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All Journal Journal of Tropical Soils Jurnal Penelitian Kelapa Sawit JCRS (Journal of Community Research and Service) AGRIC
Edy Sigit Sutarta
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Environmental Science Social Sciences

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 1 
GROWTH RESPONSE AND NITROGEN USE EFFICIENCY OF PALM OIL VARIETY ON N FERTILIZING IN PRE NURSERY wilda lumban tobing; Chairani Hanum; Edy Sigit Sutarta
Agric Vol. 30 No. 1 (2018)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2018.v30.i1.p43-50

Abstract

Oil palm plantation expansion in Indonesia continue to increase year by year. Several varieties of oil palm have been produced but not much information about the growth characteristics. Urea as nitrogen fertilizer has become a staple for the cultivation cycle of oil palm. The determination of nitrogen use efficiency (NUE) on palm oil varieties can be used to find out N requirement of each plant according to their needs. This research was aimed to analyze the growth response and NUE of palm oil varieties to fertilizer N at pre nursery. It was conducted in nursery area at Yos Sudarso Binjai Street and Pusat Penelitian Kelapa Sawit, Medan from November 2016 until March 2017 using Completely Randomized Block Design followed by Scott Knott test at α = 5%. There were 35 treatment combinations that used seven varieties of Dura x Pisifera Medan Palm Oil Research Center (AVROS, Simalungun, PPKS 540, Yangambi, PPKS 718, PPKS 239, and Langkat) with N consisting of 5 levels (0 ; 0,5 g ; 1 g; 1.5 g and 2 g). The results showed that the application of N fertilizer influence significant effect on the growth of stem circumference and the number of leaves. The highest of nitrogen use efficiency is found in Simalungun varieties with N application of 1,5 g/plant.
THE GROWTH OF OIL PALM VARIETIES (ELAEIS GUINEENSIS JACQ.) ON SUBSOIL MEDIA TREATED WITHSEVERAL DOSAGES OF NITROGEN FERTILIZER Khairani, Siti; Akoeb, Erwin Nyak; Sutarta, Edy Sigit; Sabrina, T.
Journal of Community Research and Service Vol 1, No 2: July 2017
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v1i2.9345

Abstract

AbstractOilpalmis one of important export commodities performing as the country’s main foreign exchange from the trade of crops.Nitrogen is a limiting factor of plant growth. This study aims to determine: 1) the appropriate dose of absorption of nitrogen and growth in some high yielding varieties of oil palm; 2) the superior varieties of oil palm crops that provide no effect from the nitrogen nutrients and; 3) the interaction between varieties and nitrogen fertilizer on nitrogen nutrient absorption efficiency. This research was conducted in Palm Oil Research Centre at the District of Deli Serdang, the Province of North Sumatra.The research used Factorial Random Block Design with 2 factors. The first factor is varieties (Avros 540, PPKS 239, Simalungun, Langkat and 718PPKS). The second factor is N fertilizer which consists of without N fertilizer, 25% fertilizer recommendation, 50% fertilizer recommendation, 75% fertilizer recommendation and 100% fertilizer recommendation. The results showed that the varieties of oil palm used have different characteristics on plant height, stem diameter and number of leaves. The Simalungun variety was the best variety and its combination with 100% recommendation N was the best result in increasing plant heightof oil palm. Meanwhile the combination with 50% recommendation N was the best result in increasing stem diameter and number of leavesof oil palm.Keywords: oilpalm, nitrogen fertilizer, variety
DISTRIBUSI PERAKARAN KELAPA SAWIT DAN SIFAT FISIK TANAH PADA UKURAN LUBANG TANAM DAN APLIKASI TANDAN KOSONG SAWIT YANG BERBEDA Pradiko, Iput; Hidayat, Fandi; Darlan, Nuzul Hijri; Santoso, Heri; Winarna, Winarna; Rahutomo, Suroso; Sutarta, Edy Sigit
Jurnal Penelitian Kelapa Sawit Vol 24 No 1 (2016): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.028 KB) | DOI: 10.22302/iopri.jur.jpks.v24i1.4

Abstract

This study was conducted to determine the root distribution and to analyze soil physical factors that affect roots development in different size of planting hole; standard (0.6 m x 0.6 m x 0.6 m), medium ((1 x 1 cm x 0.6 m) with 400 kg empty fruit bunches (EFB)/hole and 740 g urea/hole, and big (2.8 mx 2.8 mx 1 m) with 400 kg EFB/hole and 740 gr urea/hole. This study employed demonstration plot that used a non factorialrandomized block design (RBD) with three treatments (standard, medium, and big hole) and three replications. The results showed that total distribution of oil palm roots in standard, medium, and big planting 3 3 hole are respectively 28.60 g /dm ; 26.69 g/dm ; and 3 24.47 g/dm . Types of planting hole did not significantly affect primary root, but significantly affected secondary and tertiary root distribution. In big planting hole, oil palm has highest secondary and tertiary roots distribution than the others (up to 70%). Increasing ofpermeability, porosity, and decreasing of soil bulk density tends to increase root distribution, especially tertiary. Meanwhile, increase on soil water content is not followed by secondary and tertiary distribution, since booth root types more distributed in the upper soil layer. Better soil tillage; through big planting hole, can improve soil properties and optimizing development of secondary and tertiary roots.
DAMPAK MUKA AIR TANAH DAN AMELIORAN TERHADAP KELEMBAPAN TANAH, EMISI CO2 DAN PRODUKSI KELAPA SAWIT PADA TANAH GAMBUT Winarna, Winarna; Yusuf, Muhammad Arif; Rahutomo, Suroso; Sutarta, Edy Sigit
Jurnal Penelitian Kelapa Sawit Vol 25 No 3 (2017): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.278 KB) | DOI: 10.22302/iopri.jur.jpks.v25i3.32

Abstract

A field study on peat soil to investigate impacts of soil water table depth and soil ameliorant (steel sludge) had been carried out on mature oil palm. Three treatments of soil water table management and four rates of steel sludge application were applied in this study. Treatments of soil water table management were WLM1, WLM-2, and WLM-3, where soil water table depth was maintained at 35-50 cm, 60-75 cm, and >75 cm below the soil surface, respectively. Treatments of steel sludge were application of this soil ameliorant at the rate of 0; 3.15; 6.51; 9.86 kg tree-1. The study was arranged as split plot randomized block design by assigning soil water table management as main plot and rate of steel sludge as sub plot. Soil Data observed were actual soil water content, peat soil properties, CO2 emission, vegetative growth, and palm yield. The results showed that maintaining soil water table depth at < 75 cm could maintain actual soil moisture up to top parts of peat soil. On the other hand, deeper soil water table (>75 cm, WLM-3) caused significant effects on decreasing of soil moisture in the 0-10 cm layer of peat soil. CO2 emission was 37, 40, dan 45 ton ha-1 year-1 under WLM-1, WLM-2, and WLM-3, respectively. The drop of soil water table to >75 cm (WLM-3) significantly increased CO2 emission to about 11-18% higher than that on WLM-1 and WLM-2. Steel sludge application did not significantly decrease CO2 emission. The highest FFB yield was observed under WLM-1, then followed by WLM-2 and WLM-3. FFB yield was significantly higher when soil water depth was maintained at 35-75 cm than that at > 75 cm, it was 7-10% and 36-60% higher in 2014 and 2015, respectively. There were no significant effects of steel sludge application on FFB yield, but there was improvement on average bunch weight.
Upaya Peningkatan Produksi Kelapa Sawit melalui Penerapan Teknik Konservasi Tanah dan Air Murtilaksono, Kukuh; Darmosarkoro, Witjaksana; Sutarta, Edy Sigit; Siregar, Hasril Hasan; Hidayat, Yayat
JOURNAL OF TROPICAL SOILS Vol. 14 No. 2: May 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i2.135-142

Abstract

Effort to Increase Oil Palm Production through Application Technique of Soil and Water Conservation (K. Murtilaksono, W. Darmosarkoro, E.S. Sutarta, H. H. Siregar, and Y. Hidayat): The study was carried out at block 375, 415, and 414 (block 1, 2, and 3) Afdeling III, Mangement Unit of Rejosari, PT Perkebunan Nusantara VII, Lampung from June 2005 until December 2007.  Objective of the study is to examine the effect of soil and water conservation measurement, namely bund terrace and silt pit that are combined with retarded-water hole on production of oil palm. Sampled trees of each block were randomly selected as much as 36 trees.  Parameters of vegetative growth (additional new frond, total of frond, number of new bunch), production (number of bunch, fresh fruit bunch (TBS)), and average of bunch weigh (RBT) were observed and recorded every two weeks.  Production of palm oil of each block was also recorded every harvesting schedule of Afdeling.  Tabular data were analyzed descriptively by logical comparison among the blocks as result of application of bund terrace and silt pit.  Although the data of sampled trees were erratic, bund terrace and silt pit generally increasing number of frond, number of bunch, average of bunch weight, and fresh fruit bunch.  Bund terrace gived the highest production of TBS (25.2 t ha-1) compared to silt pit application (23.6 t ha-1), and it has better effect on TBS than block control (20.8 t ha-1).  Aside from that, RBT is the highest (21 kg) at bund terrace block compared to silt pit block (20 kg) and control block (19 kg).
Co-Authors Chairani Hanum Chairani Hanum Erwin Nyak Akoeb, Erwin Nyak Fandi Hidayat, Fandi Hasril Hasan Siregar Heri Santoso Khairani, Siti Kukuh Murtilaksono Nuzul Hijri Darlan Pradiko, Iput Rahutomo, Suroso T. Sabrina Wilda Lumban Tobing Winarna Winarna Witjaksana Darmosarkoro Yayat Hidayat Yusuf, Muhammad Arif