Effects of Planting Density and Fertilizing Amount on Wheat Lodging Resistance
Feng Shengye
Wang Guanglu
Wang Huaien
Cheng Qianqian
Wang Baofeng
Yan Shuping
Yu Yang
Zhao Yang
Sun Yunchao
Abstract：To make sure the relations of wheat lodging resistance with planting density (Z),nitrogen a-mount(N),phosphorus amount(P)and potassium amount(K)and to provide references for completing the high -yielding cultivation theory,the correlations of lodging -resistant index with stem mechanical strength, fresh weight and gravity center height were researched by an orthogonal rotational regression combination de-sign of 4 factors.The regression equations were constructed for lodging -resistant index with Z,N,P and K. The results showed that the stem mechanical strength showed the maximum correlation with lodging -resistant index,and the next was stem fresh weight.They both had very significantly negative correlation.The influ-ence degree of the 4 factors was K(88.921)>Z(77.061)>N(38.639)>P(3.736).The lodging -resistant index showed quadratic curve relationship with any one of 4 factors.With the increase of planting density,the lodging -resistant index increased gradually with slower and slower speed.With the increase of N and K ap-plication rates,the lodging -resistant index increased firstly and then decreased slowly.And with the increase of P application rate,the lodging -resistant index increased slowly at first and then rapidly.
Keywords：Planting densityFertilizing amountWheatLodging -resistant index
Publication Date：2016-06-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 50-53 )