| Effect of application of silicon fertilizer to source-store relationship of spring wheat after flowering |
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| DOI：10.7606/j.issn.1000-7601.2014.06.020 |
| Key Words: silicon fertilizer spring wheat source-store characteristics production |
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| Abstract: |
| Taking two types of spring wheat cultivars of Longmai 26 (non-density tolerance) and Kehan 16(density tolerance) of Heilongjiang Province as for materials, carried out the experiment of different quantity of silicon fertilizer under the condition of field mechanical sowing. Through measuring the photosynthetic performance at the different growth period, grain-filling rate and yield constitute factors, were searched and clarified the effects of base silicon fertilizer to source-store characteristics and yield of spring wheat. The results showed that: The source-store relationship of wheat can be coordinated by base silicon fertilizer, making the wheat source sufficient and large store. The spike length and spikelet number were increased of two spring wheat varieties after application of silicone fertilizer, but the weight of thousand seeds did not reach the significant level. The grain numbers and grain weight per spikelet were increased for non-density tolerance variety of wheat and the spikelet numbers were increased for density tolerance variety by using silicon fertilizer. The optimal applied amount of silicon fertilizer was 30 kg·hm-2 and 60 kg·hm-2 respectively for non-density tolerance variety of Longma
i 26 and density tolerance variety of Kehan 16. If use too much silicon fertilizer will have disadvantage effect. |