论文部分内容阅读
通过调查湖口、南昌、上高、泰和、兴国、余江县有机资源及其利用状况,量化分析相应区域有机资源利用情况,以此为基础衡量江西省有机资源量及其利用现状,总结存在问题,并提出建议。结果显示2007～2008年江西省年均作物秸秆产量1764.6万t,作物秸秆直接还田31.8%,间接还田12.0%,燃烧还田52.5%,其它用途3.8%;绿肥种植面积53.33万hm2,占总耕地面积的25.1%,年产鲜草1237.2万t,其中直接还田85.6%,间接还田14.4%;人畜禽有机肥料年产9074万t,还田利用比例64.7%,流失35.3%;江西省直接还田、间接还田、燃烧还田和其它利用四种秸秆利用方式,养分回收占施肥量的比例分别为9.9%、10.1%、22.9%和4.6%。深入研究高效秸秆还田技术,扩大绿肥种植面积,开发新型有机肥综合利用模式,平衡利用有机肥资源,有效提升江西省整体农田质量是今后研究的重要发展方向。
By investigating the utilization of organic resources in Hukou, Nanchang, Shanggao, Taihe, Xingguo and Yujiang counties and quantitatively analyzing the utilization of organic resources in the corresponding areas, the present situation of organic resources in Jiangxi Province and its utilization status were summarized and summarized Questions, and make suggestions. The results showed that the average annual crop straw production in Jiangxi Province from 2007 to 2008 was 17.646 million tons, that of crop straw returned directly to the soil was 31.8%, that of indirect return to soil was 12.0%, that of returning to the field was 52.5%, and that of other uses was 3.8%; that of green manure was 533,300 hm2 25.1% of the total cultivated area, with an annual output of 12.372 million tons of fresh grass, of which 85.6% are returned directly to the soil and 14.4% are indirectly returned to the field; 90.74 million tons are produced annually for organic manure and livestock and poultry, 64.7% In Jiangxi Province, the proportion of nutrient recovery to fertilizer application was 9.9%, 10.1%, 22.9% and 4.6%, respectively, for direct return to fields, indirect return to fields, burning and returning to fields and other utilization patterns of four kinds of straw. In-depth study of efficient straw returning technology, expanding the area of green manure, developing new comprehensive utilization of organic fertilizer, balancing the use of organic fertilizer resources, effectively improving the quality of farmland in Jiangxi Province is an important development direction in the future.