摘要
用RB72-454和F134(CK)2个甘蔗品种在坝地和坡地设置尿素施用量为每667m240 kg、20 kg、10 kg和不施尿素4种处理,经新植和宿根各1年试验,结果表明:3种施氮处理RB72-454产量构成因素比不施氮肥明显增加,但对施氮水平响应不敏感。20 kg/667m2尿素处理RB72-454的产量、含糖量、产糖量坝地达8 686 kg/667m2、15.72%和1159 kg/667m2,比F134分别增长50.1%、1.49%(绝对值)和65.6%;坡地达6 982 kg/667m2、15.53%和927 kg/667m2,比F134分别增长71.7%、1.06%(绝对值)和85.4%,增产增糖效果极显著。
Four different amounts of nitrogen （40kg, 20kg, 10kg and 0kg/667m^2） for two sugarcane varieties, nitrogen fixation RB72-454 and F134 were conducted on flat field and slope land to investigate the fertilizer effects on yield. The results from the stubble cane planting and new planting for one year showed that the three different amounts of nitrogen applied can increase the seedling rate, tillering ability, height of stem, stem diameter, single stem weight, effective stems and yield compared with those without nitrogen applied in RB72-454 variety planted on the flat field and slope land, but there was no significant relation between yield and different amount of nitrogen applied. The yield, sugar content and sugar production of RB72-454 with 20kg/667m^2 of nitrogen planted on the flat field were 8686kg/667m^2, 15. 72% and 1159kg/667m^2, which increased by 50. 1%, 1. 49% and 65. 6% compared with those of F134 respectively. The yield, sugar content and sugar production of RB72-454 with 20kg/667m^2 of nitrogen planted on the slope land were 6 982kg/m^2 , 15.53% and 927kg/m^2, which increased by 71.7%, 1.06% and 85.4% compared with those of F134 respectively.
出处
《贵州农业科学》
CAS
2006年第1期52-55,共4页
Guizhou Agricultural Sciences
基金
贵州省农业科技攻关项目[黔科合NGY(2003)039号]
