酸枣直播建园苗木生长规律研究  

Growth Law for Establishing the Orchard of Direct Sowing Ziziphus jujuba var.spinosa Seedlings

作　　者：陈龙 

机构地区：[1]甘肃省临泽县林果业技术推广中心,甘肃张掖734200

出　　处：《防护林科技》2014年第4期30-32,共3页Protection Forest Science and Technology

摘　　要：为了解酸枣直播后当年苗木的生长规律,开展了不同播种时间出苗率、生长量的调查研究,结果表明：酸枣的高生长量主要取决于酸枣的播种时间。直播Ⅰ（4月25日）和直播Ⅱ（5月6日）高生长量之间无差异,与直播Ⅲ（5月16日）之间有差异,直播Ⅰ和直播Ⅱ较直播Ⅲ高生长量分别提高24.7%和21.8%;不同播种时间之间在酸枣苗粗度生长方面差异显著,4月下旬播种的地径生长量最大,5月上旬播种的次之,5月中旬播种的粗生长量最小;酸枣直播建园在该区域播种时间应以4月下旬或5月上旬为宜;酸枣幼苗抽梢展叶后进入初生期,生长35～42d,之后进入速生期,快速生长50d,地径快速生长期在7月上中旬至8月中旬,8月下旬停止生长。To understand the growth law of Ziziphus jujuba var .spinosaafter direct sowing in the very year ,germi-nation rate and growth of Ziziphus jujuba var .spinosawere studied .Result shows that ：height growth of Ziziphus jujubavar .spinosa mainly depends on their sowing time .Height growth of direct sowing Ⅰ（April 25） which has no difference with direct sowing Ⅱ（May 6） have differences with direct sowing Ⅲ ;direct sowing I direct sowingⅡ increase by 24 .7% 21 .8% than that of direct sowing Ⅲ ,respectively ;different sowing time have significant differences on length in diameter of Ziziphus jujuba var .spinosa seedlings ;the ground diameter growth of the seeds which were sowed in late April are the most ,followed by that sowed in early May ,and the least is that sowed in mid-May ;the optimal sowing time for Ziziphus jujuba var .spinosashould be late April or early May in this re-gion;after sprout ,Ziziphus jujuba var .spinosa seedlings enter newborn period ;after 35-42 d ,seedlings enter fast-growing period and then grew fast for 50 d;fast-growing period of ground diameter is in early mid-July to mid-August ;the seedlings stop growing in late August .

关 键 词：酸枣 播种 建园 苗木生长规律 

分 类 号：S665.1[农业科学—果树学]