Evaluated the growth of mixed acacia hybrid, Acacia auriculiformis and Melaleuca leucadendra plantations to improve the stability and productivity of forests in Ca Mau

Abstract

The study was conducted to evaluate the survival rate, growth ability and productivity of mixed acacia hybrid, Acacia auriculiformis and Melaleuca leucadendra plantations. Three types of plants were selected for mixed planting: Acacia hybrid (AH7), Acacia auriculiformis (AA9) and Melaleuca leucadendra. The experiment was arranged in a completely randomized block design with 8 mixed treatments, 3 replications. Through the experiment, it was shown that the formula of mixed planting Acacia hybrid 40% + Acacia auriculiformis (AA9) 60% had the highest survival rate at 1.5 years old and 4 years old. For Acacia hybrid, grow according to the mixed formula Acacia hybrid 40% + Melaleuca leucadendra 60% for the best height and diameter. The average trunk volume was greatest in the mixed formula Acacia hybrid 80% + Melaleuca leucadendra 20%. For Acacia auriculiformis, growing according to the mixed formula Acacia 60% + Acacia auriculiformis 40% for the best average height, diameter and trunk volume. For Melaleuca leucadendra, grown according to the mixed formula Acacia hybrid 60% + Melaleuca leucadendra 40% for the best height and diameter. There was no difference in mean stem volume between the mixed treatments in Melaleuca leucadendra. Regarding the productivity of planted forests, Acacia hybrid with the formula Acacia hybrid 60% + Acacia auriculiformis 20% + Melaleuca leucadendra 20% achieved the best yield.