Production and chemical composition of Panicum maximum cv. Mombaça under different levels of potassium

Authors

  • Newton Costa Embrapa Roraima

DOI:

https://doi.org/10.22256/pubvet.v6n21.1388

Keywords:

calcium, crude protein, dry matter, magnesium, phosphorus

Abstract

The effect of potassium levels (0, 15, 30, 45 and 60 mg of K/dm3) on dry matter (DM) yield and chemical composition of Panicum maximum cv. Mombaça, was evaluated under greenhouse with natural conditions of light and temperature. Potassium fertilization significantly (P<0.05) increased DM yields and potassium contents, however, crude protein and phosphorus contents were depressed, while calcium and magnesium contents were not significantly affected by potassium fertilization. Maximum DM yield, potassium contents and potassium efficiency utilization were obtained with the application of 51.5; 55.4 and 47.5 mg of K/dm3, respectively. Internal potassium requirement for 90% maximum DM yield was estimated at 1.75%.

Published

2016-09-22

Issue

Section

Pastagem e forragicultura

How to Cite

Production and chemical composition of Panicum maximum cv. Mombaça under different levels of potassium. (2016). Pubvet, 6(21). https://doi.org/10.22256/pubvet.v6n21.1388

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