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中国科学院植物生理研究所与中国科学院北京植物生理研究室于1月26日至2月2日在上海联合召开了水稻生理工作經驗交流会議,参加会議的共有38个有关單位的代表80余人。在半年多的总結农業丰产經驗的基础上,科学工作者們圍繞土肥水密四个方面热烈地討論了水稻的丰产栽培技术和交流了经驗。 調查表明,在1958年密植,深耕的条件下,增产主要靠增加水稻的主穗来保証,因此,分蘖期間追肥不必过重。而为了达到穗大、粒多的目的,追肥的重点应該放在小穗分化之前,这一时期供給充分的养分,能使稻穗很好地分化,并可防止小穗退化。以后,再在孕穗时施以穗肥,增加籽实重量。
The Institute of Plant Physiology, Chinese Academy of Sciences and the Chinese Academy of Sciences Beijing Plant Physiology Laboratory jointly held a meeting on exchange of experience in rice physiology from January 26 to February 2 in Shanghai. More than 80 representatives from 38 related units attended the conference. On the basis of more than six months of summarizing the experience of agricultural yielding, scientists have heatedly discussed the high-yielding cultivation techniques and exchange of experience on four aspects of soil and water watertighting. The survey shows that in 1958 close planting, deep plowing conditions, the increase is mainly by increasing the main spike of rice to ensure that the top dressing during tillering need not be overweight. In order to achieve the purpose of spike, grain and more, the focus of top dressing should be placed on the spikelet before the differentiation, this period to provide adequate nutrients, make the rice well differentiate, and prevent spikelet degradation. Later, when applied to booting spike fertilizer, increase seed weight.