摘要
为了探讨弱感光杂交稻‘元丰优86’高产栽培技术,运用最优设计,对其进行密度、施N量和施K量3项栽培措施研究,建立主要农艺性状、产量与3项栽培措施的回归模型,分析3项栽培措施对主要农艺性状和产量的影响。结果表明:提高施N量会延长全生育期;增加施K量会提高株高;提高密度会增加有效穗,增施K肥、N肥有效穗也会有所提高;提高密度和施N量都会减少每穗粒数;提高施N量结实率也会有所提高;对千粒重的影响微弱。影响产量的主要因素是施N量和施K量。并经微机模拟筛选出高产的优化措施,每公顷插18.05万~24.56万丛,施K2O 64.3~116.7 kg,施纯N 76.9~137.9 kg。
The paper aims to discuss the high-yield cultivation technique of weakly photosensitive hybrid rice’Yuanfengyou 86’,we studied 3 cultivation measures of planting density,levels of N and K fertilizer application for weakly photosensitive hybrid rice’Yuanfengyou 86’by using the optimum design,and established the regression models of main agronomic characters,yield and the 3 cultivation measures to analyze the effects of the measures.The results showed that:increasing N fertilizer application could prolong the whole growth period;increasing K fertilizer application could increase the plant height;increasing planting density could increase the effective panicle,increasing K and N fertilizer could also increase the effective panicle;increasing the planting density and N fertilizer application could decrease the grain number per panicle;increasing N fertilizer application could increase the seed setting rate,and the effect of the measures on 1000-grain weight was weak.The main factors affecting yield were N and K fertilizer application,and the optimum measures for high-yield were screened out by computer simulation,the average planting density was180.5-245.6 thousand clumps/hm2,the application of K2 O was 64.3-116.7 kg/hm2 and the application of pure N was 76.9-137.9 kg/hm2.
作者
刘珠
Liu Zhu(Shaxian Soil and Fertilizer Technique Promotion Station,Shaxian 365050,Fujian,China)
出处
《农学学报》
2020年第2期45-49,共5页
Journal of Agriculture
基金
福建省粮食产能区增产模式攻关与推广项目“水稻绿色高产高效创建专项”(闽财农指(2016)207号).
关键词
杂交稻
'元丰优86’
最优设计
效应分析
模拟选优
Hybrid Rice
’Yuanfengyou 86’
Optimum Design
Effect Analysis
Simulation Optimization
作者简介
刘珠,女,1966年出生,湖南新邵人,高级农艺师,本科,研究方向:植物营养与施肥。通信地址:365050福建省沙县长泰南路禹德大厦五楼土肥站,E-mail:smsxtfz@126.com。
