Study On The Offect Of Biology And Environment Of Urban Waste Compost And Its Compound Fertilizers Used In Wheat And Maize Planting

Many studies indicate urban waste compost can improve soils fertility. However, it contains heavy metal and other poisonous substances, this affects its application in agriculture. Urban waste compost used as fertilizer for lawn has been little reported in China till now. If waste compost and its compound fertilizers which are used for lawn growth, can not only solve waste compost outlet problems, but also promote urban lawn development.Comprehensive reaching and a series of test and alteration was done on the urban waste compost of Nangong waste compost factory of the No.2 cleanness vehicle field first of all and five kinds of waste compound fertilizer were made. The different treatments of manure quantity(CK, low, middle, high,superhigh) and means(basic manure, basic manure+a equalize manure, basic manure+two equalize manure) used of manure of spring wheat potted plant experimentation, summer maize planted iron frame experimentation and winter wheat planted iron frame experimentation were done . The study analyzed the effect of urban waste compost and its compound fertilizers to the procreation character and yield character of wheat and maize and physical and chemical properties of tested soils and overground and underground water environment, founded regression model between fertilization quantity and yield of summer maize winter wheat, and selected the best compound fertilizers(compound fertilizers 1), then especially researched the feasibility of using compound fertilizers 1 in agriculture production. Leaching characteristics and environmental effects of the soil of the best treatment under different rainfall intensity(90mm/h, 120mm/h) and duration (30 minutes,60 minutes,90 minutes ) were studied.This study mainly reported the effect of urban waste compost and its compound fertilizers used in spring wheat potted plant experimentation, summer maize planted iron frame experimentation and winter wheat planted iron frame experimentation. The results indicated: urban waste compost and its compound fertilizers could improve soil physical feature, alter soil heavy clay character. At the same time, it could enhance soil properties, such as contents of organic matter, total N, total P and available N. It could improve soil fertility obviously. The soil fertility was improved highest under compound fertilizer 1 treatment.Urban waste compost and its compound fertilizers could more enhance the procreation character of maize seedling than chemical fertilizer, and shortened procreation period(maturation aheaded 7 days compared with chemical fertilizer ),and have evidence predominance compared with chemical fertilizer in improving the procreation character and yield character of wheat and maize. The Nitrogen Uptake Efficiency(NUpE) was the source of the Nitrogen Use Efficiency(NUE) more important than the Nitrogen Uptake Efficiency(NUpE), and which affected the Nitrogen Use Efficiency(NUE) prominently and directly when urban waste compost and its compound fertilizers used in maize planting. But the effect of the Nitrogen Uptake Efficiency(NUpE) on the Nitrogen Use Efficiency(NUE) would enhance with the increase nitrogen level. The biology effect, fertility effect and yield effect of wheat and maize of urban waste compound fertilizers 1 was the best in spring wheat potted plant experimentation, summer maize planted iron frame experimentation and winter wheat planted iron frame experimentation.According to growth characteristic and characteristic of manure requirement, considering zoology domino offect and environment domino offect of urban waste compost and its waste compound fertilizer, the regress modeles of between the quantity of fertilization and yield and between the quantity of fertilization and economy benefit of maize were founded, the logical across interzone of high yield and high economy benefit and the regress modeles between the quantity of fertilization and yield were founded. The logical quantity of fertilization of urban waste compost and its waste compound fertilizer in order to carrying out the scientific and...