Root traits of Panicum maximum Jacq. Cv. Tanzânia were evaluated in response to a nutritive solution with combinations of nitrogen and calcium rates. Ground quartz was used as substrate in an experiment carried out in a greenhouse in the spring, using a complete randomized block design, with four replications, in a fractionated 52 factorial scheme, with 13 combinations of nitrogen and calcium, in mmol/L: 2-0.5; 2-3.0; 2-5.5; 9-1.75; 9-4.25; 16-0.5; 16-3.0; 16-5.5; 23-1.75; 23-4.25; 30-0.5; 30-3.0, and 30-5.5. After the […]

In the last years has been a great interest in the irrigation of pastures and the engineering issues, cost of equipment, cost of maintenance of electricity, demand for water and electricity, management irrigation and fertigation. This interest has increased the demand for information and practical advice to help clarify the important aspects as the choice of irrigation system, the potential evapotranspiration (ETo), the culture of coefficient (Kc), the evapotranspiration of the crop (ECc), the shift of water (SW), the selection […]

The root system (pre and post grazing) characteristics of aruanagrass and tanzaniagrass under two nitrogen rates (150 and 300 kg ha-1 N year) grazed by sheep in variable rotational stocking (three to seven grazing days) and variable rest period were evaluated in this study. The treatments were assigned to a complete randomized block (two) design with two replicates (plots = grasses and split-plots = nitrogen rates)within repeated measures. In the pre-grazing tanzaniagrass, averages within nitrogen rates and grazing period showed […]