventional treatment of traditional potassium fertilizer(150 kg/hm2)as the control. The results showed that the dosage of the new potassium fertilizer 150 kg/hm2 had good performance in the dry matter accumulation, yield, potassium absorption and potassium utilization efficiency of peanut, and it was good in increasing the oil content, total soluble sugar content and reducing the total acidity of peanut; the dosage of the new potassium fertilizer 75 kg/hm2 could effectively improve the protein content of peanut; and the dosage of the new potassium fertilizer 300 kg/hm2 showed the best performance in increasing the vitamin C content of peanut, and the highest potassium supply level(available potassium)and the highest potassium supply potential(slow-acting potassium)in the soil in the current season. On the whole, when the dosage of the new potassium fertilizer was 150 kg/hm2, it had the best effect on improving the yield, quality and soil potassium uptake and utilization of peanut.

Key words: potassium, peanut, yield, quality, potassium uptake

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