论文部分内容阅读
1983—1985年间,在上海市农科院新场基点结合大田生产,应用同位素示踪技术进行“增强棉花抗灾能力”的田间试验。同时在院内进行实验室测定,并在青浦县和南汇县进行大面积生产的应用验证,取得了显著而一致的结果。 (一) 移栽深度从现行的营养钵顶与地面相平,加深到钵顶低于地面一寸,或移栽前对土地实行深度为2—3寸的耕翻,对促进根系纵横向的迅速扩展都具有积极作用。主要表现在根量增多,扎根深广,吸收量增加,吸收高峰提早,为缩短缓苗期,争取早发,创造了有利条件。
1983-1985 years, in the Shanghai Academy of Agricultural Sciences base field combined with Daejeon production, the application of isotope tracing technology “to enhance cotton resilience” field trials. At the same time in the hospital laboratory determination, and in Qingpu County and Nanhui County for large-scale production application verification, and achieved significant and consistent results. (A) the depth of transplanting From the top of the current nutritional bowls and the ground level, deepening to the bowl below the ground an inch, or before transplanting the implementation of the depth of 2-3 inches of soil plowing, to promote the vertical and horizontal root of the rapid Expansion has a positive effect. Mainly in the root volume increased, rooted deep, absorption increased, the peak absorption earlier, to shorten the hurried seedling stage, strive for early onset, and created favorable conditions.