Effects of Planting Density and Nitrogen Fertilizer on Yield Composition and Agronomic Trait of Corn
LIU Xiaofei
DING Yidong
CUI Xiaoping
LAI Shangkun
YANG Ke
WANG Weijun
Abstract：Reasonable planting density and nitrogen fertilizer dosage are important ways to increase com yield.The study on the impact of planting density and nitrogen fertilizer dosage on corn growth and yield can provide technical basis for increasing planting density and controlling nitrogen fertilizer dosage for new varieties.We took Qianyu 210 as the research object in the experiment,and studied the impact of different planting density(60 000,67 500 and 75 000 plants/hm2)and nitrogen application levels(0,150,225,300,375 and 450 kg/hm2)on agronomic traits and yield.The results showed that under a planting density of 67 500 plants/hm2 and a nitrogen fertilizer level of 300 to 375 kg/hm2,the plant height and panicle height were around 249 cm and 110 cm respectively,and the panicle length,panicle row number and row grain number were above 23 cm,14 rows and 38 grains/row respectively.The maximum yield reached 11.37 t/hm2.
Keywords：CornPlanting densityNitrogen fertilizerYield
Publication Date：2025-12-28
Online Publishing Date：2026-02-02(First online date of this platform, not the publication date of the document)
Pages：8( 28-35 )