蒙巴萨草在磷源和磷量对施肥形成的影响下的响应

J. S. S. Carneiro, Paulo Sérgio Santos Silva, Antônio Carlos Martins dos Santos, G. A. D. Freitas, Rubens Ribeiro da Silva
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引用次数: 4

摘要

这是塞拉多低磷有效性的特点,需要在肥料中添加磷以获得满意的牧场生产力。本研究旨在评价不同磷肥用量和不同来源对禾草施肥的影响。蒙巴萨。这项实验是在托坎廷斯-古鲁皮联邦大学校园进行的。实验设计为4 × 6阶乘随机分组。第一个要素由四种磷肥组成:UFT肥沃、天然磷肥、Basifos和简单过磷酸钙。第二组包括六剂磷(0;35;70;140、210和280 kg ha-1 P2O5)。不同来源和磷水平的施肥对草料产量有显著影响。蒙巴萨,增加了草高、分蘖数、鲜重、地上部干重和叶片叶绿素指数。蒙巴萨草产量最高的是UFT肥沃、天然磷酸盐、碱性磷酸钙和简单过磷酸钙,分别施用280、215、239和207 kg ha-1 P2O5。草料产量最高的是Basifos肥。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Response of grass Mombasa under the effect of sources and doses of phosphorus in the fertilization formation
It is characteristic of the Cerrado low phosphorus availability, requiring the inclusion of phosphorus in fertilizers to obtain satisfactory productivity of pastures. This study aimed to evaluate the effect of doses and sources of phosphorus fertilizers on grass establishing fertilization Panicum maximum cv. Mombasa. The experiment was conducted at the Federal University of Tocantins - Gurupi Campus. The experimental design was a randomized block in a factorial 4 x 6. The first factor consists of four phosphate fertilizer: UFT Fertile, Natural phosphate, Basifos and Simple superphosphate. The second consists of six doses of phosphorus (0; 35; 70; 140, 210 and 280 kg ha-1 P2O5). The fertilization with different sources and phosphorus levels influenced significantly the forage production Panicum maximum cv. Mombasa, increasing grass height, number of tillers, green mass, dry weight of shoot and Falker chlorophyll index. The largest production of Mombasa grass was in doses of 280, 215, 239 and 207 kg ha-1 P2O5 for sources UFT Fertile, Natural phosphate, Basifos and Simple superphosphate respectively. The Basifos fertilizer provided the highest yield of forage.
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