Introduction
With the development and perfection of market economy, the agriculture and rural economy is coming
a new stage and the people lives in plenty, so there is a h igh requirements in agricultural products’ quality
safety. There are three modes of p roduction in China: organic, pollution-free and conventional patterns
and the people favor the organic food [1]. There are some differences between organic system and
conventional patterns, for example growth vigor, yield, economic benefit of plant, soil organic matter and
microbial content [2, 3]. Moreover, the reasonable use of organic manure can improve soil fert ility and