摘要
为探讨种植密度和施氮量对矮秆紧凑型杂交糯高粱产量和品质的影响,采用裂-裂区试验设计,主区为高粱品种,设‘金糯梁1号’、‘机糯梁1号’2个处理;裂区为种植密度,设12万、13.5万、15万、16.5万株/hm^(2)4个处理;裂-裂区为施氮量,设75、120、165 kg/hm^(2)3个处理。收获期调查分析籽粒产量及相关性状、品质指标。研究表明,品种、密度和施氮量对籽粒产量与主要品质性状均影响显著。随着种植密度的增加,增加施氮量对产量的影响效应逐渐变小,适当增加矮秆紧凑型杂交糯高粱种植密度可以作为氮肥减施技术的有效途径。适宜增密减氮还可以有效提高高粱粗淀粉与单宁含量。
To study the effects of planting density and nitrogen application on yield and quality of dwarf compact hybrid glutinous sorghum,the split-crack zone design was adopted in the experiment,and the main zone was sorghum variety.Two treatments were set,which were‘Jinnuoliang No.1’and‘Munnuoliang No.1’.The split area was the planting density,and the planting density was divided into 4 treatments,which were 120000,135000,150000 and 165000 plants/hm^(2);the splitting zone was nitrogen application rate,and nitrogen application rate was divided into three treatments,which were 75,120 and 165 kg/hm^(2).The grain yield,related characters and quality indexes were examined and analyzed at harvest time.The results showed that:variety,density and nitrogen application had significant effects on grain yield and main quality.With the increase of planting density,the effect of increasing nitrogen application rate on yield decreased gradually.Appropriately increasing planting density of dwarf compact hybrid glutinous sorghum could be employed as an effective way to reduce nitrogen application.Densification and nitrogen reduction can also effectively improve the crude starch and tannin quality of sorghum.
作者
刘天朋
杨凯
陈琳
龙文靖
邓昊
孙远涛
向箭宇
倪先林
LIU Tianpeng;YANG Kai;CHEN Lin;LONG Wenjing;DENG Hao;SUN Yuantao;XIANG Jianyu;NI Xianlin(Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences/Sichuan Branch of National Sorghum Improvement Center,Luzhou,Sichuan 646000;Sichuan Langjiu Co.,Ltd.,Luzhou,Sichuan 646001)
出处
《中国农学通报》
2024年第4期1-5,共5页
Chinese Agricultural Science Bulletin
基金
四川省科技计划“绿色高效酿酒专用粮重大新品种培育”(2022ZDZX0016)
国家现代农业产业技术体系四川特色经作创新团队“高粱新品种选育及配套栽培技术研究与推广”(SCCXTD-2022-12)
四川省科技成果转移转化示范项目“优质高产酿酒高粱新品种郎糯红19号的示范与应用”(2022ZHCG0029)
德阳市科技计划“酿酒高粱新品种筛选及配套技术研究”(2022NZ024)。
关键词
种植密度
施氮量
矮秆紧凑型
产量
品质
planting density
nitrogen rate
dwarf compact
yield
quality
