Ash Analysis The analyses of forage quality
25 effects of light quality on whole plant mineral nutrient uptake and status have
been little studied Aphlaho 2006. In actual condition forage plantation was forced by the limitation of sun
availability that could be influence forage production. This condition occurred as the impact of competition both the trees and its plant. In general, plants have two
main strategies in response to light competition: overgrow and shade the competitors andor tolerate shade by maximizing growth under reduced light
Humphreys 1981. The former was obviously not a viable strategy for pasture plants growing in association with trees. However, tropical grasses were differing
in their tolerance of shade. Several data were gained as its responses regarding to different levels of solar radiance, the utilization of organic fertilizer and
defoliation management. The information consists of variations including forage yield, plant architecture plant layer height, and leaf area also chlorophyll
concentration. In the early respond was provided the measurement on forage yield production on P. purpureum.
Table 7. The Measurement forage yield Mgha P. Purpurem on different levels of shade, organic fertilizer and defoliation management treatments.
Levels of shade
Organic Fertilizer Mgha
Defoliation management 40d
50d 60d
30 47.8±4.9
35.6±18.5 28.7±4.4
20 26.8±5.9
29.0±10.0 19.2±3.2
10 25.0±7.3
27.9±3.8 29.5±11.1
60 30
35.7±5.6 35.4±0.8
23.1±5.7 20
21.7±2.0 26.4±5.9
25.9±4.2 10
21.4±1.4 22.9±1.8
15.1±4.8 80
30 18.9±6.3
23.9±4.1 14.3±2.8
20 13.5±2.8
14.6±5.5 16.8±5.1
10 8.1±2.8
14.3±2.7 11.8±7.4
Table 7 showed the measurement on forage yield P. purpureum on different treatments. The data illustrated that levels of shade, organic fertilizer and
defoliation management were persuaded on forage yield on P. purpureum. The study showed that yield production depressed as the less number of irradiance
accepted by plants. At the same time, the utilization of higher amount of organic fertilizer enlarged yield production compared with less organic fertilizer. It was
observed underneath shading condition, the forage yield was reducing, but it could be enhance by adding the organic fertilizer. Underneath shading condition