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EFEKTIVITAS APLIKASI PUPUK KONVENSIONAL DAN “CONTROL RELEASE FERTILIZER” TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) Mardiana Wahyuni; M. Fikih Nasution
Jurnal Agro Estate Vol 2 No 2 (2018): Desember 2018
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (817.677 KB) | DOI: 10.47199/jae.v2i2.48

Abstract

Oil palm nursery is a starting point in greatly determines for the success of planting in the field, while superior seeds are a large capital of the company to achieve high productivity and quality of palm oil. To get a really good, healthy, and uniform seed, strict sorting must be done. The study was conducted at the STIPAP Medan. The study period was 4 months, from April to August 2018. The study used Non Factorial Randomized Block Design (RBD) with 3 treatments and six replications, P1: Standard Fertilizer / Recommended PPKS, P2: Fertilizer Control Release Fertilizer (CRF) 1x application dose of 50 g / seed, P3: Fertilizer Control Release Fertilizer (CRF) 2x application, dose / application 50 g / seed. Parameter testing is compiled on the variance list with a level of 5% and 1% for the whole treatment. The best treatment found in P3 can increase plant height 59.29 cm (18%), stem circumference 15.88 cm (9%), leaf number 12.83 strands (7%), wet weight 188.56 gr (2%) and dry weight 52.45 gr (8%) were compared to the growth of IOPRI/PPKS Medan standard seedlings.
EFEKTIVITAS PENGENDALIAN HAMA ULAT KANTUNG (Metisa plana) PADA TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq) DENGAN SISTEM INJEKSI BATANG DI KEBUN TANJUNG GARBUS PT. PERKEBUNAN NUSANTARA II Mardiana Wahyuni; Marshal Arifin Sinaga; Suprandi Restua S
Jurnal Agro Estate Vol 1 No 2 (2017): Desember 2017
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1152.6 KB) | DOI: 10.47199/jae.v1i2.71

Abstract

Bagworrn is one of leaf eater caterpillar in oil palm cultivation. They can attack oil palm from nursery stage to the mature stage. It is difficulty to control the baguworm because their body covered with bag. This research wa carried out in the afdeling VI Tanjung Gambus Estate PT.Perkebunan Nusantara II from Juli-Agustus 2017. Descreptive design with secondary data taken from the estate (data October 2016-March 2017). Control system has been used in Tanjung Gambus estate was by injection. The result of this research show that bagworm control by steam injection is effective. Bagworm (Metisa Plana) population decline with average mortality from 27.27 (heavy attack) to 5.44 (medium) with percentage 86.67 %.
ESTIMASI KARBON TERSIMPAN TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq) VARIETAS SOCFINDO PADA KELAS KESESUAIAN LAHAN S3 DI KEBUN AEK TOROP PTPN III Havier Situmorang; Aris Sukariawan; Aulia Juanda Djaingsastro; Mardiana Wahyuni
Jurnal Agro Estate Vol 3 No 2 (2019): Desember 2019
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (598.917 KB) | DOI: 10.47199/jae.v3i2.96

Abstract

The expansion of oil palm plantations has led to debate over the negative impacts on soil fertility, hydrology, biodiversity and global warming. Climate change occurs due to changes in the composition of the atmosphere, mainly due to an increase in the concentration of greenhouse gases (GHGs). The usefulness of photosynthesis using CO2 is important to note. The purpose of this study is to measure / estimate the stored carbon absorbed by the 13-year-old Socfindo palm oil plant in the land suitability class S3. The study was conducted in May to June 2019 at PT Aek Torop Kebun III. Using descriptive design with Destructive and Non-Destructive methods based on ICRAF. The parameters are Above Surface Biomass (BAP) and Substance Biomass (BTB). The results showed that the oil palm surface surface biomass (BAP) at the age of 13 years was 117,855 tons / ha. The results of observations of Undergrowth Biomass (BTB) are 0.392 Ton / ha, the potential carbon stored is 54.394 Ton C / Ha and carbon dioxide absorption is 199.625 Ton CO2 / Ha.
EFEKTIFITAS PUPUK DALAM BEBERAPA UKURAN SACHET TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) Alia Rahma; Mardiana Wahyuni; Saroha Manurung
Jurnal Agro Estate Vol 3 No 2 (2019): Desember 2019
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.116 KB) | DOI: 10.47199/jae.v3i2.97

Abstract

The productivity of oil palm plants is influenced by genetic factor planting materials, soil, climate, cultivation and plant maintenance. Nursery is the first step to prepare the prime plant material. In the implementation of the nursery, fertilization is one important maintenance factor and should be done with reference to 4T (Exactly Types, Dosage, Time and Method). Loss of fertilizer is an important thing to be controlled. This research is a conservation action by packing fertilizer in sachet bag and conservation treatment. The research was conducted in January 2019 – July 2019 at STIPAP. The study used a non factorial randomized block design with S one sowing system, S two, S three, and S four sachet systems of different sizes using conservation. The best treatment is the application of gauze sachet system (S four = 638 mesh) with conservation increasing the growth of seedling height (91,36 cm), stem diameter (50,80 mm), increasing chlorophyll (55,62 cci), increasing root wet weight 99,73 (44%) and canopy dry weight 55,10 (44%).
EFEKTIFITAS PUPUK DALAM BEBERAPA UKURAN SACHET TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq) Alia Rahma; Mardiana Wahyuni; Saroha Manurung
Agro Estate Vol 3 No 2 (2019): Desember 2019
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v3i2.62

Abstract

The productivity of oil palm plants is influenced by genetic factor planting materials, soil, climate, cultivation and plant maintenance. Nursery is the first step to prepare the prime plant material. In the implementation of the nursery, fertilization is one important maintenance factor and should be done with reference to 4T (Exactly Types, Dosage, Time and Method). Loss of fertilizer is an important thing to be controlled. This research is a conservation action by packing fertilizer in sachet bag and conservation treatment. The research was conducted in January 2019 – July 2019 at STIPAP. The study used a non factorial randomized block design with S one sowing system, S two, S three, and S four sachet systems of different sizes using conservation. The best treatment is the application of gauze sachet system (S four = 638 mesh) with conservation increasing the growth of seedling height (91,36 cm), stem diameter (50,80 mm), increasing chlorophyll (55,62 cci), increasing root wet weight 99,73 (44%) and canopy dry weight 55,10 (44%).
Co-Authors Alia Rahma Aries Sukariawan Aris Sukariawan Aulia Juanda Aulia Juanda Djaingsastro Havier Situmorang M. Fikih Nasution Manurung, Saroha Marshal Arifin Sinaga Suprandi Restua S