Effect Of Maggot-organic Fertilizer On Soil Environment And Crop Growth

The research regarded winter wheat as the instruction crop, study of the effects of maggot-organic fertilizer on crop growth ,the living nature amount of living beings of soil, properties of physics and chemistry of soil, and agricultural product quality were conducted through field experiment and laboratorial analysis in 2005,2006 and 2007. The main results of the test are as follows:1 With the application of maggot-organic fertilizer, the pH value of soil is decreased in different degree and the physicochemical characters are improved.2 Maggot-organic fertilizer can improve the growth environment of soil microorganisms and increase the number of soil microorganisms. It can promote the multiply of soil microorganisms by improving the status of winter wheat nutrition and rhizosphere environment of soil.3 Soil enzyme activity are improved by applying maggot-organic fertilizer. The soil hydrogen peroxidase, urease and phosphatase activities are increased obviously.4 Applying maggot-organic fertilizer increased soil nutrient content, the content of organic matters, total and available nutrients are increased obviously. Among the maggot-organic fertilizer treatments, the content of organic matters, total and available nutrients are improved with increasing maggot-organic fertilizer in fixed range.5 Maggot-organic fertilizer has a significant effect on the growth and yield of crop. The results of field experiments indicate that long-term application of maggot-organic fertilizer, can improve the capacity of nutrient supplying in soil. Bounteous nutrient supplying can promote the growth of crop and established the high-yield foundation.6 Maggot-organic fertilizer significantly can increase mineral nutrient content of agricultural products. The results of agricultural products' quality indicate that the content of N, P, K, Ca, Mg, Zn, Fe, Mn and crude protein are enhanced in different degree.7 The available nutrient results show that soil nutrient content kept at a much higher level in different growth stage, maggot -organic fertilizer treatments provide more adequate nutrient in important growth period.The results show that maggot-organic fertilizer can improve soil biodiversity and microorganisms. The maggot-organic fertilizer can optimize soil biology growth environment, meanwhile, it also can create good environment for crop growing, promote the matter changing speed. In the crop growth period maggot-organic fertilizer can afford the plant necessary nutrient in time, enhance crops growth and physiological metabolisms, which result in improvement of crop yield and quality remarkably.