砂壤质潮土钾肥施用方式及与锌、硼配施对强筋小麦产量及品质的影响

通过大田试验研究了潮土区砂壤质土壤强筋小麦钾肥不同施用方式和抽穗期喷施微量元素的效果。结果表明,施用钾肥能够提高强筋小麦穗粒数和千粒重,表现出明显的增产效果。灌浆期喷施钾、锌、硼肥,可以不同程度地提高小麦旗叶的硝酸还原酶(NR)、谷丙转氨酶(GPT)活性,改善小麦的营养品质和加工品质。其中,钾和锌肥对小麦品质的影响最大,可以提高粗蛋白、沉淀值、吸水量、形成时间和稳定时间。喷锌肥可以提高沉淀值、湿面筋、吸水量和稳定时间。喷钾肥可使蛋白质、沉淀值、吸水量、稳定时间增加。

Effects of Combined Use of K,Zn and B Fertilization on Yield and Quality of High Gluten Wheat in Sandy and Loamy Chaotu Soil

A field experiment was made to study the effects of different K application ways and spraying trace elements at heading stage on the quality and yield of high gluten wheat.The results indicated that the application of potassium fertilizer could enhance the grain mumber per ear and 1000-grain weight,so increase the yield obviously.Spraying K,Zn and B fertilizer at heading stage had a certain effect on nitrogen metabolism of wheat,and could increase the activities of nitric acid reductases(NR) and Alanine transaminase(GPT) in flg leaves,so improve the nutrition quality and processing quality of wheat.Among them,potassium and zinc fertilizer had the most effect on wheat qulity,which could enhance the crude protein,sedimentation value,water obsorption rate,forming time and stable time.Application of Zn could enhance the sedimentation value,wet gluten content,water obsorption rate and stable time.Potassium fertilizer could increase the protein content,sedimentation value,water obsorption rate and stable time.