提高苜蓿种子产量综合配套技术研究  

Comprehensive technology study on improving alfalfa seed yield

作　　者：鲁英[1] 庄长楠 王丽红[2] 吴树林[1] 常喆[1] 赖宪明 

机构地区：[1]白城市畜牧科学研究院,吉林白城137000 [2]白城师范学院,吉林白城137000

出　　处：《中国农机化学报》2015年第2期338-340,共3页Journal of Chinese Agricultural Mechanization

摘　　要：2008年在松嫩平原研究测试了行距、播量、施肥剂量及灌水时间单因子对苜蓿种子产量的影响,试验结果表明:行距65cm、播量3kg·hm-2、施肥量磷酸二铵180kg·hm-2和硫酸钾50kg·hm-2、灌水时期在收割后至霜冻前和翌年孕蕾至初花期根据水分亏缺量,每次灌溉需要量为(需水量-降水量)年灌溉2次处理的种子产量均为最高。2010年把上述因子组合一起,种子产量达845kg·hm-2,比对照组种子产量523kg·hm-2提高了61.6%,极显著高于其它处理。在苜蓿品种、行距、播种量确定情况下,制约种子产量的主要因素就是水肥剂量和灌水时期。In 2008, we studied the influence of the line spacing, sowing and fertilizing quantity, and irrigation time on alfalfa seed yield. The test results showed that with spacing 65cm, sowing amount 3kg/hm2, fertilization （NH4） 2HPO4 180kg/hm2 and K2SO4 50kg/hm2, the twice irrigations which made according to the moisture deficit ullage after harvest but before frost and in the early flowering period next year will create the highest seed production. In 2010, the above factors were combined together, the seed yield was above 845kg/hm2, which increased 61.6% compared with 523kg/hm2. If alfalfa varieties, spacing, and seeding rate are determined, the main factors which restrict seed yield are the fertilizer metering and timing.

关 键 词：苜蓿 种子产量 水肥 

分 类 号：S625.5[农业科学—园艺学] TP273[自动化与计算机技术—检测技术与自动化装置]