Effect of applying silicon fertilizer on rapeseed

We have carried out research on the application of silicon fertilizer in the production of oil raisins and achieved certain results.
1 Silicon fertilizer can increase rapeseed yield In Xinhe Town, silicon fertilizer is used as a sealing fertilizer when transplanting with rapeseed. The silicon fertilizer contains 25% soluble SiQ2, which is compared with the control in the amount of 15, 30, 45, 60 kg of silicon fertilizer.
(1) Favorable rape growth After the application of silicon fertilizer in rapeseed, the growth bond is strong, the green leaves are increased, and the stem base is thickened. The top view diameter also increased compared to the control. According to the investigation of seedlings in the spring, the number of green leaves of rapeseed with 30kg of silicon fertilizer increased by 1.8%, the stem base increased by 4.35%, the top diameter increased by 2.17%, and the axillary bud increased by 30%.
(2) It can increase the yield of oil and oil. The growth of 30kg silicon fertilizer is better than that of the control. After bolting, the red stem is more than the control, the moss is short and thick, the first branch is lower than the control, the branch is more, the number of knots Higher than the control, the rate of negative anion decreased, the yield increased significantly, and the yield increased by 8.4% compared with the control.
(3) Economic benefits The different application rates of silicon fertilizer also had different effects on the yield of rapeseed. The yield of rapeseed with 15, 30, 45, 60 kg of silicon fertilizer per mu increased by 3.99%, 9.4%, and 11.91, respectively, compared with the control (132.7kg/mu). % and 14.02%. Based on the purchase price of 1.78 yuan/kg and silicon fertilizer 0.5 yuan/kg in recent years, the output value increased by 6.36, 5.62 and 3.11 yuan/mu respectively.
The demonstration field test showed that the average net increase was 6.83 yuan/mu.
2 The economical dosage of silicon fertilizer The application of different amounts of silicon fertilizer can promote the growth of rapeseed, and the yield increases with the increase of the amount of silicon fertilizer. The calculation shows that the best economical consumption of such silicon fertilizer is 32.78kg/mu based on the principle of equal marginal cost and marginal profit.
3 Conclusions The application of silicon fertilizer in rapeseed can promote growth, increase the stem base, reduce the branching node, and have a significant effect on enhancing the lodging resistance of rapeseed. At the same time, it increases the branching, improves the oily knot angle, the seeding rate, and reduces the angular rate. Increasing the 1000-grain weight to increase production, and increasing the yield is large, it is worth promoting.
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