Effects of Bio-organic Fertilizer on Growth,Yield and Soil Properties of Greenhouse Vegetable
Taking'Shanghaiqing'as the object,the effects of 4 different types of bio-organic fertilizer on the yield,quality and soil properties of greenhouse vegetable were studied to determine the best bio-organic fertilizer type suitable for promotion in Yuhang district,Hangzhou.The results showed that the application of bio-organic fertilizer could promote the growth of green vegetable,increase chlorophyll concentration,improve agronomic traits and increase biological yield.Compared with the control group,the application of Original bio-organic fertilizer had the best effect on promoting growth and increasing yield,with plant height,leaf number,root length and biological yield increased by 19.1％,11.7％,27.7％and 9.2％.Senjing bio-organic fertilizer had the second effect,which increased plant height,leaf number,root length and biological yield by 16.0％,14.5％,17.5％and 6.6％.In addition,the application of bio-organic fertilizer could enhance soil organic matter and nutrient content.The contents of organic matter,alkali-hydrolyzed nitrogen,available potassium and available phosphorus were increased by 6.7％,18.4％,4.9％and 2.2％,respectively.Among them,the application of Tanggu bio-organic fertilizer had the largest increase in soil alkaline hydrolyzed nitrogen and available potassium,and the application of Zhinong bio-organic fertilizer and Original bio-organic fertilizer had the largest increase in soil organic matter content.Based on the above results,the Original bio-organic fertilizer and the Senjing bio-organic fertilizer could be used as the advantageous fertilizers for demonstration and popularization in the greenhouse vegetable in this region.
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