Population growth and regional expansion has increased land needs for settlement, agriculture, and trade in the Palu watershed causing much pressure on the upper part of the watershed where Miu watershed is situated The general aim of the research was to generate strategy for sustainable land resources management in the Miu watershed as a buffer zone of the Lore-Lindu National Park. The objective of the research were 1) to predict soil erosion and sedimentation, 2) to analyze the feasibility of dominant farming systems, 3) to analyze rural development, and 4) to analyze community preference on land use priority. The erosion and sedimentation, and feasibility research was conducted through soil survey and socio-economic approach. The rural development index was determined using secondary data taken from related institution such as demography, regional structure and infra structure, and industrial-trade condition. The preferential analysis of land use priority for 10 years ahead was done using focus group discussion with farmer community leaders. The soil erosion rate was light - heavy whilst the soil erosion index was low - very high estimated by the USLE. The relationship between the river debit and suspended load at the upper and lower part of the watershed was found to follow the equation of Y= 0.001X1.366 (R2= 0.65), and Y = 0.001 X1.409 (R2 = 0.66), respectively. Three villages included Pakuli, Pandere, and Bolapapu had high index of rural development whereas low index was found in Lonca, Bangga and Tangkulowi. The high-low order of land use priority was agro forestry, cacao monoculture, fresh water fishery, wetland rice, ruminant grazing, mixed culture of rice, soy bean, cassava and maize, and poultry farming.
Applying organic matter to the soil surface is an effective effort to increase soil resilience in the Palu valley, which is classified as low. This study aimed to determine: 1) the effect of several doses of compost on the physico-chemical properties of the soil, 2) the correlation between the percentage of organic carbon and total nitrogen in the soil to several physico-chemical properties of the soil. The research was based on a randomized block design in a greenhouse of the Faculty of Agriculture, Tadulako University, Palu. Compost uses raw materials for plantain stems (Musa textilia) and leaves of Gamal (Gliricidia sepium). The compost doses used in the experiment consisted of 0%, 1%, 2%, 3%, 4%, and 5% of the weight of air-dry soil, respectively. The treatment was repeated three times. The results showed that compost application significantly affected soil content weight, total porosity, saturated hydraulic conductivity, field capacity moisture content, percentage of organic carbon, total nitrogen, and cation exchange capacity. The correlation test results showed a powerful relationship between the percentage of organic carbon or total soil nitrogen to other soil physico-chemical properties observed in the experiment.
Tujuan kegiatan adalah : 1) mengidentifikasi kualitas pupuk organik yang diperkaya dengan bahan-bahan lokal, 2) menentukan pengaruh pupuk organik diperkaya terhadap beberapa sifat fisik tanah, pertumbuhan dan hasil padi, 3) mengidentifikasi beberapa faktor dominan yang mempengaruhi kinerja kegiatan kelompok tani mitra. Kegiatan dilaksanakan di Desa Bolapapu, Kecamatan Kulawi, Kabupaten Sigi menggunakan metode penyuluhan, demonstrasi plot percobaan, dan diskusi kelompok terfokus. Hasil analisis beberapa kandungan pupuk organik yang dihasilkan mitra telah memenuhi kriteria baku mutu produk nasional, Pengggunaan pupuk organik di lapang menunjukkan pengaruh nyata terhadap beberapa sifat fisik tanah, pertumbuhan dan hasil tanaman padi. Faktor-faktor dominan yang mempengaruhi kinerja kelompok tani mitra adalah pengalaman berusaha tani, luas lahan garapan dan besarnya pendapatan petani.
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