为探讨华北平原冬小麦控水提质种植模式,在2012—2013年冬小麦生育期间,采用常规种植和宽幅精播2种种植模式,每种种植模式都设冬小麦整个生育期不灌溉、于拔节期灌溉60mm和于拔节后10 d灌溉60 mm共3种灌溉处理,研究了控水条件下不同种植模式冬小麦的籽粒产量及品质特性.结果显示：推迟灌拔节水显著增加了穗粒数、湿面筋含量和湿面筋指数.宽幅精播种植模式显著增加了冬小麦穗数.推迟灌拔节水显著提高了宽幅精播冬小麦的籽粒产量、籽粒蛋白质产量、吸水率、湿面筋含量和面团稳定时间.在冬小麦生育期间总灌溉量为60 mm条件下,推迟灌拔节水显著提高了宽幅精播冬小麦的籽粒产量和加工品质.研究可为华北平原冬小麦控水提质模式提供理论依据和技术支持.
In order to explore a planting pattern of winter wheat to achieve water contolling and quality increasing objectives in the North China Plain, effects of planting pattern on yield and quality of winter wheat were investigated under various irrigation conditions. The experiments were conducted in 2012 - 2013 winter wheat growing season, two planting patterns were adopted, wide -precision planting pat- tern and conventional - cultivation planting pattern, and in each planting pattern, there were three irri- gation schemes, namely that no irrigation in the whole growing season, irrigated 60 mm in jointing stage, and irrigated 60 mm in the 10th day after jointing stage. The results show that delayed irrigation in jointing stage leaded to an increased number of kernels per spike, wet gluten content and gluten in- dex significantly. The wide -precision planting pattern increased the number of spikes substantially.The delayed irrigation in jointing stage considerably raised grain yield, protein yield, wet absorption, wet gluten content and dough stability time for the winter wheat in wide - precision planting pattern. In both of the planting patterns, irrigation significantly decreased protein content; however, The delayed irrigation in jointing stage significantly enhanced protein yield. The delayed irrigation in jointing stage significantly increased wet absorption, dough development time, and dough stability time in wide - precision planting pattern. In the condition of irrigated 60 mm during growing season, The delayed irri- gation in jointing stage significantly improved winter wheat grain yield and quality in wide - precision planting pattern. These experiments can provide a theoretic evidence and technical support for water controlling and grain quality improvement of winter wheat in the North China Plain.
Drainage and Irrigation Machinery
wet gluten content
North China Plain