Effectiveness Test of Tagetes erecta L Powder and Cattle Urine Waste that Potentially Repelent ont Boring Pests of Nezara viridula Pods in Soybean (Glycine max L) in Patumbak Subdistrict, Deli Serdang, North Sumatra - Susanti, Rini; Program Studi Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Sumatera Utara (Pasca Sarjana FP USU, 2019)