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Effectiveness of activated biochar from rubber (Hevea brasiliensis) seed shells and epicarp as an amelioration material against pesticide residues in soil
Sumihar Hutapea - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Effectiveness of activated biochar from rubber (Hevea brasiliensis) seed shells and epicarp as an amelioration material against pesticide residues in soil
ผู้แต่ง / หัวหน้าโครงการ (EN): Sumihar Hutapea
บทคัดย่อ (EN): Biomass waste can be used as amelioration agent against pesticide residues that contaminate agricultural land. Pesticide was widely used on horticultural crops like chillies, onion and on tuberous crops in Karo District. This study aimed to determine the capacity of activated biochar from epicarp and rubber seed shells to adsorb pesticide in the soil. This experiment used two soil samples from Sukanalu and Korpri village, Karo District, North Sumatera-Indonesia. Each soil sample was equilibrated with varying concentration of cypermethrin and chlorpyrifos, i.e 3, 6, 9, and 12 ppm. Langmuir and Freundlich isotherms model were used to explain equilibrium adsorption. Freundlich isotherm showed adsorption capacity of cypermethrin by about 1.786 mg/g (R2=0.963) for Sukanalu and 1.247 mg/g (R2=0.983) for Korpri soil samples. Adsorption capacity of chlorpyrifos was about 2.529 mg/g (R2= 0.905) for Sukanalu and 5.395 mg/g (R2=0.929) for Korpri soil samples. Adsorption capacity of biochar was higher when incorporated in Kopri soil sample. Soil clay, organic matter and pH influenced the adsorption capacity.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): adsorption capacity
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
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Effectiveness of activated biochar from rubber (Hevea brasiliensis) seed shells and epicarp as an amelioration material against pesticide residues in soil
Sumihar Hutapea
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
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