Hamzah, Akbar and Lumbanraja, Jamalam and Supriatin, Supriatin and Sarno, - and Amalia, Riajeng Hanum and Satgada, Catur Putra and Zulkarnain, Eldineri and Awang, Tegar Rafshodi and agustina, wiwik (2022) PENGARUH PUPUK ORGANONITROFOS, PUPUK NPK DAN KOMBINASINYA TERHADAP POPULASI, PRODUKSI, DAN HARA TERANGKUT C, N, P TANAMAN TEBU (Saccharum Officinarum L.) RATOON 2 DI TANAH ULTISOL GEDUNG MENENG. AGROTEK TROPIKA, 10 (1). pp. 57-66. ISSN 2337-4993

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Abstract

The increase in sugarcane production was hampered by low levels of organic matter and macro nutrients N, P, K, Ca, and Mg in Utisol soils. Because in Ultisol soil the Al3+ content is quite high, and the base saturation is low. The addition of organonitrofos and inorganic fertilizers is one way to overcome this. This study aimed to determine the influence of the combination of organonitrofos and NPK fertilizers on production, popula- tion, and transported nutrients and transported nutrients of ratoon 2 sugarcane, and and the correlation between total N-soil and P-available soil with N and P absorbed by sugarcane plants. ratoon 2. This study consisted of 5 treatments and 3 replications, arranged in a randomized block design (RBD). The treatments consisted of: A. 100% NPK (300 kg ha-1 urea, 150 kg ha-1 TSP, 300 kg ha-1 KCl), B. 100% organonitophos (10,000 kg ha-1 organonitrofos), C. 100% NPK + 50% organonitrofos (300 kg ha-1 urea, 150 kg ha-1 TSP, 300 kg ha-1 KCl, 5000 kg ha-1 organonitrofos), D. 50% NPK + 100% organonitrofos (150 kg ha-1 urea, 75 kg ha-1 TSP, 150 kg ha-1 KCl, 10,000 kg ha-1 organonitrofos), and E. without fertilization. The results showed that the application of inorganic NPK fertilizers, organonitrofos fertilizers and their combinations had a significant effect on the production and transported nutrients of C, N, P ratoon 2 sugarcane plants, but did not significantly affect the ratoon 2 sugarcane plant population. 100% NPK, 50% + 100% organonitrofos provided production and transported nutrients of C, N, P sugarcane plants which were not significantly different, but significantly higher than the 100% organonitrofos treatment and without fertilization. There is a positive correlation of N-total soil and P-available with N and P absorbed by ratoon 2 sugarcane, so that the total N-soil content and P-available soil determine the amount of N and P that can be absorbed by ratoon 2 sugarcane plants.

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User:	Prof.Dr.Ir Jamalam Lumbanraja
Date Deposited:	12 May 2022 06:55
Last Modified:	12 May 2022 06:55
URI:	http://repository.lppm.unila.ac.id/id/eprint/41582

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