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首页> 外文期刊>Acta Agronomica >Effect of nitrogen fertilization on productivity and quality of Mombasa forage (Megathyrsus maximum cv. Mombasa)
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Effect of nitrogen fertilization on productivity and quality of Mombasa forage (Megathyrsus maximum cv. Mombasa)

机译：施氮对蒙巴草料产量和品质的影响

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Mombasa grass is very demanding and responsive to soil fertility. The objective of the present study was to evaluate forage production and the correlation among crude protein and the green color index of leaves of Megathyrsus maximum cultivar Mombasa in function of nitrogen levels. The study was conducted using 5 dm-3 pots in a greenhouse at the Universidade Estadual Paulista - UNESP, Jaboticabal, S?o Paulo. The experimental design consisted of randomized blocks with five treatments and four replications. Treatments were nitrogen rates (0, 62.5, 125, 250 and 500 mg dm-3 of N), corresponding to 0, 125, 250, 500 and 1000 kg ha-1 of N. We evaluated the production of grass dry matter, the green color index, the accumulation of nitrogen and crude protein content in the shoot. Nitrogen fertilization increased forage production, crude protein, nitrogen accumulation and green color index of Mombasa grass. There is high correlation of the green color index with the crude protein content.
机译：蒙巴萨草非常苛刻，对土壤肥力有反应。本研究的目的是评估饲草的产量以及粗蛋白（Megathyrsus）最大品种蒙巴萨的叶片的绿色指数与氮水平的关系。这项研究是在Universidade Estadual Paulista-UNESP，Jaboticabal，S？o Paulo的温室中使用5 dm-3盆进行的。实验设计由具有五种治疗和四次重复的随机区组组成。处理方法为氮肥浓度（0、62.5、125、250和500 mg dm-3的氮），对应于0、125、250、500和1000 kg ha-1的氮。我们评估了草干物质的产生，绿色指数，芽中氮的积累和粗蛋白含量。施氮增加了蒙巴萨草的牧草产量，粗蛋白，氮积累和绿色指数。绿色指数与粗蛋白含量高度相关。

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