吉林省玉米高产区高产高效栽培技术与生育生理指标研究——第一报 公顷产量11250kg栽培技术  

Studies on the Cultivation Techniques for High-yield Maize and the Indexes of Growth and Development and Physiology in High-yield Region of Jilin province——Ⅰ. Cultivation Techniques for 11250kg Per Hectare

作　　者：吉林省玉米双高栽培技术课题组 

机构地区：[1]吉林省农科院玉米所等单位,公主岭136100

出　　处：《玉米科学》1994年第2期15-19,共5页Journal of Maize Sciences

摘　　要：在吉林省玉米高产区,公顷产量由原来的7000～8000kg提高到11000多公斤,是种植耐密型高产品种,合理密植、增施肥料、精耕细种、加强田间管理等措施综合作用的结果.其中品种的增产作用是主要的,适宜密度因品种而异,即中晚熟、晚熟、中、大穗型品种,公顷6.0万株左右,中熟、小穗型品种7～8万株;在施肥上,应增施氮肥、补施钾肥,公顷施氮量应增加到220～230kg,钾(K_2O)应补施到70～150kg,磷(P_2O_5)要保持原来75～80kg即可;采用综合措施,将田间小穗株率控制在5%以内.Per hectare yield raise(from 7000-8000 to 11000kg) results from tolerant to dense and high-yield varieties,rational close planting,increase in fertilizer,intensive cultivation and more effective field management in high-yield maize region of Jilin province. Varieties play an important role in increasing yield. Planting densities of various varieties are different. The density for middle-late mature and late mature variety with bigger ear is 60000 plants/ha, that for middle mature variety with smaller ear is 70000-80000 plants/ha. In fertilizer respect, nitrogen is increased by 220-230kg/ha, potassium is added up to 70-150kg/ha,phosphorus is remained to 75-80kg/ha. The percentage of smaller ears is controlled under 5% by using synthetical cultivation techniques.

关 键 词：玉米 栽培 密度 生理指标 

分 类 号：S513.04[农业科学—作物学]