Effect of seed-bed pre-treatment in the establishment of Siratro (Macroptilium atropurpureum) oversown in Para grass pasture.

Abstract

Improvement of para grass pasture by oversowing with legume was carried out at Kumpangsaen campus, Nakornpathom. Six seedbed pretreatments were applied to controll the competition from the existing grasses. They were cultivation, spraying with paraquat, burning, cut and left, cut and removed and grazing. The results showed that siratro has poorly established and growth was severely restricted when oversown into para grass pasture without cultivation. Establishment and growth. Legume seedlings seem to need ample unoccupied space between the grass stools and severely reduced competition from the existing grasses.