Preceding Crops Selection, Colza Seeding Norms and Dates Optimization in North Kazakhstan

来源 :农业科学(英文) | 被引量 : 0次 | 上传用户:shanghui
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Colza is a relatively new crop for North Kazakhstan. The increase of colza seeds production is restricted by its cultivation technology imperfection. Empiric model of colza for seeds cultivation is designed, allowing using its maximum potential. It was fo
其他文献
In the southern Great Plains (SGP) of the USA warm-season legumes can improve the quality of available forage in pasture systems based on perennial warm-season
Eh-pH图是研究成矿溶液的重要手段之一。在传统元素-水体系的Eh-pH图的基础上,笔者提出和研究了成矿溶液中配合物体系的Eh-pH图的建立方式,为成矿溶液的理论模拟和成矿作用的研究提供了新的途径
Occurrence of citrinin and ochratoxin A in different feed ingredients and compound feeds was screened by accredited methods based on the indirect competitive en
在已知方位的平面上,分解剪应力(τ)的方向既受主应力轴方位的控制,又受主应力差的比率的控制。本文介绍了一种可确定τ方向的简易极射赤平投影作图法。
This study investigated the competency improvement needs of farmers in soil erosion prevention and control for enhancing crop production in Kogi state of Nigeri
提出了基于X射线激发的光释光测年原理,据此进行了初步实验研究。研究表明,利用X射线是可以激发辐射样品使其产生光释光信号的。
飞机的问世给人们的出行带来了方便,也增添了许多乐趣。但是、飞机的失事时有发生,使一幕幕惨剧重演,也令人不寒而栗。这些事故除少数系人为破坏或气候恶劣造成的之外,还有不少是
We isolated a microsporidium from the silkworm, Bombyx mori, and classified it as Endoreticulatus sp. Zhenjiang based on morphological characteristics and phylo
Curing of freshly harvested yams (Dioscorea spp.) is a process for wounded yams during harvest to heal. In this work the effectiveness of straw, polypropylene a
Synthetic insecticides are widely known to control insect pest, but due to high operational cost, environmental pollution, toxicity to humans, harmful effect on