CAJ | 학술논문

以黑龙江省哈尔滨玉米主栽品种久龙8为试材,采用自然条件下对比观测的方式开展玉米田间试验,研究分析不同土壤湿度对玉米生长发育的影响。结果表明：不同的土壤湿度对玉米生长发育的影响存在差异,玉米发育进程、叶面积、植株干物质对不同土壤湿度的反应不同。玉米全生育期内不同土壤相对湿度的偏差在±5%之间不会对玉米发育进程造成差异。玉米叶面积、植株干物重对不同土壤湿度反应明显,土壤相对湿度高于70%,尤其中层（30～50cm）土壤相对湿度在80%以上,土壤水分适宜,对叶面积增加为正效应作用,且对玉米干物质增加和玉米籽粒灌浆均有利,可使玉米果实重量出现一定程度的增加。
이흑룡강성합이빈옥미주재품충구룡8위시재,채용자연조건하대비관측적방식개전옥미전간시험,연구분석불동토양습도대옥미생장발육적영향。결과표명：불동적토양습도대옥미생장발육적영향존재차이,옥미발육진정、협면적、식주간물질대불동토양습도적반응불동。옥미전생육기내불동토양상대습도적편차재±5%지간불회대옥미발육진정조성차이。옥미협면적、식주간물중대불동토양습도반응명현,토양상대습도고우70%,우기중층（30～50cm）토양상대습도재80%이상,토양수분괄의,대협면적증가위정효응작용,차대옥미간물질증가화옥미자립관장균유리,가사옥미과실중량출현일정정도적증가。
Main maize variety（Jiulong 8） in Heilongjiang Province was treated with the contrast observation under natural conditions in the maize field,and the effect of different soil moisture on maize growth was analyzed.The results showed that different soil moisture had different effects on maize growth,response of maize development date,leaf area and dry matter was not the same to different soil moisture.Soil moisture less than ±5% deviation didn＇t cause difference of maize development date in maize whole growth stage,Different soil moisture had a significant effect on leaves area and dry weight,Soil moisture was above 70%,in particular,middle layer（30~50cm） soil moisture was above 80%,which was suitable for maize and had positive effect on the increase in leaf area,Suitable soil moisture was beneficial to the increase in dry matter and maize grain,which can result in the maize fruit weight increase.