Abstract:

Maize silage can be utilized in the form of whole ensiling and cereal＆silage maize using, many breeds of maize silage have high biomass yields and grain yields, optimum of benefit will determine the value of extension and utilization. Researched and analyzed the differences of biomass yields of milky maturity ,grain yields of full maturity and economic benefit of maize silage Jingke 516 and Nongda 108 under different density, compared in synthesis, the economic benefit of whole ensiling are higher than the grain yields, the yields of silage maize Jingke516 in milky biomass and full maturity both were highest under density of 60000 palnts/hm2, in all the treats, the economic benefit was 7113.9Yuan/hm2 in milky maturity and 6947.7Yuan/hm2, the results of t test between milky maturity and full maturity were t=1.775，t0.05=2.571，t