EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KENAGARIAN TIMPEH KECAMATAN TIMPEH KABUPATEN DHARMASRAYA

NANDA, ARIANTO ARITONANG (2020) EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KENAGARIAN TIMPEH KECAMATAN TIMPEH KABUPATEN DHARMASRAYA. Other thesis, Universitas Andalas.

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Abstract

The present study was conducted in Timpeh, Timpeh Sub-district, Dharmasraya District from November 2019 until February 2020. The objectives of this study were to determine the level of land suitability and obtain a map of land suitability for oil palm crops. The research method was a survey consisted of 3 stages, there were a pre-survey that aim to obtain the land units (SL), the main survey conducted in the Timpeh, Timpeh Sub-district, Dharmasraya District, and then the soil analysis at the laboratory of the Institute of Agricultural Technology Assessment, Sukarami, Solok District. The classification of the suitability evaluation for oil palm plantations was carried out by the matching method, by compared the land characteristics of each land unit with the plant growth requirements of oil palm crops. Based on the research results, it was found that the actual land suitability for SL 1, SL 2, SL 3, SL 5, and SL 9 were on S3eh class (marginal suitable) with the limiting factor of erosion hazard. In SL 4 and SL 8, the class was quite suitable (S2) sub-class S2wa,nr with limiting factors were the water availability and nutrient retention. In SL 6, the class was marginal suitable (S3) sub-class S3nr,eh with the limiting factors were the nutrient retention and the erosion hazard, and in SL 7, the class was S3 sub-class S3nr with the limiting factor was the nutrient retention. Potential land suitability was found in SL1, SL 2, SL 3, SL 5, SL 6, SL 7, and SL 9 which have sufficiently suitable classes (S2), while in SL 4 and SL 8 were the appropriate class (S1). Improvement efforts on land are in the form of terraces, mounds, land cover vegetation, liming and the use of organic and inorganic fertilizers. Keywords: evaluation, land suitability, oil palm, nutrient retention, erosion hazard

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