Pengaruh Kombinasi Pupuk Majemuk NPK Dengan Kascing Terhadap Produktivitas Tanah Andisols dan Hasil Kentang (Solanum Tuberosum L.)

Prosiding Konser Karya Ilmiah Nasional 2016. “Komunikasi Hasil Riset, Pengabdian Masyarakat, dan Produk-Produk Unggulan yang Berdaya Saing”, p. 61-70One effort to increase the yield of potatoes is to control the level of soil fertility with the use of organic and inorganic fertilizers. The use of vermin compost believed to increase soil fertility and can improve plant growth. This research was conducted to find out the effect of NPK compound fertilizer with vermin compost on N-Total, Organic Carbon, N uptake and yield of potato (Solanumtuberosum L.) in Andisols Kertasari. The research was carried out on March until June 2015, at farmers fields Cikembang Village, District Kertasari, Bandung regency, West Java at 1,500 meters above sea level. This experiment was set up in Randomized Block Design, with eight treatments and three replications. The treatment consisted of without fertilization; Treatment of farmers (10 t ha-1Manure Chicken + 1000 kg ha-1 NPK Compound Fertilizer); 0, 5,10 t ha-1 Vermicompost; 0, 500, 1000 kg ha-1 NPK Compound Fertilizer. The results showed that the combination of NPK Compound Fertilizer with vermicompost significanton pH and available P and yield of potatoes. Treatment of 10 t ha-1 chicken manure fertilizer+1000 kg ha-1 NPK Compound Fertilizer was the best fertilizer treatment because provide the highest yield of potat