THE IMPACT OF PESTICIDE TYPES AND FERTILIZER COMBINATIONS ON THE QUALITY AND PERMETHRIN RESIDUES IN SWEET CORN (ZEA MAYS SACCHARATA)

The use of synthetic chemical pesticides such as Permethrin and excessive inorganic fertilizers can have negative impacts on the environment, health, and production costs. This study tested a combination of organic fertilizers (compost and cow manure) with bioinsecticides (Mikania micrantha) to reduce pesticide residues and improve the quality and yield of sweet corn. The method used was a two-factor factorial randomized block design (ARG) with two factors: fertilizer type (P0: chemical fertilizer, P1: cow manure 4 kg/plot, P2: compost 4 kg/plot) and pesticide type (I0: no pesticide, I1: Insecticide 2 ml/L, I2: Biopesticide 0.5 ml/L). The results of the study show that the combination of cow manure and biopesticide (P1I2) can significantly increase the weight of corn cobs per plot by 1.23 kg/plot. Furthermore, the application of insecticide and biopesticide at the recommended dosage does not affect the level of permethrin residue (still within safe limits), which is