论文部分内容阅读
近年来,我区玉米单产总是在400公斤左右徘徊。为使玉米产量有一个新的突破,1988年我站采用矮化栽培技术,获得较高的产量。具体方法是喷洒玉米健壮素(江苏省淮阳农科所生产),玉米品种为沈丹7号和丹340号。栽培密度为每亩4500株,比常规栽培增加1300-1500株。当玉米进入雌穗小花分化末期,在11-12片叶展开时喷施。厂家生产的健壮素是30毫升装一支,每支兑水25公斤,恰好喷洒1亩地。结果如下: 1.实现了玉米矮化,增强了抗倒伏能力。喷施健壮素后,抑制玉米节间的伸长,与对照比,节间平均缩短14.5厘米,株高平均降低29.9厘米,穗位平均下降15.4厘米,茎秆平均增粗0.25厘米,单株根
In recent years, the yield of maize in our district has always hovered around 400 kilograms. In order to make a new breakthrough in corn production, in 1988, we used dwarfing cultivation techniques to obtain higher yield. The specific method is to spray healthy corn hormone (Jiangsu Province, Huaiyang Agricultural Branch), corn varieties Shen Dan 7 and Dan 340. Planting density of 4500 per acre, than the conventional cultivation increased 1300-1500 strains. When corn enters the end of floret differentiation, the spray is applied when 11-12 leaves unfold. The production of healthful element is a 30 ml equipment, each watered 25 kg, just sprayed 1 acre of land. The results are as follows: 1. To achieve corn dwarf, enhanced lodging resistance. The results showed that the internodes were shortened by 14.5 cm on average compared with the control. The plant height was reduced by 29.9 cm on average, the average spike position was decreased by 15.4 cm, the average stem thickness was increased by 0.25 cm,