关键词: 化学发光 测定 烟叶 总氮, 化学发光 测定 烟叶 总氮

Abstract:

Livestock farming is the main element of Beijing agricultural industry, forage shortage is the main factor that affects the further development of livestock farming. Maize silage have higher biomass yield and forage usage value, utilizing maize silage have important effects on alleviating the lack of forage. Utilizing and extending maize silage have great significance for increasing forage supply，decreasing the cost of production and promoting the development of livestock farming. The area of maize in Beijing is about 133,000 hectares, most breed is grain maize, the development of maize silage was not so fast, many grain maize varieties were utilized instead of maize silage, there were problems that included low biomass yield and valve of forage. In order to resolve the problems of forage shortage and the lagging utilization of maize silage, proposed some strategies, including achieving scaled planting and specialized service, resolving the problems of producing hybrids of maize silage, diversifying the maize silage varieties, enhancing the benefit of maize silage by the utilizing mode, improving the maize silage extending, supporting policy and the guidance of governments.