Pengaruh Interval Pemotongan dan Invasi Gulma Chromolaena odorata terhadap Produksi dan Kualitas Rumput Brachiaria humidicola
Abstract: An excellent animal
performance has to be supported by feed availability. Quality and quantity of
forages are important factors. The existence of weeds significantly decreases
rate of production and quality of herbage. Physically weed control by
defoliation could be expected to sustain quality and production of herbage, and
able to control weeds expansion. The aims of the study were to find the effect
of interval defoliation of B. humidicola that was invaded by C. odorata and its
effect on production, crude protein, phosphor, calcium contents of B.
humidicola herbage, production and population dynamic of C. odorata. The
treatments were nine different planting methods and different defoliation
intervals, namely: B. humidicola was defoliated every 30 days without C.
odorata (P1); B. humidicola was defoliated every 60 days without C. odorata
(P2); B. humidicola was defoliated every 90 days without C. odorata (P3); B.
humidicola were defoliated every 30 days, C. odorata were not defoliated (P4);
B. humidicola were defoliated every 60 days, C. odorata were not defoliated
(P5); B. humidicola were defoliated every 30 days, C. odorata were not
defoliated (P6); B. humidicola and C. odorata were defoliated every 30 days
(P7); B. humidicola and C. odorata, were defoliated every 60 days (P8); B.
humidicola and C. odorata were defoliated every 90 days (P9). Two experiment
designs namely Completely Randomized Block Design and Split Plot Design in Time
were used in the field experiments. The result of the experiments showed that
dry matter production of B. humidicola which were defoliated every 90 days were
not significantly different than those defoliated every 60 days, but it was
significantly higher than those defoliated every 30 days. Crude protein,
phosphor, and calcium content of herbage which were defoliated every 30 days
were significantly higher than those defoliated every 60 days and 90 days.
Present and defoliation of C. odorata did not affect the herbage production,
and phosphor content, but it decreased crude protein and calcium content of B.
humidicola herbage.
Penulis: Mansyur, H Djuned, T
Dhalika, S Hardjosoewignyo, L Abdullah
Kode Jurnal: jppeternakandd050025
