Abstract
Jengkol and petai are important horticultural crops for the community. In certain seasons, the price of these commodies reach very high. The largest production area are located in Sumatra and Java. Whereas Sulawesi and Eastern Indonesia are relatively few. This study aims to analyze the suitability of land in Sulawesi (Wajo Regency) for jengkol and petai plants. This research used a field survey and laboratory analysis of 2 soil samples (mini pits) in the North and South areas. The parameters measured are temperature, rainfall, humidity, drainage, texture, rough material, soil depth, peat thickness & depth, Cation Exchange Capacity , base saturation, pH, C-organic, salinity, alkalinity, sulfidic depth, slope, erosion hazard, inundation, surface materials and rock outcrops. The conclusion of this study shows that the land in Lempong Village, Bola Subdistrict has Marginal (S3) land suitability with texture and soil depth limiting factors.
Highlights
Jengkol and petai are important horticultural crops for the community
This study aims to analyze the suitability of land in Sulawesi (Wajo Regency) for jengkol and petai plants
The conclusion of this study shows that the land in Lempong Village, Bola Subdistrict has Marginal (S3) land suitability with texture and soil depth limiting factors
Summary
Metode yang digunakan dalam penelitian ini adalah survey lapangan dan analisa sampel tanah dan air. Untuk mendapatkan data karakteristik lahan dilakukan pengamatan pada profile pits dengan membuat 2 mini pits (sampel). Untuk mencapai kedalaman 120 cm, pada dasar mini pit dibor dengan menggunakan bor belgie sampai kedalaman 120 cm. Untuk mengetahui karakteristik kimia tanah telah dilakukan pengambilan contoh tanah pada lapisan atas (top soil, 0-20cm) dan lapisan bawah (sub soil 40-60 cm). Beberapa parameter yang diukur dalam analisa tanah dan air ini adalah: drainase, tekstur, bahan kasar, kedalaman efektif, kematangan gambut, ketebalan gambut, KTK tanah, Kejenuhan Basa (KB), pH tanah, C organik, Total N, P2O5, K2O, salinitas, alkalinitas, kedalaman sulfidik, lereng, batuan di permukaan, singkapan batuan, bahaya longsor, bahaya erosi dan genangan. Analisa tanah dan air ini dilakukan di laboratorium terakreditasi yaitu laboratorium BPTP Balitbangtan, Sulawesi Selatan
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