当归移栽技术研究

来源 :耕作与栽培 | 被引量 : 0次 | 上传用户:hcyzhcyz
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
针对青海省当归生产存在的问题,开展移栽方式、时间、密度方面的田间试验,研究当归不同移栽技术对其成活率、抽薹率、主要质量性状及产量的影响。结果表明,当归种苗移栽以黑地膜全覆盖方式最佳;移栽时间以4月中旬为宜;穴距以株距20 cm、行距30 cm,每穴移栽1株,田间密度每667 m 2保持10000株为宜。
其他文献
Monoclonal antibody technique was employed to detect the conformational difference of CaM induced by metal ions. A trivalent europium ion induced conformation-s
Pepsin-soluble collagen was prepared from bullfrog skin and partially characterized. This study revealed interesting differences, such as molecular weight, amin
目的研究并探讨关节镜下松懈术对于伸直型膝关节僵硬的临床治疗效果。方法选取该院2009年12月—2012年6月门诊所收治的伸直型膝关节僵硬患者,一共68例为该组研究对象,并对所
The condensation reaction between 5-amino-4, 6-dichloro-2-methylpyrimidine and 1-acetyl-2-imidazolin-2-one using POCl3 as solvent gave 4, 6-dichloro-2-methyl-5-
目的 探讨重症监护室呼吸机相关性肺炎患者的护理干预措施.方法 回顾性分析24例重症监护室呼吸机相关性肺炎患者的临床护理干预资料.结果 该组呼吸机相关性肺炎患者中,19例病
A novel approach for analysis of amino acids in individual erythrocytes was established.In this method, the derivatization reagent was introduced into the livin
Allylic acetates were reduced with Pd(O)-Sml2 in the presence of ArsCbR to from corresponding allylic selenides in good yields.
Poly (L-lactide)-poly(ethylene glycol) multiblock copolymers with predetermined block lengths were synthesized by polycondensation of PLA diols and PEG diacids.
Two new bromophenols were isolated from Rhodomela confervoides. Their structrueswere elucidated as 2, 2', 3-tribromo-3', 4, 4', 5-tetrahydroxy-6&#39
自特殊教育提升计划实施以来,F市残疾儿童的义务教育阶段的教育教学工作取得了重要进展,但对学前儿童的关注不够明显。分析当前F市学前融合教育实践层面的问题,从满足学前有