【摘 要】
：
玉米是高产作物,我县种植面积较大,约占粮豆种植面积的22.4%,由于自然条件的差别形成不同生态型,仅以活动积温而言,可划为四个积温区,而四个积温区都种植同一玉米品种——嫩
【机 构】
：
宁安县种子公司,宁安县种子公司,宁安县种子公司,
论文部分内容阅读
玉米是高产作物,我县种植面积较大,约占粮豆种植面积的22.4%,由于自然条件的差别形成不同生态型,仅以活动积温而言,可划为四个积温区,而四个积温区都种植同一玉米品种——嫩单三号,不能因积温区种植相应品种,致使我县玉米产量难以大幅度地增长,满足国民经济日益发展的需要。
Maize is a high-yield crop, and my county has a large acreage, accounting for 22.4% of the acreage of grain beans. Due to the differences in natural conditions, different ecotypes are formed. Only the active accumulated temperature can be classified into four accumulated temperature zones and four Accumulate the temperature zone are the same corn varieties - tender single three, can not be planted due to accumulated temperature varieties, resulting in a substantial increase in maize production in our county to meet the growing needs of the national economy.
其他文献
梦想源自情怀,情怀源自境界。具体到新闻工作而言,追求富有记录特征的真人真事的报道,并在文字、图片中融入真情实感,同样是一种难能可贵的情怀。陈海强的《梦想的回声》即是
我县位于本省闽东北沿海,约北纬26°41′至27°24′,与东经119°23′至119°52′之间。东、西、北分别与柘荣、霞浦、周宁、寿宁及泰顺县毗连接壤。南临内陆三沙湾。县境南
GaN Nanowires were prepared by the post-nitridation technique. The morphology and structure of GaN nanowires are investigated by transmission-electron microscop
Two-gap capillary plasma generator is a realistic alteative to the conventional capillary in electrothermal lannchers. It is designed to accomplish two goals: r
Self-organized InAs quantum wires (QWRs) were fabricated on the step edges of the GaAs (331)A surface by molecular beam epitaxy. The lateral size of InAs Q WRs
The on-line time differential perturbed angular correlation technique has been developed for the first time. Thequadrupole interaction of 19F in Cd was measured
混凝土的浇筑,应预先根据工程结构特点、平面形状和几何尺寸、棍凝土制备设备和运输设备的供应能力、泵送设备的泵送能力、劳动力和管理能力以及周围场地大小、运输道路情况
We investigate the effects of the atomic centre-of-mass motion on atomic population trapping in a two-mode micromaser injected with ultracold A-type three-level
在英语电影翻译中巧妙应用网络语言,既符合多数受众的观影心境,又时代发展的必然要求。随着我国对外开放进程的加快,文化交流也日益频繁,未来将会有更多的英语电影进入国内市
A Mach-Zehnder electro-optic modulator is designed and fabricated based on upper-clad GeO2-doped silica ridge waveguides with thermal poling. The electro-optic