【摘 要】
：
为了研究陆地棉抗虫性在生产上利用的可能性,1989年我们与新洲县农技中心合作在该县进行了抗虫品系生产试验,结果抗虫品系华101、华102比对照鄂棉12号少防治2次红铃虫,节省
【机 构】
：
华中农业大学农学系,麻城市农技中心,新洲县农技中心,
论文部分内容阅读
为了研究陆地棉抗虫性在生产上利用的可能性,1989年我们与新洲县农技中心合作在该县进行了抗虫品系生产试验,结果抗虫品系华101、华102比对照鄂棉12号少防治2次红铃虫,节省投资16.40元/亩,净收入分别增加123.78元/亩和94.74元/亩,纯利润提高20%以上,经济效益十分显著。为了
In order to study the possibility of cotton utilization in the production of upland cotton, we cooperated with Xinzhou County Agricultural Technology Center in 1989 to conduct the production test of the insect-resistant strains in this county. As a result, the insect-resistant lines Hua101 and Hua102 were more resistant than the control E-cotton 12 less prevention and control of two pink bollworm, save investment 16.40 yuan / mu, net income increased 123.78 yuan / mu and 94.74 yuan / mu, net profit increased by 20% or more, the economic efficiency is very significant. in order to
其他文献
The stable nonlinear transport of the Bose-Einstein condensates through a double barrier potential in a waveguide is studied.By using the direct perturbation me
Sideband manipulation of population inversion in a three-level Λ atomic configuration is investigated theoretically.Compared with the case of a nearly monochro
This paper is a further work of the authors’ paper published previously (Liao T H and Gao Q 2005 Chin. Phys. Lett. 22 2316). The amplitudes of fractional Fouri
Based on the obtained energy values of 1s2np (n ≤ 9) states for lithium-like systems from Z=11 to 20 (by the authors of this paper: Hu M H and Wang Z W 2004 Ch
随着水稻机插面积的不断扩大,原料来源广泛、生产成本低廉、与机插技术兼容性强的水稻育秧基质是机插水稻育秧技术的发展趋势。明确不同育秧基质的栽培技术,解析基质类型特征
The half-filled Hubbard chains with the Fibonacci and Harper modulating site potentials are studied in a selfconsistent mean-field approximation.A new order par
一篇新闻稿在排版中,有时候剩下几个字要转行或转栏,碰巧了会甩到老远。这不光是不好看,也常常使不熟悉版面“规矩”的读者四处寻找下落。下面是1987年2月8日《参考消息》第