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优质麦是指营养品质和加工品质优良,具有专门用途的小麦,如面包小麦、饼干小麦。一般意义上讲主要偏重营养品质。优质麦要想优质高产应抓好以下环节: 控制施肥总量,施足基肥,重施拔节氮肥。 小麦籽粒产量和蛋白质含量在很大程度上取决于发育时期的供氮水平。在亩施16公斤纯氮的范围内,随氮量增加,籽粒蛋白质含量提高。基、追肥比例试验表明,高氮分期施肥对小麦产量及蛋白质含量均有正效应,追氮时期适当后延对提高小麦蛋白质含量及品质有重要作用。追肥比例应占总施氮量的30％～50％,追肥时期应在起身拔节期,根据当地情况可适当后延到孕穗前,不能提前早追、重追分蘖肥。
High-quality wheat refers to wheat with good nutritional qualities and processing qualities that have specialized uses such as bread wheat and biscuit wheat. The general sense of the main emphasis on nutritional quality. High-quality wheat to high quality and high yield should do a good job in the following areas: Control of total fertilization, Shizujifei, re-application of nitrogen fertilizer. Wheat grain yield and protein content are largely dependent on the level of nitrogen supply during development. In the range of 16 kg of pure nitrogen per acre, grain protein content increased with the increase of nitrogen content. Base and top dressing ratio experiments showed that high nitrogen stage fertilization had positive effect on wheat yield and protein content, and proper postponing of nitrogen recovery stage played an important role in improving wheat protein content and quality. Dressing proportion should account for 30% ~ 50% of the total nitrogen, top dressing should be up at the jointing stage, according to local conditions may be appropriate postponed until booting, can not early early chase, tilted tillering.