摘要
为了解决当前高粱生产中的缺陷,充分发挥高粱在旱作作物中的高产作用,寻求适应该区种植的新模式,应用随机区组设计方法从耕作、施肥以及施肥量三方面进行了对比研究,得出了以"施肥制度、耕作制度的改革"为中心,结合品种优选的"两改一优"的栽培模式。结果表明:应用该模式比传统种植0～20cm土壤耕层水分提高31.16%～35.55%,产量增加27.69%～28.71%,氮素表观利用率提高4.18%～5.26%,氮素农学利用率增加9.25～10.11kg/kg,氮素生理利用率增加17.72～17.97kg/kg,水分利用率提高24.52%～27.38%。
This paper studied the effects of cultivation, fertilization and the quantity of fertilization for sorghum yield using the way of Randomized block design, in order to find a new planting mode for the Arid and Semi-arid Area. A new plant mode named ＂two reforms and one optimization＂ was made. The results showed that, after using the new plant mode the water raised 31.16%-35.55% in 0-20 cm Plough Layer of Farmland Soils, the yield increased 27.69%-28.71%, the apparent utilization of nitrogen increased 4.18%-5.26%, the nitrogen agronomic utilized coeffciency increased 9.25-10.11 kg/kg, the physiological nitrogen utilization increased 17.72-17.97 kg/kg, the utilization of water increased 24.5：2%-27.38% Compared with traditional plant mode.
出处
《中国农学通报》
CSCD
北大核心
2009年第14期126-129,共4页
Chinese Agricultural Science Bulletin
基金
国家科技支撑项目"高淀粉酿造高粱新品种选育及产业化示范"(2006BAD02B03)
山西省科技攻关项目"干旱
半干旱地区高淀粉高粱高产栽培技术研究"(20080311004)
关键词
干旱
半干旱区
高粱
栽培模式
arid, semi-arid area, sorghum, planting mode
