早稻秸秆还田配施腐熟剂对土壤理化性状及晚稻生产的影响  

Effect of Rice Straw Returning with Decomposing Inoculants on Soil Physico-Chemical Properties and Late Rice Yield

作　　者：黄秋玉 王才仁 袁箬裴 黄正安 欧小艳 

机构地区：[1]宜章县农业局,湖南宜章424200

出　　处：《湖南农业科学》2015年第1期45-47,共3页Hunan Agricultural Sciences

基　　金：2010~2012年湖南省土壤有机质提升试点补贴项目

摘　　要：以3种不同的秸秆腐熟剂为材料,通过田间小区试验,研究了早稻秸秆还田配施秸秆腐熟剂对土壤理化性状、晚稻生长发育及经济效益的影响。结果表明,腐熟剂能促进水稻秸秆前期快速分解,加快秸秆养分的释放;与未添加腐熟剂相比,添加了秸秆腐熟剂的处理土壤有机质、碱解氮、速效钾含量分别提高了0.2～0.3 g/kg、4～8 mg/kg、14.0～18.6 mg/kg,CEC值增加了0.2～0.4 cmol/kg;在早稻秸秆还田时添加腐熟剂,还可促进晚稻植株生长,使株高变高、有效穗增多、稻穗增长、结实率提高,增产效果显著,3种秸秆腐熟剂处理稻谷增产均在30 kg/667m^2以上,增产率达5%以上,扣除成本,平均可增收45.8元/667m^2。In order to understand the effect of early rice straw returning and decomposing inoculants added on physico-chemical properties of soil, the growth of late rice and economic benefits, the field experiment was carried out with 3 kinds of straw-decomposing inoculant as material. The results showed that the decomposition agent facilitated the rapid decomposition of rice straw at earlier stage and released nutrient from straw. After adding the decomposition agent, the contents of soil organic matter, available nitrogen and rapidly available potassium had improved 0.2～0.3 g/kg, 4～8 mg/kg and 14.0～18.6 mg/kg respectively, and the CEC increased 0.2～0.4 cmol/kg. There were many other advantages, such as improving the growth of late rice with higher plants, more effective ears bearings, longer ear of rice and advanced setting percentage, and having significant yield-increasing effect. The increase production of the 3 kinds of straw-decomposing inoculant was averagely over 30 kg/667m^2, with a rate of growth of over 5%. Taking out of the cost, there was a increment of45.8yuan/667m^2 averagely.

关 键 词：稻草还田 秸秆腐熟剂 效果 晚稻 

分 类 号：S38[农业科学—农艺学]