期刊论文、会议论文

中文

作物研究

1001-5280

2019

33

5

408-414

国际(长沙)农田生态种养发展论坛

国际(长沙)农田生态种养发展论坛论文集

2019-09-06

长沙

湖南省作物学会<&wdkj&>湖南农业大学

10.16848/j.cnki.issn.1001-5280.2019.05.15

国家重点研发计划项目(2018YFD0301003) 湖南省重点研发计划项目(2017NK2280).

本校为第一机构

设置头季稻+鱼（或泥鳅）+再生稻的栽培模式,水稻品种选用黄华占和Y两优800,分析两种模式下土壤中全量氮、磷、钾含量与速效氮、磷、钾含量表现,结果表明:（1）稻鱼模式和稻鳅模式可增加土壤中全效养分含量,全氮、全磷、全钾含量在整个生育期内维持在一个相对稳定的状态,其中以稻鱼处理效果更明显,总体高于对照田。头季稻与再生季两个生育季内全氮、全磷处于相对稳定的状态,全钾含量则在再生季略有下降;（2）稻鱼模式和稻鳅模式提高了土壤中速效养分含量,孕穗期、灌浆期、成熟期含量比分蘖期时有所提升,稻鱼模式下土壤速效养分含量整体表现要高于稻鳅模式。两个水稻品种再生季的土壤速效养分含量...

By setting the cultivation patterns of the first season rice + fish ( or loach )+ ratoon in grice, using two common rice varieties Huanghuazhan and Y Liangyou 800,the contents of total nitrogen.phosphorus and potassium in the soil and the available nitrogen .phosphorus and potassium contents in the two models were analyzed. The results showed that ( 1) Rice-fish model and rice-loach mode can increase the total nutrient content in soil.The content of total nitrogen. total phosphorus and total potassium in soil maintains a relatively stable state during the whole growth period, and the effect of...