DENDROCALAMUS ASPER BACKER. AND BAMBUSA NANA ROXB. PLANTED IN AGROFORESTRY SYSTEM

Abstract

Planting of Dendrocalamus asper Backer. and Bambsa nana Roxb. on agroforestry system were conducted at Huai Tha Forest Experimental Station, Nam Khiang sub-district, Si Sa Ket in October, 1991. Two commercial species, Dendrocalamus asper and Bambusa nana were treated as main treatment. Both bamboo species were planted at 6 m. x 6 m. spacing intercropped with peanut and maize. Thus 6 treatment combinations were included in the experiment. Each treatment combination was established on a 40 m. x 40 m. plot. Completely Randomized Block Design with three replications were employed. The result shows that both species of bamboo produced shoots well during April to September, 1992. Bambusa nana producted higher number of culm than that of Dendrocalamus asper. Bambusa nana was able to produce shoot (culm) of 534.1 shoot / rai or 3383.11 It was shoots / ha. while Dendrocalamus asper produced 98 culms / ha. or 612.5 culms / ha. observed, however, that both bamboo species produced shoots very low number on the plots without agricultural crops intercropping. The first harvesting season showed low production of agricultural products (peanut and maize) on both B. nana and D. asper plots whilst the second harvesting season did higher products. Furthermore, it was found that at the second harvesting season: peanut production harvested from D. asper plots was higher than those being done from B. nana plots. However, when both agricultural products, peanut and mize, harvested from this agroforestry trial were taken in consideration they found that maize gave higher income than that of peanuts on both bamboo species intercropping.