节点文献
化肥减量配施生物有机肥对辣椒产量及土壤微生物的影响
Effect of Fertilizer Reduction Combined with Biological Organic Fertilizer Application on Pepper Yield and Soil Microorganisms
【摘要】 为了促进辣椒植株生长,增加辣椒产量,试验设置空白对照(T1)、常规施肥(T2)、灭活生物有机肥+常规施肥减量10%(T3)、生物有机肥+常规施肥减量10%(T4)4个处理,探索化肥减量配施生物有机肥对辣椒产量及土壤微生物的影响。结果表明:T4能显著提高辣椒的株高、果长、果宽和单果重,产量为15 444.9 kg/hm2,比T1、T2、T3分别增产125.1%、13.3%、16.1%。4个处理的纯收益在9 188.7~30 104.7元/hm2之间,其中以T4纯收益最多。T4土壤细菌数量显著高于其他3个处理,施肥50 d后,土壤中细菌数量达到最大值;T4土壤中放线菌的数量施肥25 d后达到最大值,显著高于T1、T2,与T3差异不显著,施肥50 d后4个处理土壤中的放线菌数量均降低;施肥25和50 d后,T4土壤中真菌的数量均低于其他3个处理。上述结果表明T4对辣椒的生长发育有促进作用,能增加辣椒产量和纯收益,增加土壤细菌和放线菌的数量,减少土壤有害真菌的数量。
【Abstract】 In order to promote the growth of pepper plants and increase the yield of pepper, the effects of fertilizer reduction combined with biological organic fertilizer application on pepper yield and soil microorganisms were studied. Using the method of plot experiment,four treatments were set: blank control(T1), conventional fertilization(T2), inactivated biological organic fertilizer + conventional fertilization reduction by 10%(T3), biological organic fertilizer + conventional fertilization reduction by 10%(T4), and each treatment was repeated 3 times. Results showed that T4 could significantly increase plant height, fruit length, fruit width and single fruit weight of pepper. The yield of T4 was 15,444.9 kg/hm2, 125.1%, 13.3% and 16.1% higher than that of T1, T2 and T3, respectively. The net incomes of the four treatments ranged from 9,188.7 to 30,104.7 yuan/hm2, among which T4 had the highest net income. The number of soil bacteria in T4 was significantly higher than that in the other three treatments, and the number of soil bacteria reached the maximum 50 days after fertilization. The number of soil Actinomycetes in T4 reached the maximum value 25 days after fertilization, which was significantly higher than that in T1 and T2, but not significantly different from that in T3. The number of Actinomycetes in the four soil treatments decreased 50days after fertilization. The number of soil fungi in T4 was lower than that in the other three treatments 25 and 50 days after fertilization.The above results demonstrate that T4 can promote the growth and development of pepper, increase the yield and pure income of pepper,increase the numbers of bacteria and Actinomycetes, and reduce the number of harmful fungi in the soil.
【Key words】 biological organic fertilizer; pepper yield; chemical fertilizer reduction; soil microorganisms;
- 【文献出处】 湖南农业科学 ,Hunan Agricultural Sciences , 编辑部邮箱 ,2023年08期
- 【分类号】S641.3;S154.3
- 【下载频次】26