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本试验旨在研究菌剂、沼液及其复配对玉米经济性状和产量的影响。用固氮芽孢杆菌W6、巴西固氮螺菌Yu62及固氮巨大芽孢杆菌C4这3种固氮菌分别接种,并与沼液复配后接种玉米,以及这3种固氮菌与解磷假单胞菌S20组成的的4种微生物复合菌剂单独或与沼液复配后接种玉米。结果表明:除百粒重外,单菌剂处理组、沼液处理组及二者复配处理组均较清水组在玉米经济性状及单产方面表现优良。各单菌剂处理组中,固氮巨大芽孢杆菌C4效果较佳,相对于清水处理组,干穗单产增产10.47%。沼液与菌剂配合使用处理玉米的效果要优于相应菌剂单独处理组及沼液处理组。其中,以沼液与菌剂固氮巨大芽孢杆菌C4复合使用效果最佳,相对于清水处理组而言,百粒重增加2.17%,干穗单产增产25.15%,籽粒单产增产12.47%,增产效果明显。沼液与菌剂固氮巨大芽孢杆菌C4复合使用可以促进玉米穗的发育及产量的增加。
The purpose of this experiment was to study the effects of microbial agents, biogas slurry and their compounding on economic traits and yield of corn. Three strains of Azotobacter such as Bacillus aureus W6, Azotobacter sp. Yu62 and Bacillus natto were respectively inoculated and maize inoculated with biogas slurry, and the three nitrogen-fixing bacteria and Pseudomonas aeruginosa S20 were composed Of the 4 microbial compound agents alone or with marsh fluid inoculated corn. The results showed that in addition to the 100-grain weight, the single-agent treatment group, the biogas slurry treatment group and the two combination treatment groups were superior to the Qingshui group in economic traits and yields of maize. In each single fungicide treatment group, the effect of Bacillus aureus C4 was better than the fresh water treatment group, and the dry ear yield increased by 10.47%. Biogas slurry and fungi used in conjunction with the treatment of corn is better than the corresponding agent alone treatment group and biogas slurry treatment group. Among them, biogas slurry and bacterium nitrogen-fixing Bacillus megaterium C4 compound effect best, compared with the water treatment group, the hundred weight increased 2.17%, dry ear yield 25.15%, grain yield increased 12.47%, the yield was significantly . Biogas slurry and bacterium nitrogen fixation Bacillus megaterium C4 can promote the development of corn ear and the increase of yield.