种衣剂和起垄栽培对玉米生长和产量的影响  

Effect of Drought-resistant Agent and Ridged Cultivation on Maize Growth and Yield

作　　者：李巧珍[1] 丁军军 李玉中[1,2] 徐春英[1] 郭家选[3] 毛丽丽[1] 孙东宝[1] LI Qiao-zhen;DING Jun-jun;LI Yu-zhong;XU Chun-ying;GUO Jia-xuan;MAO Li-li;SUN Dong-bao(Institute of Agricultural Environment and Sustainable Development in Agriculture,CAAS/Key Laboratory of Dry- land Agriculture,Ministry of Agriculture,Beijing 100081,China;Environmental Stable Isotope Laboratory,CAAS,Beijing 100081;Beijing University of Agriculture,Beijing 102206)

机构地区：[1]中国农业科学院农业环境与可持续发展研究所/农业部旱作节水农业重点实验室,北京100081 [2]中国农业科学院环境稳定同位素实验室,北京100081 [3]北京农学院,北京102206

出　　处：《中国农业气象》2018年第8期512-517,共6页Chinese Journal of Agrometeorology

基　　金：国家"十二五"科技支撑计划(2011BAD32B03);国家自然基金(41473004;41301553;41501318;41701308);中央级公益性科研院所基本科研业务费专项(No.BSRF201716);农业水资源与水土环境创新团队

摘　　要：针对北方地区春季玉米播种期干旱、出苗困难、苗情差等问题,筛选低聚糖、甲壳素、腐植酸盐等含量适宜的抗旱物质及多种助剂,制成玉米专用抗旱种衣剂,进行种子包衣,同时结合起垄栽培技术,进行大田实验,以探究其对玉米出苗率、生长状况和产量的影响。实验设4个处理:起垄+抗旱种衣剂(RD)、起垄(R)、抗旱种衣剂(D),以平地种植为对照(CK)。结果表明,施用抗旱种衣剂对玉米种子进行包衣处理,出苗期提早1~2d,生育期缩短1周左右。RD、R、D处理的玉米出苗率与CK相比,分别提高18.3%、7.2%、12.1%,产量与CK相比,分别增加17%、6%、3%,其中RD处理与CK间的差异显著(P<0.05),说明抗旱种衣剂结合起垄栽培技术,对提高玉米出苗率、促进生长、提高产量有积极作用。In order to solve the problems of drought in maize seeding season, difficulties in maize seedling emergence and poor seedling quality in northern China, authors developed a drought-resistant agent by selecting suitable drought-resistant substances such as oligosaccharides, chitin, humates and various kinds of additives to ensure seed vigor in the soil and seed emergence rate. By using drought-resistant agent and the ridge planting technique, the field experiment was conducted, consisting of 4 treatments： ridge planting and drought-resistant agent（RD）, ridge planting（R）, drought-resistant agent（D）, and flat planting（CK）. The results of the field experiment showed that the application of drought-resistant agent to maize seed could advance the emergence for 1 to 2 days and reduce the fertility period for about one week. Compared with the control, the emergence rate of RD, R, and D treatments increased by 18.3%, 7.2%, and 12.1%, respectively; and the yield increased by 17%, 6%, and 3%, respectively. The results indicated that the drought-resistant agent combined with ridging technique could promote seedling emergence rate, growth and yield of maize.

关 键 词：抗旱种衣剂 起垄技术 玉米 出苗率 产量 

分 类 号：S513[农业科学—作物学]