摘要
为明确绿肥与稻草联合还田对机插双季稻生长发育和产量的影响及其机理,以中嘉早17和H优518为试验品种,于2013-2014年进行了不施肥(CK)、不施肥+绿肥还田+稻草还田(CK+GM+RS)、单施化肥(NPK)、化肥+绿肥还田+稻草还田(NPK+GM+RS)机插双季稻大田试验。结果表明,不论CK还是NPK模式下,GM+RS处理均能够促进水稻生长,显著提高机插双季稻的产量;与NPK相比,NPK+GM+RS处理显著增加了早、晚稻的有效穗(增幅1.75%和1.51%)、每穗粒数(增幅1.82%和1.46%)和产量(增幅5.39%和2.56%),显著增加了成穗率(增幅10.44%和2.07%)、总干物质量(增幅5.69%和7.01%)、成熟期叶面积指数(增幅5.10%和7.10%)以及抽穗至成熟期群体生长率(增幅5.21%和4.51%)。综上所述,绿肥与稻草联合还田能够促进机插水稻生长前期分蘖早发,改善生长中后期群体质量,最终显著提高机插双季稻产量。
In order to clarify the combined application of green manure cultivation and rice straw on the growth and yield formation of machine-transplanted double-season rice taking Zhongjiazao 17 and Hyou 518 as the experimental materials,an experiment was carried out during 2013-2014 with 4 treatments of different cultivation practices namely,(i)CK,no fertilizer;(ii)CK+GM+RS,no fertilizer with green manure cultivation and rice straw return;(iii)NPK,single fertilizer,(iv)NPK+GM+RS,fertilizer with green manure cultivation and rice straw return.The results showed that compared with CK and NPK,the treatment of GM+RS could promote rice growth and significantly increase yield of machine-transplanted double-season rice.Compared to NPK,the treatment of NPK+GM+RS also significantly increased paniclees number,grains per panicle,yield,ratio of productive tillers to total tillers,total of dry matter accumulation,LAI and CGR of MS in early and late rice by 1.75% and 1.51%,1.82% and 1.46%,5.39% and 2.56%,10.38% and 2.08%,5.69% and 7.01%,5.10% and 7.10%,5.21% and 4.51%,respectively.Therefore,the combined application of green manure cultivation and rice straw return could promote the early tillers during the early growth stage,and improve population quality in the middle and late growth stages of rice and so that the yield of machine-transplanted double-season rice could be significantly increased.
作者
才硕
时红
潘晓华
徐涛
谢亨旺
刘方平
曹娜
CAI Shuo;SHI Hong;PAN Xiao-hua;XU Tao;XIE Heng-wang;LIU Fangping;CAO Na(Jiangxi Key Laboratory of Agricultural Efficient Water-Saving and Non-Point Source Pollution Preventing,Jiangxi Central Station of Irrigation Experiment,Nanchang 330201,China;Collaborative Innovation Center for the Modernization Production of Double Cropping Rice,Jiangxi Agricultural University/Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Ministry of Education/Jiangxi Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Nanchang 330045,China;East China University of Technology,Nanchang 330013,China)
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2019年第4期631-640,共10页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家“十二五”科技支撑计划(2013BAD07B12)
长江科学院开放研究基金资助项目(CKWV2016400/KY)
江西水利科技项目(KT201430,KT201502,KT201630)~~
关键词
绿肥
稻草
机插双季稻
生长特性
产量
green manure
rice straw
machine-transplanted double-season rice
growth characteristics
yield
