Uji Efektivitas Pupuk Organonitrofos dan Kombinasinya dengan Pupuk Kimia Terhadap Pertumbuhan, Serapan Hara dan Produksi Tanaman Jagung Manis (Zea mays saccharata ) di Musim Tanam Ketiga pada Tanah Ultisol Gedung Meneng
ABSTRACT: Organonitrofos
fertilizer is organic fertilizer derived from cow manure enriched with rock
phosphate and microbial activity involves fastening N and phosphate newly developed
solvent. This study aimed to determine dose combination Organonitrofos fertilizers
and inorganic fertilizers are most effective against the growth, nutrient uptake,
and yield of sweet corn. This research was conducted in November 2012 until March
2013 in the Integrated Field Laboratory, University of Lampung using Random Design
(RBD) consisting of 6 treatments with 3 groups. Treatment A (control), B (300 kg
Urea ha -1 , 200 kg of SP-36 ha -1 , 100 kg of KCl ha -1 ), C (225 kg Urea ha
-1 , 150 kg SP-36 ha -1 , 75 kg KCl ha -1 , 1000 kg Organonitrofos ha -1 ), D
(150 kg Urea ha -1 , 100 kg of SP-36 ha -1 , 50 kg of KCl ha -1 , 1,500 kg
Organonitrofos ha -1 ), E (Urea 75 kg ha -1 , SP-36 50 kg ha -1 , 25 kg ha -1
KCl, Organonitrofos 2000 kg ha -1 ), F (3,000 Organonitrofos kg ha -1 ). The
results showed that treatment at a dose of 150 kg of urea ha-1, SP-36 100 kg
ha-1, 50 kg ha-1 KCl, Organonitrofos 1500 kg ha-1 is able to increase the
growth, production and sweet corn crop nutrient uptake. This treatment was also
the most effective treatment of the total biomass of sweet corn plants basedon
calculations Relative Agronomic Effectivenes (RAE) that is equal to 108.573%. Economical
test results showed that treatment at a dose of 300 kg of urea ha-1, SP-36 200
kg ha-1, 100 kg ha-1 KCl most economical compared to other treatments.
Keywords: sweet corn, the
combination of fertilizer, organonitrofos, nutrient uptake Diterima: 24-12-2014
: disetujui 23-10-2015
Penulis: Eka Purnama Sari,
Jamalam Lumbanraja, Henrie Buchari, dan Ainin Niswati
Kode Jurnal: jppertaniandd150223