Bamboo Shoot Blanching Physical and Chemical distribution cost edibel coating emulsi minyak farmer group mutu pasca panen retailer subsidized fertilizer tomat ETD Operator’s subjective load Umur simpan bamboo shoots Tabah beban kerja subjektif broccoli chopping machine flat and sloping land hand tractor interrupted package icing lahan datar dan lahan miring loloh piduh model Arrhenius model pengeringan lapisan tipis municipal garbage open windrow organic fertilizer productivity produktivitas rebung bamboo tabah thin layer drying models traktor tangan