Study Of Influence Of The Shape Of Waxy Maize Agronomic And Quality Traits With Different Nitrogen Levels

This experiment through the study of different nitrogen levels on waxy maize growth, nutrient uptake and agronomic traits, yield traits, quality traits of the influence of to get optimum nitrogen level, for cultivation of waxy corn better planting to provide certain theoretical basis. The experiment was conducted in Jilin Agricultural University experimental field, to Jinnuo 6 and Kennian No.1 as material, the single factor experiment design, with nitrogen as the variable set, selected 60kg/hm~2,120kg/hm~2,180kg/ hm~2,240kg/ hm~2,300kg/ hm~2,360kg/ hm~2, six kinds of application of water and nitrogen Determination of agronomic characters and quality characters and yield characters of milk after the milk ripe stage were found by means of the analysis of the:(1) Of different nitrogen levels on each period of waxy maize agronomic traits have a certain effect of waxy maize plant height traits in each period will be affected by nitrogen level significantly influence and showed a single peak curve changes in nitrogen amount of plant height is lowest in nitrogen application amount to 300 kg / hm~2 plant height is the highest, the amount of nitrogen plant high and decreased; waxy maize plant stem diameter characters in each period with the nitrogen content change trend, was negatively correlated with the application amount of nitrogen increased with thinning in nitrogen application amount for the coarse in nitrogen content of 36 Condition of the fine; in the milk stage, waxy maize ear with the amount of nitrogen increased trend and the height of the same, first increased and then decreased in amount of nitrogen fertilizer is 60 kg / hm~2 ear is the lowest, in the application of nitrogen is 300 kg / hm~2 when spike was the highest and in nitrogen application amount to 360 kg ear decreased; waxy maize leaf photosynthetic rate and chlorophyll content in different periods are and application amount of nitrogen was positively related.(2) The effect of nitrogen application rate on the quality traits of waxy corn was not significant, and the increase of N fertilizer could make the starch content of starch in the total starch increased.(3) The amount of nitrogen of Waxy Maize Yield and yield traits that affect significantly. At low applied nitrogen level of grain weight, ear diameter, ear length yield with the application amount of nitrogen increases, nitrogen / hm~2 reached its peak in, when increasing the amount of nitrogen to 300 kg / hm~2 and 360 kg, above index has declined.(4) Kennian No.1 and Jinnuo 6 in two varieties, suitable application nitrogen amount between240kg/hm~2 to 300 kg / hm~2, this time to the nitrogen absorption of active, plant height and stem diameter suitable, lodging probability is small, relatively high yield, ear quality and appearance and taste.