摘要： 1997～1999年对渗灌与播种方式在旱地小麦产量形成中的作用进行了研究.结果表明,在两个栽培因素中,渗灌有极显著的增产作用,两年平均渗灌量为32.0 mm,产量达6 686.7 kg/hm2,较对照增产19.%.播种方式间产量存在一定差异,其中,窄行条播与露地穴播增产幅度较大,二者产量分别为6 77.9 kg/hm2和6 05. kg/hm2,分别较传统的露地条播增产15.9%与1.6%.窄行条播与渗灌措施间存在明显的协同效应,窄行条播加渗灌产量达7 112.0 kg/hm2,较露地条播(不灌)增产33.9%,大于两单项技术与对照相比所表现的增产效应之和.窄行条播、渗灌以及二者的协同作用所表现的增产效应形成了旱地小麦渗灌窄行条播栽培技术体系的基础.
关键词:
旱地小麦,
渗灌,
窄行条播,
协同作用
Abstract: Yield performance ef fects of underground irrig at ion and sow ing pat tern for dryland w heat were studied in 1997-1999 in Fushan county of Shanx i. The result s show ed that the yield-increasing ef fect of underground irrigat ion w as g reater than that of sow ing pat tern. Irrigation increased yield by 19 4%. Compared w ith the convent ional sowing pattern, the punctured-sow ing and narrow-spaced drilling had a y ield advantage of 15 9% and 14 6% respect ively . Further ana-lysis indicated that obvious synerg et ic ef fect w as existed betw een underg round irrig at ion and narrow-spaced drilling, which reached up to a yield increase of 33 9% over the conventional sow ing pat tern without irrig at ion.
Key words:
Dryland w heat,
Underground irrig at ion,
Narrow-spaced drilling,
Synerget ic effect
中图分类号:
张松令, 刘玲玲, 程麦凤, 郑王义. 旱地小麦窄行条播渗灌栽培技术研究[J]. 华北农学报, 2002, 17(2): 40-43. doi: 10.3321/j.issn:1000-7091.2002.02.009.
ZHANG Songling, LIU Lingling, CHENG Maifeng, ZHENG Wangyi. Cultivation Technique of Underground Irrigation Plus Narrow-spaced Drilling for Dryland Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(2): 40-43. doi: 10.3321/j.issn:1000-7091.2002.02.009.