旱地小麦窄行条播渗灌栽培技术研究

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32.0mm，产量达6686．7kg/hm^2，较对照增产19．4％，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6477．9kg/hm^2和6405．4kg/hm^2，分别较诉露地条播增产15．9％与14．6％，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7112．0kg/hm^2，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。

Cultivation Technique of Underground Irrigation Plus Narrow -spaced Drilling for Dryland Wheat

Yield performance effects of underground irrigation and sowing pattern for dryland wheat were studied in 1997-1999 in Fushan county of Shanxi.The results showed that the yield increasing effect of underground irrigation was greater than that of sowing pattern.Irrigation increased yield by 19 4%.Compared with the conventional sowing pattern,the punctured sowing and narrow spaced drilling had a yield advantage of 15 9% and 14 6% respectively.Further ana lysis indicated that obvious synergetic effect was existed between underground irrigation and narrow spaced drilling,which reached up to a yield increase of 33 9% over the conventional sowing pattern without irrigation.