钾肥用量对面包强筋小麦产量和品质的影响

Effect of K application rates on yield and quality in bread wheat

采用田间试验研究不同钾肥用量对龙 94 - 40 83面包强筋小麦产量与品质的影响 ,结果表明施钾明显增加小麦产量 ,K2 O用量 5 2 .5～ 82 .5 kg/ hm2 比较适宜。施钾能明显改善小麦品质 ,小麦粗蛋白和湿面筋含量、沉降值、稳定时间、最大阻力、延伸性、拉伸面积、面包体积和面包评分均有不同程度的提高 ,尤其是对稳定时间的延长效果更为明显。

Field experiment and plant analysis was carried out to investigate the effect of K application rates on yield and quality in bread wheat Long94 4083. The results showed that the grain yield of wheat increased obviously with potassium application. The appropriate application rate of K 2O was 52.5~82.5 kg/hm 2. Wheat quality was clearly improved by K application. The content of crude protein and wet gluten, and sedimentation value were enhanced and stable time was prolonged, also the maximum resistance, extensibility, extending area, bread bulk and bread grade were increased obviously by K application.