花生根瘤菌与钼、硼复配的初步研究

Primary Study on Co-inoculum of Peanut Bradyrhizobium and Molybdate and Boron

摘要:

针对四川花生主产区土壤缺硼、钼现状和花生对硼、钼的需肥特性，研究根瘤菌与Mo、B复配的可行性。供试慢生花生根瘤菌Spr2-9、Spr4-5耐硼、钼试验结果表明，根瘤菌耐硼能力远低于耐钼能力。“根瘤菌+Mo+B”复合菌肥研制试验表明：根瘤菌不宜与硼复配，宜与Mo复配，与钼复配的适宜最高钼浓度以0.4%为宜。

Abstract:

Aiming at molybdate and boron deficient acid purple soil from main peanut cultivated areas in Sichuan, and Mo and B requirement of peanut growth，the feasibility of Co-inoculum of peanut Bradyrhizobium and molybdate and boron was studied. The tolerance to molybdate and boron of the tested strains Spr2-9, Spr4-5 was inspected. The result indicated that the two tested strains could tolerate higher concentration of molybdate than that of boron. The compound inoculum of Bradyrhizobial strain and trace element Mo was developed. The optimum concentration of Mo was 0.4%.