黄河宁夏灌区蓖麻田间群体动态控制研究  

Study on the Population Dynamic Control in Ricinus Communis Field in Ningxia Yellow-river Irrigating Region

作　　者：孙玉兰 于荣[2] 

机构地区：[1]宁夏农业学校,宁夏银川750002 [2]宁夏职业技术学院,宁夏银川750002

出　　处：《内蒙古农业科技》2010年第3期52-53,共2页Inner Mongolia Agricultural Science and Technology

基　　金：宁夏"十五"科技攻关项目"平罗县万亩蓖麻基地建设研究与示范"

摘　　要：试验针对黄河宁夏灌区生态气候和生产条件,通过对蓖麻不同种植密度、不同整枝方法,以及蓖麻的生长发育情况进行观测,就栽培蓖麻的田间群体动态对个体发育及产量的影响进行了探讨。研究结果表明,随着密度加大,蓖麻株高、主穗位高度增加,而茎粗、穗长、有效分枝数、有效果穗数等有所降低。高密度下不利于蓖麻个体的良好发育,从而影响了蓖麻单株的经济性状,最终影响产量;但密度若是太小,则又会影响单位面积的收获穗数,不利于单位面积产量的提高。因此,适宜的蓖麻种植密度为784株/667m2,其株行距为85cm×100cm。Planting density,pruning method,growth and development about planting caster have been studied in this trail based on the climate and cultivation condition of Ningxia irrigation area.The results are height and main spike height of caster increase,but stem diameter,spike length and effective number of branches and spike decrease with high density of planting caster.It means that high density effect caster on individual development and economic yield which are affected by lower density.So the appropriate planting density of caster is 784 /667m^2,planting distance is 85cm×100cm.

关 键 词：蓖麻 密度 群体动态 产量 

分 类 号：S565.6[农业科学—作物学]