浅谈提高棉花繁种品质与产量

来源 :种子世界 | 被引量 : 0次 | 上传用户:LVBIN0077
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
棉花良种在提高棉花单产上有着十分重要的作用。棉花是双子叶作物,顶土能力差,一播保全苗是棉花增产的关键。因此棉花的播种品质与产量表现又有着密切的关系。本文试图从棉花栽培途径就如何提高棉花繁种品质与产量作如下探讨。 Cotton varieties have a very important role in improving cotton yield. Cotton is a dicotyledon crop, top soil ability is poor, a broadcast security seedlings is the key to cotton yield. Therefore, the sowing quality of cotton and yield performance are closely related. This paper attempts to explore ways to improve the quality and yield of cotton from the cotton cultivation approach as follows.
其他文献
This paper proposes a scheme to teleport an arbitrary mixture of diagonal states of multiqutrit via classical correlation and classical communication. To telepo
In this paper, we make use of the auxiliary equation and the expanded mapping methods to find the new exact periodic solutions for (2+1)-dimeusional dispersive
吉林省通化市农科所从1973年开始高蛋白大豆育种,经多年努力,于1987、1992年已育成两个高蛋白大豆品种——“通农9号、10号”。“通农9号”品种含蛋白质46.41%。脂肪18.26%,
北京农大研制成功。这一系统是应用农民群众积累的植棉经验,模仿思维活动,对大量数据、经验、知识进行判断、推理、决断,既可采用经概括的理论知识又可采用田间的直接经验。
This paper analytically investigates the interaction of light filaments generated by a femtosecond laser beam in air. It obtains the Hamiltonian of a total lase
This paper studies a time delay equation for sea-air oscillator model. The existence and asymptotic estimates of periodic solutions of corresponding problem are