Effect of irrigation method on grain yield of winter wheat

Four irrigation methods: basin irrigation (BI), tube-sprinkler irrigation (SI), drip irrigation (DI) and pillow irrigation (PI) were tested in this study during 2012-2015 winter wheat growing seasons at Luancheng experimental station (37°53′N, 114°40′N; elevation 50 m) in the North China Plain (NCP). For BI irrigation method, no irrigation (B-0), one irrigation application at jointing stage (B-90, total amount of 90 mm) and two irrigations at jointing and anthesis stages (B-160, total amount of 160 mm with 90 mm at jointing and 70 mm at anthesis) were conducted during 2012-2015 seasons. For DI irrigation method, two irrigations at jointing and anthesis stages were conducted during 2012-2015 seasons, each irrigation amount was 45 mm. For SI and PI irrigation method, three irrigations at jointing, heading and grainfill stages were conducted during 2012-2014 seasons, each irrigation amount was 60, 50 and 50 mm, respectively. In addition, In 2014-2015, PI and SI had the same treatments as with the DI to compare the performance of the three irrigation methods.

本研究于2012-2015年冬小麦生长季，在华北平原（North China Plain, NCP）的栾城试验站（37°53′N，114°40′N；海拔50 m）开展试验，共测试了4种灌水方式：畦灌（basin irrigation, BI）、管喷灌（tube-sprinkler irrigation, SI）、滴灌（drip irrigation, DI）与枕式灌水（pillow irrigation, PI）。针对畦灌（BI）处理，2012-2015年生长季共设置3类灌水方案：不灌水（B-0）、拔节期单次灌水（B-90，总灌水量90 mm）以及拔节期与扬花期两次灌水（B-160，总灌水量160 mm，其中拔节期灌水90 mm、扬花期灌水70 mm）。针对滴灌（DI）处理，2012-2015年生长季均设置拔节期与扬花期两次灌水，单次灌水量均为45 mm。针对管喷灌（SI）与枕式灌水（PI）两种灌水方式，2012-2014年生长季均设置拔节期、抽穗期与灌浆期三次灌水，各次灌水量分别为60 mm、50 mm与50 mm。此外，2014-2015年生长季，枕式灌水（PI）与管喷灌（SI）采用与滴灌（DI）完全一致的处理方案，以对比三种灌水方式的应用性能。