摘要
１９９０～１９９２年，结合江苏响水县夏玉米高产开发，采用专题试验与大面积高产示范调查相结合的方法，对淮北滨海盐土夏玉米的高产栽培途径进行了研究，结果表明：增加单位面积总结实粒数是提高夏玉米产量经济而有效的指标。相应的高产途径是选用紧凑型中大穗品种，在适宜密度的基础上，增加肥料投入量，并围绕壮秆，增加倒７～９叶为中心的叶面积，减少弱株比例，以形成与产量相适应的总结实粒数和建立壮个体高积累的群体结构。
In 1990～1992,the high yield cultural approaches of corn (Zea mays L.)was invcstigatedby specifie experiments and comprehensive cultural demonstration in the salty soil region of Jiangsu Prov-ince. The results showed that: The strategy for high yield was mainly to increase total number of kernels. In produetion, choose the adapted hybird that can utilize the local growing scason and have the crectedcanopy leaf blades and larger ears. Use planting densities high enough to efficiently utillze local land andhybid’s potential. Incrcase fertilizing much more to make the corn plants have stronger stalk and lowerrate of ear height/plant height,also to enlarger the leaf blade area spccial of leaf 7～9 from the top. De- crease the rate of small plants in population to make the population aeeumulate more dry matter.
出处
《江苏农学院学报》
CSCD
1994年第1期31-34,共4页
Jiangsu Agricultural Research
