关键词: 花生, 施肥模式, 钙, 锌

Abstract: In order to explore the improvement of Ca and Zn nutrition of peanut plants in southern paddy soil by different fertilization modes, the large seed variety Xianghua 2008 and southern paddy soil were used as research objects,this paper set 7 different fertilization modes (T1: No fertilizer; T2: Compound fertilizer 750 kg·hm-2; T3: Compound fertilizer 375 kg·hm-2; T4: Compound fertilizer 375 kg·hm-2+ rhizobium; T5:Compound fertilizer 375 kg·hm-2+ rhizobium + calcium fertilizer ; T6: Compound fertilizer 375 kg·hm-2+ rhizobium + zinc fertilizer; T7:Compound fertilizer 375  kg·hm-2+ rhizobium + calcium fertilizer + zinc fertilizer), and used ridge and film cultivation to study the effects of different fertilization modes on Ca and Zn content, accumulation and pod distribution coefficient of peanut organs. The results showed that: the single application of calcium fertilizer and zinc fertilizer significantly increased the Ca and Zn content in peanut roots, stalks, leaves, gynophores, and pods, up to 53.42% and 41.57%, respectively; With the simultaneous application of calcium and zinc fertilizers, except for the reduction of the corresponding Ca and Zn content, accumulation, and pod distribution coefficient of some organs, the rest of the organs were improved compared to those without calcium fertilizer and zinc fertilizer. The maximum Ca and Zn accumulation increased by 48.66% and 49.55%, respectively, the Ca and Zn distribution coefficient of pods reached 0.080 and 0.180, respectively, and the differences between treatments were significant. There was a synergistic absorption relationship between Ca and Zn accumulation and distribution coefficient between the calcium treatment and the zinc treatment. It had accelerated the enrichment of Ca and Zn to the pods, expanded the "storage capacity", and increased the utilization of fertilizers. It laid the foundation for high yield of peanut and provided theoretical basis for high yield and high efficiency cultivation of peanut in paddy soil in the south.

Key words: peanut, fertilization mode, calcium, zinc