The Impact Of The Potassium Application Rate On Proso-Lodging Resistance And The Crop Yields

Potassium is a necessary nutrient for crop growth,and abundant potassium in crop production can not only increase crop yield.At the same time,the research also showed that the application of potash fertilizer could promote the development of the vascular bundle of the crop stalks,so that the stem was thickened and the stem wall thickened to increase the strength of the stem,so as to improve the resistance of the plants.So this experiment adopts the split plot experiment design,in two different lodging resistance of corn millet varieties,Jin9 and Jin1 as the material,research on applying different K content of two different lodging resistance and stalks of Proso millet varieties of morphological indexto explore the influence of bending force and lodging coefficient,summarizes the Prosomilletstem agronomic characters,economic characters,mechanical properties,the influence of the lodging resistance.The results showed that:1.Among the various morphological indexes,the difference between the root roughness,internode length and the amount of potash fertilizer application was the most significant;There was no significant difference in plant height,height of center of gravity and the amount of potash fertilizer application,but it had significant positive correlation with yield.2.Among the economic indicators,two varieties have different manifestations.On the yield,aboveground fresh weight,Jinl and Jin9 K4 treatment with K1(no fertilizer)have significant differences,and on K4 processing production,best but overall,the difference of Jinl is more significant than that of Jin9.3.In the mechanical properties of each index,the nine bending force and stalks and mechanical strength of applying potassium content were not significant difference,while Jinl all have significant difference,but the two varieties of bending force and the stalks are mechanical strength reached the maximum in K4 processing;In addition,the invert coefficient of Jin9 and Jinl showed the trend of rising after decreasing with the increase of potash consumption,and all of them reached the lowest value in K4 treatment.4.In terms of yield,the optimum fertilizer application amount of no.9 was 5.55kg,and theoptimum fertilizer application amount was 6.69kg.In terms of the anti-retrograde ability,the optimum fertilizer application amount was 4.57kg,and the millet 1 was 6.14kg.5.The variety of Jin9 was superior to that of millet 1.