论文部分内容阅读
以 1 9个杂交中稻品种为材料 ,研究了促芽肥对杂交中稻再生力的作用与头季稻品种间着粒数的关系。结果表明 :头季稻品种间着粒数与其单位颖花的绿叶面积占有量呈极显著负相关关系 ,而头季稻品种着粒数越多 ,其光合产物满足头季稻高产的养分需要后剩余量越少 ;头季稻着粒数较高的品种蓄留再生稻 ,要求促芽肥施用时期提早 ,施用量也更高。
A total of 119 hybrid rice cultivars were used as materials to study the relationship between the effect of fertilized fertilizer on the reproductive vigor of hybrid rice and the grain number of the first crop. The results showed that there was a significant negative correlation between the number of grains in the first crop of rice and the percentage of the green leaf area in the spikelets of the first crop, while the more grains were in the first crop, the photosynthate of the first crop fulfilled the nutrient requirement of the first crop. The less the remaining amount; the first season of rice grains with higher grain-storing ratooning rice, requiring the application of budding fertilizer earlier, the application rate is higher.