ผลของวัสดุปลูกต่อการเจริญเติบโตของต้นกล้าปาล์มน้ำมัน

Abstract

The quality oil palm seedlings are dependent on good nursery management and practices. The objective of this study was to compare growth acceleration of oil palm seedlings (FNR-PSU. 1) during the nursery stages. In the first part, there were conducted to evaluate the effect of different growing medias and fertilizer managements on the growth of oil palm seedlings. The last part, seedlings were planted in the hydroponics system in order to promote the growth and development of oil palm seedlings during the nursery stage lasts 5-10 months. Results showed that peat moss gave the highest values of growth parameters (height, number of leaves, canopy diameter, stem diameter and biomass), as compared with top soil seedlings. However, the different fertilizer managements did not show much influence on growth parameters which were slightly higher for the standard chemical fertilizer + foliar fertilizer + humic acid than 100% standard chemical fertilizer seedlings. Moreover, top soil + tea grounds significantly affected height, number of leaves, canopy diameter and biomass on seedlings. Also, the peat moss mixture had a positive effect on root length. However, all growth parameters of seedlings in the coffee grounds mixture were significantly lower compared to seedling grown in the other growing media. To evaluate growth acceleration in hydroponics systems, the growth and physiological properties of oil palm seedlings were affected by hydroponic technique which was much faster than growing them in the planting media. Also, the well-developed seedlings with optimum vigor (height, canopy width, leaf area, stomatal conductances, chlorophyll content and TNC) were found in nutrient flow technique (NFT) and appeared more affected in the deep flow technique (DFT). In addition, when growing hydroponically, vegetative growth (height, no. of leaf, stem diameter, canopy width, leaf area, chlorophyll contents and biomass) of the oil palm seedlings were significantly affected in the nutrient flow technique, compared to seedling grown in the top soil (control). This study indicates that peat moss or top soil + tea grounds can be a growing media for oil palm seedlings production. Although soil based mixes are commonly used forms of growing media for oil palm seedlings production. This study provides useful information for growing hydroponic systems for oil palm seedlings, especially in nursery stage.