麦稻互套耕作下配施有机氮无机氮穗肥对水稻产量及其构成的影响  

Effect of Panicle Fertilizer Organic N Combined with Inorganic N on Yield and Yield Components of Rice under Condition of Wheat-Rice Intercropping

作　　者：刘建[1] 魏亚凤[1] 李波[1] 汪波[1] 杨美英[1] 薛亚光[1] 

机构地区：[1]江苏沿江地区农业科学研究所,江苏南通226541

出　　处：《江西农业学报》2016年第2期1-5,共5页Acta Agriculturae Jiangxi

基　　金：江苏省农业科技自主创新资金项目[CX(12)3040];国家科技支撑计划课题"长江三角洲集约农区循环生产技术集成研究与示范"(2012BAD14B12-3)

摘　　要：研究了麦稻宽窄行(40 cm+20 cm)互套耕作模式下配施有机N无机N穗肥不同处理对水稻产量及其构成因子的影响。结果表明:与常规施肥相比,单独施用有机N促花肥均表现出减产,而无机N与有机N促花肥配合施用的部分处理表现出增产,其中以处理A_6B_3(促花肥为1/2常规量的无机N肥+无机N常规量1.5倍的有机肥,保花肥为常规量无机N肥)的增产率最高,达4.60%;单施有机N促花肥的水稻单位面积穗数显著降低,而保花肥对其无显著影响;混施有机N无机N促花肥处理的每穗粒数显著增多,每穗粒数也随保花肥无机N量的增加而增多;结实率在不同促花肥处理间差异较小,而在不同保花肥处理间差异较大;单施有机N促花肥可以显著提高千粒重,施用1/2常规量的无机N保花肥可以获得最高的千粒重。According to inorganic ecological problems caused by excessive application of inorganic N along lower Yangtze river,the effect of panicle fertilizer organic N replace inorganic N on yield and yield components under the condition of wheat rice intercropping was studied. The results showed that there existed great influence on rice yield in different treatments of panicle fertilizer organic N replace inorganic N. Compared with the conventional fertilization,inorganic N and half spikelet promoting fertilizer amount and organic fertilizers N,Paul fertilizer application of conventional amount of inorganic N showed the maximum yield increasing effect,up to 4.60%. While using the single application of organic N fertilizer treatment and Sportak fertilizers treatment showed a reduction,reduction amplitude reached 2.74% ~ 22.40%. Using the single application of organic fertilizers,panicles per unit area decreased significantly,decrease of up to 5.33% ~ 8. 32%,the effect of preserving flower fertilizer was very small. The mixing inorganic and organic fertilizers increased grain number per panicle significantly,the paul fertilizer increased with the increasing of inorganic N. The seed setting rate of different treatments of spikelet promoting fertilizer existed small amplitude,and the different treatments of preserving flowers existed large amplitude. When using promoting processing N single application of organic fertilizers,1000-grain weight were significantly increased,the average rate of increase was 0.36 ~ 0.53 g,the half amount N by application of inorganic processing preserving flowers was significantly higher than that of inorganic N fertilizer amount and conventional treatment. the rice spikelet promoting fertilizer in the increasing application of organic N to reduce the application of inorganic N,to achieve the rice yield and increasing yield,which had important significance to control the excessive chemical N fertilizer application of intensive paddy rice high yield in South of China.

关 键 词：麦稻互套耕作 水稻 有机氮肥 无机氮肥 配施 产量 产量构成 

分 类 号：S511.062[农业科学—作物学]