摘要
连续十年的定位试验结果表明，周年淹水能明显提高稻田的有机质含量和氮素营养水平。在相同施肥水平，冬水田水稻单产10年平均两季田增产15．6％──20．0％。这表明冬水田确实具有自营培肥省肥高产的功能。这一研究结果，对客观评价四川盆地丘陵区冬水田存在价值及其合理利用，在生产上和学术上均具有重要意义。
The results of long term (10 years) experment show that it is veryobvious to increase the content of organic matter and nitrogen in waterloggedfiels during ten years. As the same of fertilizer. the average yield of rice inwaterloggod field is more than 15. 6-20. o0% in paddyupland rotation field, whichshows the waterlogged field has a function to save fertilizer and cultivatefertilizer by itself. If is significance in agricultural production and sciencesto keep certain region rationally utilizing the waterlogged field in purplehill area in the Sichuan Basin.
出处
《四川农业大学学报》
CSCD
1996年第3期317-320,357,共5页
Journal of Sichuan Agricultural University
