黑龙江省秸秆还田技术模式及可行性分析

中国是农业大国，也是秸秆资源最为丰富的国家之一。农作物秸秆数量大、分布广，富含有机质和氮磷钾等多种养分，是重要的可再生生物资源。全国每年生产秸秆8亿多t，而直接还田部分仅占10％。黑龙江省是农业大省，秸秆资源十分丰富，但还田量仅占3％，秸秆还田的潜力很大。本文通过对中国秸秆直接还田技术的综述分析，针对黑龙江省气候特点，提出相应的秸秆还田技术模式，并分析其技术推广的可行性和效益预测。

Technology model of straw returning and feasibility analysis in Heilongjiang Province

China is a large agricultural country, The number of crop straw is large and distributed is also one of the most rich of straw resource countries. widely, also rich in organic matter and N P K and other nutrients, that is an important renewable biological resource. The national annual production of straw over 800 million tons, but returning field directly part of only 10%. Heilongjiang Province is a major agricultural province, straw resource is very rich, but to returning field only 3 % which it have great potential for straw. In this paper, through the overview analysis of the straw directly to field in China and climatic characteristics of Heilongjiang Province, the technology model of straw returning is put forward, and the technical feasibility of promoting and efficiency of forecasts are analvzed.