Effects of Earthworm in Situ Treatment of Cow Dung to Produce Earthworm Manure on Tomato Yield and Soil Improvement in Greenhouse
In this study,the effects of earthworm in situ treatment of cow dung to produce earthworm manure and conventional organic fertilizer treatment on tomato yield and soil improvement were compared,provide the basis for the sustainable development of facility vegetables.Two to-mato varieties were used as materials,earthworm and cow dung were directly inoculated on the ridge after harvesting vegetables in the previous greenhouse,the physical and chemical properties of soil and the yield and quality of tomato were analyzed.The results showed that,reasonable temperature and humidity control could create the living environment of earthworms,earthworm in situ treatment of cow dung to produce vermi-compost could reduce soil bulk density(P<0.05),the number of water-stable macroaggregates was increased(P<0.05),mainly concentrated between 2.0 mm≤Ф<3.0 mm and 0.5 mm≤Ф<1.0 mm.There was no significant difference in the effect on soil total salt content(P>0.05),the effects on different base cations were different due to different varieties.There was no significant difference in soil microbial content(P>0.05). The tomato yields of the two varieties were increased by 14.4％ and 24.7％,respectively.However,the effect on the quality of tomato was dif-ferent due to different varieties.In summary,the in-situ treatment of cow dung by earthworms to produce earthworm manure could significantly increase the yield of greenhouse tomatoes and significantly improve the physical indicators of the soil. It was recommended to use this method under the condition that there are earthworm farms around the facility agriculture.
万方数据
维普
