4种缓释肥对香石竹生长和开花的影响

摘要

针对我国香石竹种植中普通化学肥料养分利用率较低、多次追肥费时费工等问题,以香石竹"马斯特"品种为试验苗,采用常规施肥为对照,选用4种缓释肥开展缓释肥料的香石竹生长与开花影响的研究.结果表明:施用美乐棵缓释肥的香石竹的株高、叶面积、花蕾、花冠和切花产量均显著高于常规施肥和其他施肥处理(P<0.05),切花产量达144.17万支/hm2,高常规施肥3.4%,奥绿肥效果次之,其他缓释肥与常规施肥差异不显著.因此,可以以一次基施的形式施用美乐棵缓释肥代替多次追肥的常规化学肥料,以满足香石竹生长与开花的需要.%Aiming at several problems in the planting of carnation in China, such as low nutrient utilization rate of ordinary chemical fertilizer, and more time and more labor spent in many-times topdressing, we studied the effects of applying four kinds of slow-release fertilizer on the growth and blossoming of carnation variety"Master"by using the ordinary chemical fertilizer ap-plication as the control. The research results indicated that: applying Meileke slow-release fertilizer obtained significantly higher plant height, leaf area,flower-bud number,corolla number,and cut flower yield of carnation than the control and other fertiliza-tion treatments(P<0.05), and the cut flower yield reached 1.4417×106branch per hm2,which was 3.4% higher than that in the control;the effect of applying Aolv slow-release fertilizer ranked the second;the effect of applying other kinds of slow-release fer-tilizer was not significantly different from that of the control. Therefore,the single basal application of Meileke slow-release fertil-izer could be used to replace the many-times topdressing of ordinary chemical fertilizer,in order to meet the demand of carnation growth and blossoming.