Pertumbuhan dan Hasil Jagung pada Berbagai Pemberian Pupuk Nitrogen di Lahan Kering Regosol
Abstract: Nitrogen is a
macro-nutrient that is the primary determinant in corn crop production that is cultivated on dry land. Corn production can be increased by providing inorganic and organic
fertilizer.
The purpose of the research is to discover the influence of carbamide
(urea fertilizer) and cow manure fertilizer levels on the growth of corn
production on regosol dry land.
The research was
conducted from March-June,
2012, at the Gadjah Mada
University (UGM) Agriculture Faculty Tridarma Garden, in Banguntapan. The
experimental design uses a Complete Group Random Design (RAKL) which consists
of two factors. The first factor provides three different amounts of carbamide
(100 kg/ha, 150 kg/ha, and 200 kg/ha). The second factor has three different
amounts of cow manure fertilizer (10 t/ha, 15 t/ha, and 20 t/ha).
The research findings show that the plant height, leaf width, total plant
net weight, blossom period, harvest period, seed weight, chlorophyll level, and
N-leaf level are influenced by the amount of carbamide, while the amount of cow
manure fertilizer can repair the physiological and chemical nature of the soil.
There is no relationship between carbamide and cow manure fertilizer levels on
corn growth and productivity levels. The use of carbamide has a significant
influence on corn growth and productivity
on regosol dry land. The average corn productivity on regosol dry land with 200 kg/ha of
carbamide is 7.38 t/ha, while lamuru corn has a harvest potential of 7.6 t/ha.
Key words: nitrogen,
cow manure fertilizer,
regosol dry land,
corn, physiological, growth, harvest
Penulis: Jemfris H.H. Sonbai,
Djoko Prajitno, dan Abdul Syukur
Kode Jurnal: jppertaniandd130030
