刈割对糜子生长及产量的影响  

Effect of Cutting on Growth and Yield of Broomcorn Millet

作　　者：李子威 张东杰 吾买尔夏提·塔汉[1] LI Ziwei;ZHANG Dongjie;Wumaierxiati Tahan(College of Life Sciences,Xinjiang Agricultural University,Urumqi Xinjiang 830052)

机构地区：[1]新疆农业大学生命科学学院,新疆乌鲁木齐830052

出　　处：《现代农业科技》2024年第2期90-93,共4页Modern Agricultural Science and Technology

基　　金：国家自然科学基金(31760083)。

摘　　要：为了探明刈割对糜子生长及产量的影响,本文开展了苗期和拔节期刈割试验。结果表明,不同时期和位置刈割,糜子的根干重、秆干重、穗干重、株高、茎粗、主茎节数、叶长、叶宽、主穗长、单株分枝数、单株有效穗数和单株分蘖数均出现不同程度的变化。其中,植株6叶1心时余下基2叶刈割,糜子生长至成熟期获得的生物量最大,为本次试验中的最佳刈割时期和位置。表明在恰当的时期和位置进行刈割处理可以刺激植物体的冗余和补偿效应,达到增加糜子地上部分生物量的效果。In order to investigate the effect of cutting on the growth and yield of broomcorn millet,this paper conducted cutting experiments during the seedling and jointing stages.The results showed that the root dry weight,stem dry weight,panicle dry weight,plant height,stem diameter,number of main stem nodes,leaf length,leaf width,main panicle length,number of branches per plant,effective panicle number per plant,and tiller number per plant of broomcorn millet all showed varying degrees of changes when cut at different stages and positions.When the plants had 6 leaves and 1 heart,the base 2 leaves were left and orther parts were cut,the biomass of broomcorn millet at mature stage was the largest,which was the optimal cutting stage and position in this experiment.It indicated that cutting at the appropriate stage and position could stimulate plant redundancy and compensatory effects,and increase the aboveground biomass of broomcorn millet.

关 键 词：糜子 刈割时期 刈割位置 产量 

分 类 号：S516[农业科学—作物学]