| Nitrogen is affecting wheat grain yield and quality of the most active factor,Scientific and rational nitrogen management not only decides the growth condition and yield of wheat,The formation of the wheat grain quality is also a significant adjustment.In recent years, Linyi City, the pollution problem is increasingly serious. It has also caused concern in many ways. At present, the government through close heavily polluting enterprises, straw Jinshao and other measures to improve the environment. Excessive nitrogen fertilizer not only causes pollution, but also can damage the environment. Therefore, it can not only improve wheat yield and improve wheat quality, but also can be a force for environmental protection.Test in linyi City Academy in 2011-2013 plots were tested variety linmai 4, was studied under different nitrogen level plant yield, protein content and the content of protein components and processing quality of change. Main set N0, N75, N150, N225, N300, N375, six different nitrogen level, GMP content in wheat grains, starch and its components in heavy, wet and dry gluten content compared to N0, N150, N225, N300, only four different nitrogen levels. Test results are as follows:1, the effects of amount of nitrogen fertilizer on Linmai 4 yield.The research results show that when n application within the scope of 0-225 kg/hm2, small grain number of spike grain number Grain all increase with the increase of n application, continue to improve the level of nitrogen, the yield components to start falling So as n application rate increased wheat yield increase, when the n application rate of 225 kg/hm2 wheat yield is highest, continue increasing n application rate, wheat grain yield began a downward trend2,N application rate of wheat in the Linmai4 the influence of the content of protein and its componentsThe results of the study said that the spikelet after wheat grain protein content changes in the first fall after a rise trend, and reduce a fast increase in the late early days; General with the increase of n application rate, protein content increased. Spikelet grain protein content basic for lower spikelet content, most is least upper spikelet; Increasing n application rate, mainly contributed to the central spikelet grain protein content increase. N application rate, protein components in grains were also significantly affected wheat, the application of increasing nitrogen content of wheat grain protein and its components also will increase, when the n application rate of 225 kg/hm2 peak, continue to increase nitrogen content of grain protein and its components, began to decline. And n application rate of 0-225 kg/hm2 range, improve the proportion of different protein components content, albumin, globulin and glutenin to total protein increased, and gliadin ratio of total protein content declined.3,The influence of n application on Linmai 4 processing qualitysignificantly affected wheat, the application of increasing nitrogen content of wheat grain protein and its components also will increase, when the n application rate of 225 kg/hm2 peak, continue to increase nitrogen content of grain protein and its components, began to decline. And n application rate of 0-225 kg/hm2 range, improve the proportion of different protein components content, albumin, globulin and glutenin to total protein increased, and gliadin ratio of total protein content declined.and good quality. Wheat grain yield, protein accumulation dynamic effect, protein components content and processing quality of wheat were influenced by n application rate. A moderate amount of n application can increase the grain yield and the content of protein and its components, add flour SDS sedimentation value, GMP content, starch content and wet gluten content and its components, thus improve the processing quality of wheat. In this experiment, the best n application rate of 225 kg/hm2.But the best nitrogen will be affected by other factors, such as soil fertility levels, etc. application;Grain yield;The protein content;Processing quality... |
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