摘要
为探究不同秸秆腐熟剂对沿黄稻区稻田秸秆还田效应的影响,提高秸秆还田利用率,以桶栽试验研究了秸秆还田条件下10种秸秆腐熟剂对水稻抽穗期和成熟期的群体质量指标、土壤有机质、土壤全氮、土壤碳氮比、产量及其构成要素的影响。结果表明,10种秸秆腐熟剂均能显著增加分蘖期土壤全氮含量、降低土壤的碳氮比,多数秸秆腐熟剂能加快稻田秸秆腐熟速率、提高水稻花后作物生长率、增加抽穗期和成熟期地上部干物质量、叶面积指数和株高,进而增加水稻的单株产量,增产幅度为2. 41%～38. 35%。其中,HW,JD 2和JBS等3种秸秆腐熟剂处理后形态和生理指标改善较大、增产效果较好,单株产量与对照相比分别增加了38. 35%,32. 33%和25. 24%。因此,沿黄稻区秸秆腐熟剂选用HW,JD 2和JBS效果为佳。
To investigate the effects of the different straw decomposing inoculants on returned straw in the paddy field along Yellow River and improve the use efficiency of returned crop residues into soil,a barrel cultivated experiment was conducted.The population quality index,soil organic matter content,soil total nitrogen,soil C/N,yield and its components characteristics were analyzed at heading and maturity stages by using 10 straw decomposing inoculants.The results indicated that the 10 straw decomposing inoculants significantly increased the soil total nitrogen and reduced the soil C/N at tilling stage.Most of the straw decomposing inoculants could improve the decomposition rates of crop residues and crop growth rates.Above-ground dry matter,leaf area index,and plant height at heading stage and maturity stage with were also increased,and resulted in enhancements of the yield of individual rice plant with 2.41% to 38.35%.Among these straw decomposing inoculants,three straw decomposing inoculants,including HW,JD2 and JBS,showed the highest improvement of morphological and physiological indexes,and the best yield for individual rice plant.Specifically,the yield per individual plant could increase by 38.35%,32.33% and 25.24% compared with those of control.Therefore,HW,JD2,and JBS were the best and optimal straw decomposing inoculants applied in the paddy field along Yellow River.
作者
彭廷
张中南
王留行
金玉蔓
杜想想
王童童
王付山
黄松
赵全志
PENG Ting;ZHANG Zhongnan;WANG Liuhang;JIN Yuman;DU Xiangxiang;WANG Tongtong;WANG Fushan;HUANG Song;ZHAO Quanzhi(College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China;Seed Management Station of Tongbai,Henan Province,Tongbai 474750,China;Xinyang Agriculture and Forestry University,Xinyang 464006,China)
出处
《河南农业大学学报》
CAS
CSCD
北大核心
2019年第2期168-174,共7页
Journal of Henan Agricultural University
基金
国家重点研发计划项目(2016YFD0300900)
河南省水稻产业技术体系项目(S2012-04-02)
关键词
腐熟剂
秸秆还田
沿黄稻区
产量
土壤养分
straw decomposing inoculant
returned straw
paddy field along Yellow River
yield
soil nutrient
