生物有机肥对鲜食玉米产量、土壤养分及微生物的影响

为了研究生物有机肥对鲜食玉米的产量、土壤养分及微生物数量的影响,以鲜食玉米‘中科糯甜99’为试材,采用田间试验的方法,调查了施用生物有机肥后鲜食玉米的农艺性状和产量,检测了土壤的养分含量和微生物数量。结果表明,施用生物有机肥显著降低了土壤的pH,分别比对照减少4.9%~6.8%;提高了土壤的养分含量,有机质、碱解氮、有效磷和速效钾含量分别比对照增加了5.4%~9.8%、4.9%~11.6%、6.7%~19.2%和4.9%~19.4%;增加了土壤微生物的数量。施用生物有机肥增加了玉米的株高、穗长、穗粗、穗行数、单穗重、行粒数和鲜百粒重,产量分别比对照增加了8.5%~16.5%。生物有机肥不但可以增加土壤养分含量和微生物数量,培肥地力,还能促进鲜食玉米生长,提高其产量。

Bio-organic Fertilizers: Effects on Fresh Corn Yield,Soil Nutrients and Microbes

To study the effects of bio-organic fertilizers on the yield of fresh corn, soil nutrients and microbe quantity, fresh corn 'Zhongke nuotian 99' was used as material, the agronomic traits and yield were investigated by field experiment, and the nutrient content and microbe quantity of soil were detected. The results showed that soil pH was significantly decreased by 4.9%-6.8% compared with the control, along with the application of bio-organic fertilizer. The soil nutrients were increased obviously, and the contents of organic matter, alkaline nitrogen, available P and available K were increased by 5.4%-9.8%, 4.9%-11.6%, 6.7%-19.2% and 4.9%-19.4% respectively. The number of soil microbes was also increased. The corn height, ear length, ear diameter, ear row number, single ear weight, kernel number per row and 100-seed weight were increased with the application of bio-organic fertilizer, and the yield were also increased by 8.5%-16.5% compared with the control. Bio-organic fertilizer not only increases the soil nutrients, the quantity of microbes and soil fertility, but also promotes the growth and yield of fresh corn.