scholarly journals Optimasi Dosis Pupuk Nitrogen dan Fosfor pada Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) Belum Menghasilkan Umur Satu Tahun

2016 ◽  
Vol 43 (3) ◽  
pp. 250
Author(s):  
Feni Shintarika ◽  
Sudradjat , ◽  
Supijatno ,
Keyword(s):  
Leaf Area ◽  
Nitrogen Fertilizer ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Nitrogen And Phosphorus ◽  
Randomized Block Design ◽  
Phosphorus Fertilizers ◽  
One Year ◽  
Leaf N Content

<p>ABSTRACT</p><p>The accuracy of fertilizer dosage for one-year-old oil palm plants is very important. The objective of the research was to determine the optimum rates of Nitrogen and Phosphorus fertilizers for young oil palm. The experiment was conducted at IPB-Cargill Teaching Farm of Oil Palm at Jonggol, from March 2013-March 2014. This study consisted of two separate experiments namely (1) Optimizing Nitrogen and (2) Optimizing Phosphorus. Both experiments used randomized block design with one factor and three replications. The treatments were five rates of nitrogen or phosphorus (0, 135, 270, 405, 540 g N per plant; 0, 135, 270, 405, 540 g P2O5 per plant). The results showed that nitrogen fertilizer rates increased height linearly at 10 month after treatment (MAT) and quadratically at 12 MAT. Stem girth, frond production and leaf area of 9th frond increased quadratically with N rates (9, 10, 12 MAT). Nitrogen fertilizer quadratically increased leaf chlorophyll content (12 MAT), but did not significantly affected leaf-N content. Phosphorus fertilizer increased palm height linearly (9, 10 MAT) and quadratically (12 MAT). Phosphorus linearly increased stem girth (12 MAT) and quadratically (9, 10 MAT). Frond production was quadratically increased with phosphorus rates (9, 10, 12 MAT). Phosphorus linearly increased leaf area of 9th frond (9 MAT) and quadratically (12 MAT). The optimum rates of nitrogen and phosphorus fertilizers for one year old plant was 382 g N and 331 g P2O5 per plant, respectively.</p><p>Keywords: inorganic, nutrient, optimum rates, single fertilizer</p>

scholarly journals PENGARUH PEMBERIAN PUPUK HAYATI CAIR ULTRA GEN DAN PUPUK MAJEMUK NPK MAHKOTA (12-12-17-2) TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI MAIN NURSERY

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Rian Jura Arrazi ◽  
Agam Ihsan Hereri ◽  
Erida Nurahmi
Keyword(s):  
Leaf Area ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Stem Diameter ◽  
Randomized Block Design ◽  
Two Factors ◽  
Aceh Province ◽  
Number Of Leaves ◽  
Almost All

This study aims to determine the effect of the concentration of ultra gene liquid biofertilizers and crowns compound NPK and to find out whether there is any interaction between the both of it on the growth of oil palm seedlings.This research was carried out at the main nursery land of Nusantara I Plantation Limited Company (PTPN I) Kebun Baru, Langsa City, Aceh Province from June to September 2017. This study used factorial randomized block design with 16 treatments repeated 3 times. This study consisted of two factors, namely the dose of ultra gene liquid biofertilizer 0.100, 200 and 300 ml and the dose of crowns compound NPK fertilizer 0,5,10 and 15 g. The results showed that the dose of Ultra Gen liquid biofertilizer significantly affected the stem diameter, leaf number and leaf area in almost all MSP and significantly affected the leaf area of 6 MSP. The dose of Ultra Gen liquid biofertilizer treatment has a very significant effect on the growth of oil palm seedlings, which is indicated by the parameters of the increase in stem diameter, number of leaves and leaf area, and only a significant effect on leaf area 6 weeks after observation. The dose of 200 ml of the Ultra Gen factor shows better growth than other doses. There is a real interaction on seedling growth as indicated by the parameters of the number of seedlings. The highest number of seed leaves was shown by the treatment of 100 ml / polybag ultra gen with NPK 5g/polybag (U1N1), and 200 ml / polybag with no NPK fertilization (U2N0), although not significantly different from the U0N0 and U3N3 treatment combinations, but significantly different with the combination of other treatments. Keywords: crowns NPK, oil palm seeds, ultra gene liquid biofertilizers

scholarly journals Optimasi Paket Pupuk Tunggal pada Tanaman Kelapa Sawit Belum Menghasilkan Umur Satu Tahun

2015 ◽  
Vol 43 (2) ◽  
pp. 161
Author(s):  
Hidayat Saputra ◽  
Sudradjat , ◽  
Sudradjat , ◽  
Sudirman Yahya ◽  
Sudirman Yahya
Keyword(s):  
Boric Acid ◽  
Oil Palm ◽  
Growth Response ◽  
Block Design ◽  
Response Patterns ◽  
Optimum Rate ◽  
Palm Trees ◽  
Randomized Block Design ◽  
Efficiency And Effectiveness ◽  
One Year

<p>ABSTRACT</p><p>Effective and efficient fertilization is affected by fertilizer dose, and therefore information on the appropriate dose of a single fertilizer for oil palm will be beneficial to increase the efficiency and effectiveness of fertilization in oil palm plantations. The objectives of this research were to study the response patterns and to determine optimum rate of single fertilizer package related to the growth of one year old oil palm trees. The experiment was conducted from March 2013 to February 2014 at IPB-Cargill Teaching and Research Farm of Oil Palm, Jonggol Bogor. The experiment was arranged in randomized block design with one factor and replicated three times. The treatments were four single fertilizer package as followed: control, 300 g urea + 375 g SP-36 + 350 g KCl + 25 g boric acid + 25 g CuSO4.5H2O, 600 g urea + 750 g SP-36 + 700 g KCl + 25 g boric acid + 25 g CuSO4.5H2O, 900 g urea + 1125 g SP-36 + 1050 g KCl + 25 g boric acid + 25 g CuSO4.5H2O per plant. The result showed that application of single fertilizer package significantly increased the growth of young oil palm linearly as shown by plant height, stem girth, leaf area of frond number 9, chlorophyll and P content of the leaves and quadratically on leaf number at the last observation. The optimum rate of single fertilizer for one year old oil palm trees had not been attained at this research because the plant growth response to fertilization was still linear.</p><p>Keywords: inorganic, leaf frond number 9, optimum rate, growth response, stem girth</p>

scholarly journals Effects of plant growth regulators in heliconia ‘Red Opal’

2016 ◽  
Vol 22 (3) ◽  
pp. 301
Author(s):  
Ana Cecilia Ribeiro de Castro ◽  
Fernando José Hawerroth ◽  
Carlos Alberto Kenji Taniguchi ◽  
Tiago Freitas Silva ◽  
Nazaré Suziane Soares
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Growth Regulators ◽  
Growth Regulator ◽  
Block Design ◽  
Dry Mass ◽  
Potted Plants ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
One Year

The objective of this study was to evaluate growth regulators with purpose of reducing the size of heliconia ‘Red Opal’ potted plants. The experiment was carried out in randomized block design with five treatments (trinexapac-ethyl and paclobutrazol at rates of 37.5 and 75.0 mg of active ingredient per pot and control without growth regulator) and five replicates. The treatments were applied 40 days after planting the rhizomes in pots filled with soil. Thirty and 150 days after the growth regulator application, plant height, number of leaves and shoots, petioles length and leaf area were evaluated. One year after planting the rhizomes in pots the number of inflorescence and leaves (leaves, sheathing leaf bases and inflorescences) and rhizomes (rhizomes and roots) dry mass were determined. Trinexapac-ethyl had no differences compared to the control in any of the variables evaluated. Paclobutrazol proved effective in reducing plant height, leaf area and petiole length and increase in number of leaves and shoots but the effect was temporary. Also, it did not affect the inflorescences production and leaves and rhizomes dry mass. Paclobutrazol is efficient to promote height reduction and to increase the number of shoots in heliconia ‘Red Opal’ potted plants without affect the inflorescence formation but its effects is temporary.

scholarly journals Peranan Pupuk Organik dan NPK Majemuk terhadap Pertumbuhan Kelapa Sawit TBM 1 di Lahan Marginal

2016 ◽  
Vol 43 (3) ◽  
pp. 242
Author(s):  
Yan Sukmawan ◽  
Sudradjat , ◽  
Sugiyanta ,
Keyword(s):  
Vegetable Oil ◽  
Oil Palm ◽  
Vegetative Growth ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Marginal Land ◽  
Cow Dung ◽  
Elaeis Guineensis Jacq ◽  
One Year

<p>ABSTRACT</p><p>Oil palm (Elaeis guineensis Jacq.) is the most efficient vegetable oil producer. It produces five to seven times more vegetable oil per hectare than the other vegetable oil producing crops. The objective of this research was to study the role of organic and NPK compound fertilizers application to one-year-old oil palm (Elaeis guineensis Jacq.) on marginal land. The research was conducted at IPB-Cargilll Teaching Farm of Oil Palm, Jonggol, Bogor, West Java from March 2013 to March 2014. The experiment was carried out as factorial experiment in a randomized block design with three replications. The first factor was organic fertilizer consisted of 0, 15, and 30 kg per palm. The second factor was NPK compound fertilizers 15:15:15 consisted of 0, 1.3 and 2.6 kg per palm. The results showed that no interaction effect between organic and NPK compound fertilizers on all of variables observed. Marginal soils in Jonggol required high rate of fertilizers to produce good performance of one-year-old oil palm. Application of 30 kg organic fertilizer per palm or 2.6 kg NPK compound fertilizers 15:15:15 per palm resulted in the highest vegetative growth of one-year-old oil palm on marginal land in Jonggol.</p><p>Keywords: cow dung, critical nutrient level, slow release fertilizer, Ultisols, vegetative growth</p>

scholarly journals PEMBERIAN BEBERAPA ZPT ORGANIK TERHADAP BEBERAPA VARIETAS BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI PRE-NURSERY

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Yazid Habiby Lubis ◽  
Mita Setyowati ◽  
Aboe B. Saidi
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Coconut Water ◽  
Factor V ◽  
Organic Growth ◽  
Randomized Block Design ◽  
Elaeis Guineensis Jacq ◽  
Materials Used ◽  
Experimental Garden

The aims of this study was to determine the effect of several organic growth regulatory on several varieties of oil palm seedlings (Elaeis guineensis Jacq) in Pre Nursery. The research was carried out in the experimental garden of the Faculty of Agriculture, Teuku Umar University, West Aceh, from March until finished. The materials used were Organic growth regulatory in the form of 50 cc coconut water, 50 cc union extract and 50 cc bamboo shoot extract. While the varieties of oil palm seedlings are varieties that yangambi, simalungun and 239 from IOPRI Medan. This study used a factorial randomized block design (RBD) 4 X 3 with 3 replications. Giving growth regulatory (Z) consists of 4 levels, namely: Z0 = Control, Z1 = Coconut water, Z2 = Shallot Extract, Z3 = Bamboo Extract, while Variety factor (V) consists of 3 levels: V1 = Yangambi, V2 = Simalungun, V3 = 239. Observation parameters are increase in seedling height (cm), stem diameter (mm), number of leaf midribs (midrib), wet stover weight (g), number of roots (number) and root length (cm). Keywords: Growth Regulatory, Varieties, Oil Palm, Pre Nursery 

scholarly journals EFIKASI HERBISIDA ISOPROPILAMINA GLIFOSAT 240 g l-1 TERHADAP PERTUMBUHAN GULMA DI PERKEBUNAN KELAPA SAWIT (Elaeis guineensis Jacq) TANAMAN MENGHASILKAN

2021 ◽  
Vol 9 (02) ◽  
pp. 189
Author(s):  
Wasri Yaman
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Homogeneity Of Variance ◽  
Glyphosate Herbicide ◽  
Elaeis Guineensis Jacq ◽  
Plantation Crops ◽  
And Control

Oil palm (Elaeis guineensis Jacq.) Is one of the most widely cultivated plantation crops in Indonesia. The decrease in productivity of oil palm is caused by presence of weeds around the plant that can be controled. One of the most commonly used controls is the use of the isopropylamine glyphosate herbicide. This research aims to determine the dosage of the Isopropylamine glyphosate herbicide which is oil palm yields. Determining changes in weed composition after application of Isopropylamine glyphosate herbicide in oil palm yields. Determining whether phytotoxicity occurs in oil palm yields after application of the Isopropylamine glyphosate herbicide. This research was conducted in oil palm plantations owned by farmers in Jontor Kenangasari Village, Seputih Surabaya District, Central Lampung Regency and the Weed Laboratory of the Faculty of Agriculture, University of Lampung, Gedong Meneng, Bandar Lampung.  The research was conducted using a randomized block design (RBD) with 6 treatments and 4 replications, namely various doses of isopropylamine glyphosate (360, 600, 480, and 720 g ha-1), manual weeding, and control.  Homogeneity of variance was tested using the Bartlet test, additivity was tested by the Tukey test, and the mean difference was tested by the Least Significant Difference Test (LSD) at the 5% level. The results showed that: (1) The isopropylamine glyphosate herbicide dose of 480-720 g ha-1 is effective in controlling  total weeds, grasses weeds, Brachiaria mutica weeds and Mikania micrantha weeds up to 12 MSA and the herbicide dose of 600-720 g ha-1 is effective in controlling wide leaf weeds, and Cyrtococcum acrescens weeds up to 8 MSA, (2) The isopropylamine glyphosate herbicide 360- 720 g ha-1 causes changes in weed composition  at 4, 8, and 12 MSA, and (3) Application of the isopropylamine glyphosate herbicide 360 - 720 g ha-1 on plant plates did not cause poisoning to oil palm plants.

scholarly journals Influence of Manure, Nitrogen, Phosphorus and Potassium Fertilizer Application on Growth of One-year-old Oil Palms on Marginal Soil in Jonggol, Bogor, Indonesia

2014 ◽  
Vol 1 (2) ◽  
pp. 18-24 ◽  
Author(s):  
Sudradjat Sudrajat ◽  
Yan Sukmawan ◽  
Sugiyanta Sugiyanta
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Nutrient Level ◽  
Growth Responses ◽  
Potassium Fertilizer ◽  
Oil Palms ◽  
One Year

The oil palms (Elaeis guineensis Jacq.) are highlyefcient oil producers. It produces ve to seven timesmore vegetable oil per hectare than soybean, sunower,and rapeseed. The objectives of this research were tostudy the role of organic and N, P, and K fertilizers ongrowth of one-year-old immature oil palm on marginalsoil in Jonggol. The research was conducted at IPBCargill Teaching Farm (ICTF) of Oil Palm, Jonggol,Bogor,West Java from March 2013 to March 2014. Theexperiment was arranged in a factorial experimentfollowing a randomized block design with threereplications. The rst factor was organic fertilizer(manure) consisting of 0 (O), 15 (O1) and 30 (O2) kg pertree per year. The second factor was inorganic fertilizerconsisting of 0 (S0); 0.25 kg N + 0.25 kg P O + 0.39 kg 2 5K O(S ) 0.50 k N+ 0.50 kg P O + 0.78 kg K O(S ) 2 25 2 1and g 2per tree. The results demonstrated that application ofmanure up to 30 kg per tree per year did not affect thegrowth of one-year-old oil palm. Application of 0.50 kg N+ 0.50 kg P O + 0.78 kg K O highest 2 5 2 per tree gave theresult in increasing frond production, stem girth, and leafnutrient concentration. The results of leaf analysis andplant growth responses suggested that the rates ofmanure and inorganic fertilizers applied in this study arenot sufcient to improve young oil palm growth inmarginal soil in Jonggol.Keywords: cow manure, critical nutrient level, inorganicfertilizer, soil fertility, vegetative growth

scholarly journals TIME AND DIRECTION EFFECT OF BORON (B) AND SILICON (Si) APPLICATION ON OIL PALM (Elaeis guineensis) THROUGH LEAVES

2018 ◽  
Vol 4 (1) ◽  
pp. 16
Author(s):  
Ageng Kaloko
Keyword(s):  
Drought Stress ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Real Difference ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Effects Of Drought ◽  
Direction Effect ◽  
Difference Test

This study was aimed to obtain the time and the effective way of giving B and Si for reducing the effects of drought. It had been implemented in Bendosari village, Madurejo village, Prambanan sub-district, Sleman regency. The study used 3x3 +1 factorial complete randomized block design (RAKL) with with 3 blocks as replicates. The first factor was the time of fertilization, the second factor was way of fertilization and added one control (control) without fertilization treatment. The data obtained were analyzed using the Varian Analysis (ANOVA) at the 5% level and continued by the smallest real difference test (LSD) and orthogonal contrast if the variance analysis showed a significant difference between treatments. The results showed that there was no interaction effect between time and direction of B and Si fertilization through leaves on all observed variables of oil palm seedlings exposed to drought stress.

scholarly journals OIL PALM SEED GROWTH RESPONSE WITH GIVING ORGANIC TITHONIA AND UREA FERTILIZER

2021 ◽  
Vol 46 (1) ◽  
pp. 32
Author(s):  
Fitra Syawal Harahap ◽  
Khairul Rizal ◽  
Aziddin Harahap ◽  
Iman Arman ◽  
Mulya Rafika
Keyword(s):  
Experimental Design ◽  
Leaf Area ◽  
Plant Height ◽  
Oil Palm ◽  
Block Design ◽  
Organic Fertilizer ◽  
Randomized Block Design ◽  
Seed Growth ◽  
Four Levels ◽  
The University

Seedlings which look prima is a prerequisite for the success of oil palm cultivation. Besides, because of the factors in the pre-nursery genetic, the provision of nutrients in early growth seedlings has an important role performance determine the appearance of the seedlings thoroughly. This study aims to determine the influence of the growth of oil palm seedlings at each concentration of organic fertilizer tithonia and fertilizer of urea for pre-nursery. The experiment was carried out from January to Agustus 2019 in the Experimental Garden of the Faculty of Science and Technology, the University of Labuhanbatu Rantauprapat with a height of 13 meters above sea level. The experimental design used was a Randomized Block Design with a factorial pattern that is repeated three times. The experimental design used was a Randomized Block Design with a factorial pattern that is repeated three times. The first factor includes the dose of Organic Fertilizer Tithonia (ton/ha) comprising of three standards, namely T0 = 0 ton/ha, T1 = 10 ton/ha, T2 = 20 tons/ha and the second factor was fertilizer dosage Uera which consists of four levels, namely U0 = 0 kg/ha, U1 = 100 kg/ha, T2 = 200 kg/ha, U3 = 300 kg/ha. The experimental results show that there are significant interactions of organic fertilizer Tithonia with fertilizers urea on plant height (cm) and leaf area of oil palm seedlings (cm2). Treatment of organic fertilizer tithonia 20 tons/ha with fertilizer urea 300 kg/ha yield plant height and leaf area of oil palm seedlings the best for pre-nursery. 

scholarly journals Pengaruh Pemberian Kompos Blotong Limbah Pabrik Gula Dan Mikoriza Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq)

2019 ◽  
Vol 4 (1) ◽  
pp. 64
Author(s):  
Kartika Sari ◽  
Mardiana Wahyuni ◽  
Hardy Wijaya
Keyword(s):  
Oil Palm ◽  
Crop Yields ◽  
Elaeis Guineensis ◽  
Design Method ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Organic Fertilizers ◽  
Sugar Mill ◽  
Randomized Block Design

Nursery success is one of the important things in the oil palm plantation business. Nurseries are the beginning of efforts to cultivate palm plants, so the nurseries must consider all the conditions that can affect the development of the growth of oil palm plants. One important requirement is to conduct nurseries that tend to be organic, which are environmentally friendly. The use of organic fertilizers and sustainable biological fertilizers is very important in increasing soil fertility, growth and crop yields. Organic fertilizer that used is sugar mill wasted blotong and biological fertilizer is mychorrhizal. To determine the effect of giving sugar mill waste blotong and mycorrhizal applications on P nutrient levels in the Main Nursery. This study uses factorial randomized block design method (RAK). First factor is blotong (B): B0= control, B1= 500 gr blotong/seed, B2= 100 gr blotong/seed. Second factor is Mycorrhizal (M): M0= control, M1= 10 gr mycorrhizal arbusculae/seed, M2= 20 gr mycorrhizal arbusculae/seed. 9 treatment combinations were obtained with 4 replications, so the total treatment was 36. Blotong compost application significantly affected palm seed height, canopy dry weight and root dry weight, while mycorrhizal application only significantly affected seed height. the combination between them two gives the best effect on B1M1 treatment.

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