Pengaruh Aplikasi Pupuk Fosfat Alam Dengan Urea, MOP, dan Dolomit terhadap Kadar P Daun Tanaman Kelapa Sawit Menghasilkan pada Tanah Ultisol

The Effect of Rock Phosphate Fertilizer application Urea, MOP, and Dolomite on leaf Phosphorus Content of Produce Palm Oil in Ultisol

Abstract

The aim of the research wasto examine the effect of application rock phosphate, urea, MOP, and
dolomite on leaf P content of produce palm oil and see the dynamics of leaf P content of produce
palm oil after 6 months of fertilizer application in Ultisol. The research was implemented inPPKS
Kebun Aek Pancur Tanjung Morawa using non factorial randomized block design with treatment
T0 (without fertilizer), T1 (rock phosphate), T2 (rock phosphate and urea), T3 (rock phosphate and
MOP), T4 (rock phosphate and Dolphite), T5 (rock phosphate, urea, and MOP), T6 (rock
phosphate, urea, and dolomite), T7 (rock phosphate, MOP, and dolomite), T8 (rock phosphate, urea,
MOP, and dolomite), with 3 replications. Parameters measured are P leaf. Result of this research
showed that application of rock phosphate, urea, MOP, and dolomite did not affect leaf P content
for 6 months after application.

Penelitian ini bertujuan untuk mengkaji efek aplikasi pupuk fosfat alam, urea, MOP, dan dolomit terhadap kadar hara P daun kelapa sawit menghasilkan dan melihat dinamika kadar hara P daun kelapa sawit menghasilkan setelah 6 bulan aplikasi di tanah Ultisol. Penelitian ini dilaksanakan di PPKS Kebun Aek Pancur Tanjung Morawa menggunakan rancangan acak kelompok (RAK) non faktorial dengan perlakuan T 0 (tanpa pupuk), T 1 (fosfat alam), T 2 (fosfat alam dan urea), T 3 (fosfat alam dan MOP), T 4 (fosfat alam dan dolomit), T 5 (fosfat alam, urea, dan MOP), T 6 (fosfat alam, urea, dan dolomit), T 7 (fosfat alam, MOP, dan dolomit), T 8 (fosfat alam, urea, MOP, dan dolomit), sebanyak 3 ulangan. Parameter yang diamati adalah kadarP daun. Hasil penelitian menunjukkan bahwa aplikasi pupuk fosfat alam, urea, MOP, dan dolomit tidak mempengaruhi kadar P daun selama 6 bulan setelah aplikasi.