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Analisis Daya Dukung Tata Air untuk Monitoring Kinerja Pengelolaan DAS Poleang, Sulawesi Tenggara La Gandri; Hasbullah Syaf; Musram Abadi; Umar Ode Hasani; La Ode Kasno Arif; Albasri
Al-Ard: Jurnal Teknik Lingkungan Vol. 8 No. 2 (2023): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v8i2.1731

Abstract

The carrying capacity of water resources for various uses is highly dependent on the condition of the quality, quantity and continuity of water in a watershed. The lack of research conducted in the Poleang Watershed greatly limits information regarding the carrying capacity of the watershed. This study aims to determine the carrying capacity of the watershed based on water management indicators in the Poleang watershed. The method used in this study uses Minister of Forestry No. P.61/Menhut-II/2014 concerning monitoring and evaluation of watershed management with 5 parameters namely Flow Regime Coefficient, Annual Flow Coefficient, Sediment Load, Flood, and Water Use Index. The results showed that KRA in the Poleang watershed was in the category of KRA ≤ 20 with very low class, KAT was in the category of 0.2 < KAT ≤0.3 with low class, MS reached 97.25 tons/day so it was in the category of M> 20 with very high class, flooding occurs 1 time a year with high class, IPA reaches 1,299.9, so it is in the category of IPA ≤1,700 with very bad class. So that it can be concluded that the carrying capacity of the Poleang water system is included in the medium carrying capacity class
EFFECT OF ”KOMBA-KOMBA” PRUNING COMPOST AND PLANTING TIME OF MUNGBEAN IN INTERCROPPING WITH MAIZE ON YIELD AND SOIL FAUNA Laode Sabaruddin; Laode Muhammad Harjoni Kilowasid; Hasbullah Syaf
AGRIVITA Journal of Agricultural Science Vol 35, No 1 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i1.184

Abstract

Soil fauna plays an important role in decomposition and nutrient mineralization. The objective of this research was to study the effect of "komba-komba" compost and planting time of mungbean intercropped with maize on yield and soil fauna. The research was conducted in research station of Agricultural Faculty, Haluoleo University. The experiment was laid out using split plot design with two factors ("komba-komba" compost and planting time of mungbean intercropped with maize). The result indicated that the highest net assimilation rate (NAR) of mungbean 5.78 g per cm2 per week was obtained in the komba-komba compost 10 ton per ha  with planting time of mungbean at 14 days after planting (DAP) maize whereas NAR of maize 5.50 g per cm2 per week was obtained in the planting time of mungbean at 14  DAP maize. Coleoptera and Hymenoptera (Formicidae) were dominant and Shannon's diversity index ranged between 0.32 and 1.28. LER values tended to increase with the addition of "komba-komba" compost in soil and time variation of planting mungbean intercropped with maize. The relation between Shannon's diversity and LER values was variable. Keywords: soil fauna, compost, intercro-pping, planting time, assimilation, LER