玉米杂交种丹玉405在海城地区适宜种植模式及密度研究
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摘要
以玉米杂交种丹玉405为材料,研究不同种植模式及密度对植株性状、光合速率及产量的影响。结果表明:随着种植密度的增加株高和穗位都有所增加;宽窄行和二比空两种模式在灌浆期功能叶片净光合速率优于常规清种模式;在3 500株/667m~2和4 000株/667m~2密度下,宽窄行和二比空两种模式植株抗倒伏能力优于常规清种模式;3 500株/667m~2密度下,宽窄行和二比空的平均产量分别为814.8 kg/667~2和798.4 kg/667~2,极显著高于其它模式。最终认为丹玉405在海城地区通过宽窄行和二比空两种模式在3 500株/667m~2的密度下有助于产量提高。
Maize hybrid Danyu 405 was chose as the material to study the effect of plant characteristics, net photosynthetic rate and yield on different planting patterns and density. The results showed that plant height and ear height was increasing with the increase of planting density. Net photosynthetic rate of spacing and 2∶0 culture were higher than seed-clearing in the filling stage. The lodging resistance increased obviously of spacing and 2∶0 culture on 3 500 and 4 000 plants/667 m~2. The average yield of spacing and 2∶0 culture were 814.8 kg/667 m~2 and 798.4 kg/667 m~2 on 3 500 plants/667 m~2 which were significantly higher than other planting patterns. It suggested that Danyu 405 using spacing and 2∶0 culture in 3 500 plants/667 m~2 were the best planting patterns.
Maize hybrid Danyu 405 was chose as the material to study the effect of plant characteristics, net photosynthetic rate and yield on different planting patterns and density. The results showed that plant height and ear height was increasing with the increase of planting density. Net photosynthetic rate of spacing and 2∶0 culture were higher than seed-clearing in the filling stage. The lodging resistance increased obviously of spacing and 2∶0 culture on 3 500 and 4 000 plants/667 m~2. The average yield of spacing and 2∶0 culture were 814.8 kg/667 m~2 and 798.4 kg/667 m~2 on 3 500 plants/667 m~2 which were significantly higher than other planting patterns. It suggested that Danyu 405 using spacing and 2∶0 culture in 3 500 plants/667 m~2 were the best planting patterns.
引文
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[3] 赵鑫,苏晓菲,张宝林.晋西北风沙源区玉米种植模式研究[J].山西农业科学,2018,46(10):1637～1639,1642.
[4] 张贵宗,蔡倩,白伟,等.玉米种植模式对褐土微生物特性的影响[J].生态学杂志,2018,37(9):2663～2671.
[5] 孔玮琳,薛燕慧,李进,等.不同氮水平下夏玉米夏大豆间作对其农艺性状及产量的影响[J].山东农业科学,2018,50(7):116～120.
[6] 张丽娟,杨恒山,张玉芹,等.宽行种植模式对春玉米叶片生理特性及产量的影响[J].内蒙古民族大学学报(自然科学版),2018,33(4):333～338.
[7] 李秉华,刘小民,许贤,等.玉米不同种植密度耕作模式和水分管理对杂草的影响[J].杂草学报,2017,35(3):34～37.
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