高活性微硅粉对水稻产量的影响

The Effect of High Activity Microsilica Fume on Rice Yield

以宁粳50号为研究对象,设计了0、90kg/hm^(2)、180kg/hm^(2)和270kg/hm^(2)4种不同施硅肥用量处理,研究硅肥对水稻生长发育、光合特性及产量的影响。结果表明:施用180kg/hm^(2)高活性微硅粉可显著提高水稻的光合特性及产量,与CK相比,净光合速率、气孔导度、胞间CO_(2)浓度、蒸腾速率分别增加43.73%、7.8%、10.1%、38.94%。在施用180kg/hm^(2)的高活性微硅粉处理下,水稻的产量增加,品质得到改善,效果最佳。因此,合理适量施用硅肥可有效提高水稻的光合特性,促进水稻增产,具有较高的推广应用价值。

In this paper,taking Ningjing 50 as the research object,four different silicon fertilizer treatments of 0kg/hm^(2),90kg/hm^(2),180kg/hm^(2) and 270kg/hm^(2) were designed to study the effects of silicon fertilizer on the growth and development of rice.The effect of photosynthetic characteristics and yield.The results showed that the application of 180 kg/hm^(2) of highly active microsilica powder could significantly improve the photosynthetic characteristics and yield of rice.Compared with CK,the net photosynthetic rate,stomatal conductance,intercellular CO_(2) concentration,and transpiration rate increased by 43.73%,7.8%,10.1%,and 38.94%,respectively.Under the application of 180kg/hm^(2) of highly active micro-silica powder,the yield of rice was increased and the quality of rice was improved,has the best effect.It can be concluded that a reasonable and appropriate amount of silicon fertilizer can effectively improve the photosynthetic characteristics of rice and promote the increase of rice yield,which has high application value.