Abstract
Marginal Rate of Technical Susbtitution in Combined Use of Fertilizer in LargeRed Chili Farming in Baturiti Village Tabanan RegencyLarge red chilli farming is intensive farming, so farmers in managing their farmingexperience various problems, both problems in farming and environmental issues.The purpose of this study was to determine: (1) marginal rate of technicalsubstitution (MRTS) from a combination of the type of fertilizers used, (2) the effectof changes of the use of fertilizers on the use of other fertilizers, and (3) theoptimization of allocation combinations of fertilizers in big red chili farming,whether it had qualified for optimal requirements. The results showed that, from acombination of fertilizers (urea, ZA, KCl, TSP, NPK) used by large red chili farmers,only NPK fertilizer which wassubstitutable with ZA fertilizers and urea fertilizerswhile other fertilizers are complementary in nature, MRTS of urea with NPKof0.058, and MTRS ZA with NPK of 0.118. NPK fertilizers were not perfectsubstitutes of the ZA and the urea fertilizers. The substitution abilitywas only 11%against ZA and 13% against urea. From the combination of the use of fertilizers inlarge red chillifarming, none of the combinations was optimal. It is suggestedfarmers should improve their skills in the use of a combination of various types offertilizers in chillifarming, so that costs can be minimized andthe profit of farmingcan be maximized.
Highlights
Bali yang merupakan daerah pariwisata, rumah makan, dan restoran berkembang sangat pesat yang mengakibatkan permintaan akan cabai sebagai salah satu bahan bumbu sangat perlu mendapat perhatian
The purpose of this study was to determine: (1) marginal rate of technical substitution (MRTS) from a combination of the type of fertilizers used, (2) the effect of changes of the use of fertilizers on the use of other fertilizers, and (3) the optimization of allocation combinations of fertilizers in big red chili farming, whether it had qualified for optimal requirements
The results showed that, from a combination of fertilizers used by large red chili farmers, only NPK fertilizer which wassubstitutable with ZA fertilizers and urea fertilizers while other fertilizers are complementary in nature, MRTS of urea with NPKof 0.058, and MTRS ZA with NPK of 0.118
Summary
Dalam tabel 1 nampak bahwa, penggunaan pupuk telah sesuai dengan anjuran. Dari lima macam pupuk yang digunakan, hanya dua yang berpengaruh nyata yaitu pupuk urea dan NPK terhadap produksi, sedangkan Za, KCl dan TSP tidak berpengaruh. Ini artinya ketiga pupuk ini penggunaannya telah maksimum pada luas garapannya. Pupuk urea dan NPK masih mempunyai peluang untuk ditambahkan agar m produksi meningkat. Tambahan 1kg urea masih dapat meningkat produksi 1,463 kg/ha, dan tambahan 1 kg pupuk NPK akan dapat meningkatkan produksi 12,092 kg/ha. 4.2 Marginal Rate of Technical Substitution (MRTS) Analisis MRTS ini menunjukkan nbagaimana hubungan antara input khususnya input pupuk yang dialokasikan oleh petani dalam usahatani cabainya, apakah bersubstitusi ataukah komplementer. Hasil analisis dari lima jenis pupuk yang digunakan disajikan dalam table berikut
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