Effect of Straw-Return on Mitigation of C Emission from the Winter Wheat/Summer Corn System Based on Long-term Study
In order to assess the effect of straw-return on reduction of C emission from the winter wheat/summer corn cropping system, analysis was made based on a long-term experiment, which started from 1981 and sited at the Research station of the Dryland Farming Institute of Hebei Academy of Agricultural and Forestry Sciences in Hengshui, Hebei province in a fluvo-aqiic soil. For the expeiiment, a split-block design was applied, with main plot chemical N fertilizer, sub-plot corn straw and each had 4 rates: for chemical N fertilizer the 4 rates were 0, 90,180 and 360 kg ha1; for corn straw the 4 rates were 0, 2 250,4 500 and 9 000kg ha.While at a P2O5: N ratio 2: 3 P-fertilizer was applied. The experiment had three replicates and plot area 1/15ha. In this paper, only the two treatments with maximum straw rate and with no straw had been used to make comparison.
Junyong Ma Kejiang Li Caiyun Cao Chunlian Zheng
MOA Hengshui Fluvo-aquic Soil Ecological Environment Key Field Scientific Observation Station,Dryland Farming Institute of Hebei Academy of Agriculture and Forestry Sciences, Hengshui, 053000,Hebei Province, China
国际会议
北京
英文
35-36
2010-06-27（万方平台首次上网日期，不代表论文的发表时间）