摘要
以“正红6号”、“隆单8号”、“川单428”3个不同株型的玉米品种为材料，通过大田试验在川中丘区套作条件下开展密度对不同株型玉米产量和品质影响的研究。结果表明，川中丘区耐密型玉米品种“正红6号”高产高淀粉含量所对应的密度水平为67500~75000株／hm2，最大叶面指数为4．20～4．33；中间型品种“隆单8号”适宜密度水平是60000-67500株／hm2，最大叶面积指数为4．13～4．37；稀植型品种“川单428”在密度为60000株／hm2，最大叶面积指数达4．47时可获取较高的产量和淀粉含量。按照套作原埋，耐密型品种“正红6号”更具有套作优势。
Field experiment was conducted in the middle of Siehuan hilly basin under relay-cropping the effects of density on yield and quality of different maize plant type as Zhenghong 6, Nongdan 8 and Chuandan 428. The results showed that the, optimal planting density for high density tolerance maize varieties of Zhenghong 6 was from 67500 to 75000 plants/ha, LAI was from 4.20 to 4.33; half compact type maize varieties of Nongdan 8 was from 60000 to 67500 plants/ha, LAI was from 4.13 to 4.37 ; and for large-size spike maize varieties of Chuandan 428 was 60000 plants/ ha. LAI was from 4.47. According to principle of relay-cropping, it was better of compact type.
出处
《四川农业大学学报》
CSCD
北大核心
2009年第2期153-156,共4页
Journal of Sichuan Agricultural University
基金
四川省科技富民强县重点项目"丘区射洪县循环经济型现代农业科技集成研究与示范"(编号:07NG001-020)
公益性行业(农业)科研项目"200803028"
四川季节性干旱区粮食作物综合节水技术研究与示范(2007BAD88B08)
四川主要粮食作物丰产科技工程(2006BAD02A05)
四川省育种攻关项目(2006Y2GG-28)
关键词
川中丘区
套作玉米
株型
密度
产量
品质
the hilly area of the middle Sichuan Basin
relay-cropping maize
plant type
densities
yield
quality
