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为了明确玉米连作障碍的主要影响因子对苗期玉米生长的影响,模拟玉米连作过程可能的影响因子展开研究,结果表明低浓度的根系分泌物、腐解物、风干物、浸提液和苯甲酸对苗期玉米生长性状的影响不明显,但高浓度的根系分泌物、腐解物、风干物、浸提液和苯甲酸对苗期玉米生长性状的抑制作用较大。也就是说,随着玉米连作年限的增加,对苗期玉米生长的抑制作用越加明显。
In order to clarify the impact of the main influencing factors of continuous cropping obstacle on the growth of maize at seedling stage, the possible influencing factors of continuous cropping of maize were studied. The results showed that low concentration of root exudates, decomposed matter, air dried matter, extract and benzoic acid The effect on seedling growth was insignificant, but high concentration of root exudates, decomposed matter, air dried matter, extract and benzoic acid had a greater inhibitory effect on the growth traits of seedlings. In other words, with the increasing number of continuous cropping corn, the growth inhibition of seedling more obvious.