Effects of Soil Fertility and Cultivation Pattern on Canopy Structure and Yield of Summer Maize
Huo Zhijin
Cheng Yi
Dong Shuting
Liu Peng
Zhao Bin
Zhang Jiwang
Abstract：Taking Zhengdan 958 as the test material,under high and low soil fertility conditions,four treatments of super -high -yielding cultivation pattern (SH),high -yielding and high -efficiency cultivation pattern (HH),farmer’s practice cultivation pattern (FP)and the control (CK)were designed to study their effects on canopy structure and yield of summer maize in 2013 ~2014.The results showed that under high fer-tility condition,the yield of summer maize was higher than that under the low fertility condition;the upper leaf layer was more compact and the ear layer could received more light;the lower leaf layer aged faster,but the LAI and LAD were higher.Under the same soil fertility condition,SH and HH increased the plant height and ear height compared with FP and CK,but decreased the stem diameter and made the plant type more compact compared with FP.They also had higher LAI and speed of morphogenesis,longer high -LAI duration and higher level of LAI of lower layer in late period.They accumulated more LAD in the growth period,and the proportion before the tassel stage was higher than CK.Under SH and HH treatments,higher ear number per unit and harvest index could be obtained,and their grain yields were significantly higher than FP and CK.
Keywords：Summer maizeSoil fertilityCultivation patternCanopy characteristicYield
Publication Date：2015-09-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 21-26 )