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Fertilization of forage sorghum hybrids and yield growth

Rice on top, to accurately reflect the growth process of rice, 3 Lvyan Dong et al: Effect of Fertilization on Forage Growth and sweet sorghum hybrid yield l9 which to guide relevant agronomic measures. The trial will mark Leaf reference to the method of sweet sorghum, and with this method to reflect the growing process of sweet sorghum to take relevant agronomic measures. It can be seen from Figure 2 in the 8 leaf lower the temperature before, grow more rapidly, 2 ~ 4d one leaf. Heng Lu dynamic height 500050005000500 2015 Figure 1 Figure 2 Age Sheng 10a0 fertilizer levels on the dynamic 2.2 in seedling leaves as small, no significant difference between each treatment, 7 months late, due to temperature, rainfall,[link widoczny dla zalogowanych], leaf area among treatments significant differences occurred, and the more the more this difference in the late growth stage large. F to early September the largest 3150.1cm, F. And Fs are close, respectively 1828.6cm. And 1675.3cm; when the leaf area than the F F. And Fs, respectively to 42% and 47% higher. And F. And Fs, respectively, the leaf area late in August and early September appeared decreasing trend, which led to the other main reason for high F treatment. Old Head Old 50000050000050000050007.248.68.219. Leaf area of Figure 3, the dynamic 8070-605011 ��} {40100 Date 8.68.219.4 Figure 4 Accumulation of dry matter per plant fertilizer on 2.3 fertilizer under the F dry matter accumulation of the largest 74.1g,[link widoczny dla zalogowanych], followed by Fs, 67.0g, the lowest F. , 50.6g; F dry matter accumulation than the Fs and F. Respectively 10% and 32% higher. F deal that is conducive to the accumulation of dry matter, but also to increase the yield. 2.4 Effect of Fertilization on First with the increase of fertilizer, when the yield reached the highest F, at 58.3t/hm. ; And then increase with the reduction of fertilizer. The multiple comparison analysis, F and F. There was significant difference (Table 3); F and Fo, F-, F. There were significant differences. The results can be seen through the design of the highest production level F, with the arrangement of the second and third of the Fs, F. No significant difference between treatments; and Fo, F ��, F. There were significant differences,[link widoczny dla zalogowanych], indicating that Level; F level is the best fertilizer. Heilongjiang August First Land Reclamation University 20, No. 18 60.055.0. /, A 50.0 '/ dish F0F1F2F3F4F5 mother 1j45.0 �� fertilizer production in Figure 5 the curves with the fertilization of different fertilizer production Table 3 Comparison of results of treatment of multiple average yield (t / hm.) 5% significance level 1% significant level F58.5aAF56.5abAF. 55.1abAF49.8bcABF. 48.9bcABFo42.1CB3 3.1 Conclusion and discussion of different fertilizer levels on forage sorghum hybrid plant height, leaf area, dry matter accumulation was obvious. Difference between treatments in the order of F4> F> F. ,[link widoczny dla zalogowanych], Which yields the final result is the same, that plant height,[link widoczny dla zalogowanych], leaf area, dry matter accumulation of hybrid forage sorghum, 3.2 Hybrid sweet sorghum forage production is mass production, different fertilizer levels is a key factor affecting the yield. Within a certain amount of fertilizer production of forage sorghum hybrids with the increased amount of fertilizer increases; When the fertilizer reaches a certain level, with the increase in fat content, yield decreased. The results showed that the best forage sorghum hybrids for the urea fertilizer 133.7kg/hm, DAP 186.3kg/hm, potassium sulfate 305.1kg/hm.
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