4
ABSTRAK
Respon pertumbuhan dan produksi tanaman jagung terhadap frekuensi pemupukan pupuk organik cair (POC) dan aplikasi pupuk dasar NPK, atas bimbingan Edison Purba dan Nini Rahmawati.
Penelitian ini bertujuan untuk menemukan frekuensi pemupukan POC dan aplikasi pupuk dasar NPK pada tanaman jagung. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok faktorial dengan 2 faktor. Faktor pertama adalah frekuensi pemupukan POC dengan 4 taraf antara lain F0(0 kali), F1(1 kali), F2(2 kali), dan F3(3 kali). Faktor kedua adalah aplikasi pupuk dasar NPK dengan 3 taraf antara lain P0(0 g/plot), P1(185 g/plot), dan P2(370 g/plot). Parameter yang diamati antara lain tinggi tanaman (cm), diameter batang (mm), luas daun (cm2), jumlah baris per tongkol (baris), dan produksi per plot (kg).
Hasil penelitian menunjukkan bahwa perlakuan frekuensi pemupukan POC berpengaruh nyata terhadap tinggi tanaman umur 45 HST. Perlakuan aplikasi pupuk dsar NPK berpengaruh nyata terhadap diameter batang umur 15-60 HST dan produksi per plot. Interaksi antara frekuensi pemupukan POC dan aplikasi pupuk dasar NPK berpengaruh nyata terhadap tinggi tanaman umur 45 HST.
Kata kunci : frekuensi pemupukan, POC, pupuk dasar NPK, jagung
5
ABSTRACT
The growth and production of corn response to the frequency of liquid organic fertilizer aplication and solid NPK as basis fertilizer, supervised by Edison Purba and Nini Rahmawati.
The aim for the study was to determine the frequency of liquid organic fertilizer aplication and solid NPK as basis fertilizer. The design of the experiment was randomized block design arranged in factorial with two factors. The first factor was the frequency of liquid organic fertilizer with 4 levels of each F0(0 time), F1(1 time), F2(2 times), and F3(3 times). The second factor was aplication of NPK as basis fertilizer with 3 levels of each P0(0 g/plot), P1(185 g/plot), dan P2(370 g/plot). The parameter observed includes plant height (cm), diameter of stem (mm), wide of leaf (cm2), number of line in cob (line) and production per plot (kg).
The result of research showed that frequency of liquid organic fertilizer influential significanlly on height of plant 45 days after planted. Aplication of NPK as basis fertilizer influential significantly on diameter of stem 15-60 days after planted and production per plot. Interaction between the frequency of liquid organic fertilizer and aplication of NPK fertilizer influential significantly on height of plant 45 days after planted.
Key words : frequency of fertilizer, liquid organic fertilizer, basis fertilzer, corn
