i ABSTRAK
Wilman Nugraha, 2012. Pengaruh Kombinasi Abu Vulkanik Merapi, Pupuk Kandang Sapi dan Tanah Mineral terhadap C-Organik, N-Total, Bahan Organik dan Pertumbuhan Tanaman Jagung Hibrida (Zea mays L.). Dibimbing oleh Abraham Suriadikusumah dan Rina Devnita.
Penelitian ini dilakukan untuk mengetahui pengaruh kombinasi abu vulkanik Merapi, pupuk kandang sapi dan tanah mineral terhadap C-organik, N-total, Bahan Organik dan pertumbuhan tanaman jagung hibrida. Penelitian dilaksanakan dari bulan April hingga Juli 2011 dalam rumah kasa di kebun percobaan Fakultas Pertanian, Universitas Padjadjaran, Jatinangor, dengan ketinggian tempat ± 740 m dpl. Penelitian ini menggunakan rancangan acak kelompok faktor tunggal dengan sembilan perlakuan dan tiga kali ulangan. Perlakuan terdiri dari (I) 0% abu vulkanik + 50% pupuk kandang sapi + 50% tanah mineral, (II) 40% abu vulkanik + 10% pupuk kandang sapi + 50% tanah mineral, (III) 30% abu vulkanik + 20% pupuk kandang sapi + 50% tanah mineral, (IV) 20% abu vulkanik + 30% pupuk kandang sapi + 50% tanah mineral, (V) 10% abu vulkanik + 40% pupuk kandang sapi + 50% tanah mineral, (VI) 40% abu vulkanik + 50% pupuk kandang sapi + 10% tanah mineral, (VII) 30% abu vulkanik + 50% pupuk kandang sapi + 20% tanah mineral, (VIII) 20% abu vulkanik + 50% pupuk kandang sapi + 30% tanah mineral, (IX) 10% abu vulkanik + 50% pupuk kandang sapi + 40% tanah mineral.
ii ABSTRACT
Wilman Nugraha, 2012. Combination Effect of Merapi Volcanic Ash, Cow Manure, and Mineral Soil on Organic Carbon, Total N, Organic Material and Growth of Maize (Zea mays L.). Supervised by Abraham Suriadikusumah and Rina Devnita.
This research was conducted to find out the combination effects of Merapi volcanic ash, cow manure and mineral soil on Organic Carbon, Total N, Organic Material and Growth of Maize (Zea mays L.). The pot experiment in a screen house was carried out from April until July 2011, in the field of Agricultural Faculty, University of Padjadjaran, Jatinangor at ± 740 m above sea level. The experiment used a Randomized Block Design which arranged in one factor, nine treatments and three replications. The nine treatments consisted of (I) 0% volcanic ash + 50% cow manure + 50% mineral soil, (II) 40% volcanic ash + 10% cow manure + 50% mineral soil, (III) 30% volcanic ash + 20% cow manure + 50 mineral soil, (IV) 20% volcanic ash + 30% cow manure + 50% mineral soil, (V) 10% volcanic ash + 40% cow manure + 50% mineral soil, (VI) 40% volcanic ash + 50% cow manure + 10% mineral soil, (VII) 30% volcanic ash + 50% cow manure + 20% mineral soil, (VIII) 20% volcanic ash + 50% cow manure + 30% mineral soil and (IX) 10% volcanic ash + 50% cow manure + 40% mineral soil.
