秸秆还田条件下不同种植方式对土壤养分的影响  

Effects of Different Plant Methods with Straw Retained on Soil Nutrients

作　　者：龚万涛[1] 何瑞银[1] 马建永[1] 宋春莲[2] 邢全道[1] 

机构地区：[1]南京农业大学工学院,南京210031 [2]江苏省黄海农场农业服务中心,盐城224624

出　　处：《科学技术与工程》2012年第8期1737-1739,1744,共4页Science Technology and Engineering

基　　金："十一五"国家科技支撑计划(2007BAD89B12);公益性行业科技专项(200803028)资助

摘　　要：为了探明秸秆还田条件下不同种植方式对土壤养分的影响,设计了4种处理方式:新型旱直播(NDD),常规旱直播(CDD),水直播(DW)和机插秧(MT)。数据分析表明,NDD对土壤有机质、碱解氮、速效磷、速效钾含量的增长效果最显著,CDD对土壤全氮含量的增加效果最明显。研究表明,新型旱直播对于土壤养分的综合提高效果是最优的。To determine the effect of different plant methods with straw retained on soil nutrients, 4 treatments were designed, including new direct seeding on dry field（ NDD）, conventional direct seeding on dry field （CDD） , direct seeding on waterish field（DW） and machine transplanting（MT）. The results showed that NDD is better in growth of soil organic matter, available nitrogen, available phosphorus and available potassium, and CDD is better in growth of total nitrogen. Results of this study indicated that the new direct seeding on dry field in improving soil nutrients is optimal.

关 键 词：新型旱直播 常规旱直播 水直播 机插秧 秸秆还田 土壤养分 

分 类 号：S153.6[农业科学—土壤学]