The Potential of Some Pasture Plants in the Sisal Areas of the Tanga Region of Tanzania

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Hopkinson D.
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A number of grasses were established in collection plots and in mixtures with each of four legumes in O.I-ha. observation plots. Half of each observation plot was fertilized with P and K. The proportion of legume surviving in the sward was strongly affected by the number of plants of the legume which established successfully and by the species of the companion grass. The grasses differed considerably in their ability to persist when invaded by the naturally occurring grass Panicum trichocladum. Pennisetum purpureum gave the highest yield, but apart from this, the yields were all of a similar order. There was a marked response to P + K fertilizer but the fertilizer did not have much effect on the grass/Iegume balance in the mixtures. The overall level of yield was about 9,000 kg. dry matter per ha. in a year without fertilizers, and about 15,000 kg. with fertilizer. The crude protein content of the total herbage averaged about 9 per cent, and was increased only slightly by the presence of legumes.
East African Agricultural And Forestry Journal, XLIV (No. 4), p. 299-310