Effect of CO2 Aqueous Solution on Agronomic Traits and Grain Nutritional Quality of Maize Under Mulched Drip Irrigation
HAN Pin
WANG Shengyi
WANG Xiaojuan
BAO Fangjun
XUE Jinling
YANG Jiakang
Abstract：In this experiment,MC670 was used as the variety material,and the effects of CO2 solution on agronomic traits,yield and grain nutritional quality of maize at different growth stages were studied through the key technology of CO2 solution device under the conditions of mulched drip irrigation.The results showed that during the whole growing period,compared with conventional irrigation,CO2 aqueous solution could shorten the growth process of maize under mulched drip irrigation,advance the growth period by 7 d,and promote early maturing.The plant height,stem diameter and SPAD value of maize were increased,which promoted the growth of maize plant.The yield,row grain number and panicle length increased by 21.94％,16.36％,8.26％,respectively,indicating that CO2 aqueous solution had a significant effect on increasing yield.Compared with conventional irrigation,the contents of protein and fat in corn grains increased by 8.85％and 27.78％,respectively,indicating that CO2 dripping was conducive to the accumulation of protein and fat in corn grains,and could improve the yield and nutritional quality of corn grains.
Keywords：RiceDrip irrigation under mulch filmGrowth characteristicsYieldQuality
Publication Date：2024-08-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 13-17 )