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1)本试验公系初试,且规模甚小限制取样;而某一类植物的光合生产率又可能与当年气候条件有关。因此,这类试验应有数年之重复始能得一肯定秸果。本篇文章只供参考。2)与前人所测定的其他作物以及与本篇所测定之蚕豆相比。水稻有较高的光合生产率。3)水稻及蚕豆的光合生产率均具有两个高峯。前一高峯似乎与营养器官之迅速生长有关,后一高峯似与生殖器官之迅速生长有关。但在此两高峯时期,是否光合强度最高,以及此时期是否应予追肥(尤其后一高峯时叶片喷肥),是值得研究的一个问题。4)蚕豆植株在施肥灌溉条件下,单位叶面积的工作效率大大提高。植株的生物学部分及经济部分(子粒)均相应增重。对水稻而言,在什么条件下能提高其光合生产率,值得进一步研究。
1) The test was conducted on a first attempt of the public and the sampling was limited to a very small scale. The photosynthetic productivity of a certain type of plant may be related to the current climatic conditions. Therefore, such tests should be repeated for several years to get a positive result. This article is for reference only. 2) Compared with other crops measured by predecessors and the fava beans measured in this article. Rice has higher photosynthetic productivity. 3) Both photosynthetic rate of rice and faba bean have two peaks. The previous peak appeared to be related to the rapid growth of vegetative organs, the latter peak related to the rapid growth of reproductive organs. However, at these two peak periods, whether photosynthetic intensity is the highest or not, and whether top-dressing should be given up at this period (especially after the last peak) is a problem worth studying. 4) The efficiency of unit leaf area in faba bean plants increased greatly under the condition of fertilization and irrigation. The biological part and the economic part of the plant (seeds) are corresponding weight gain. For rice, under what conditions can increase its photosynthetic productivity, it is worth further study.