scholarly journals Penggunaan biostimulan Orgamin untuk efisiensi pemupukan dan peningkatan produktivitas kelapa sawit di dataran tinggi Application of Orgamin biostimulan to enhance fertilizer efficiency and productivity of oil palm grown in highland

2016 ◽  
Vol 81 (2) ◽  
Author(s):  
Happy WIDIASTUTI ◽  
Djoko SANTOSO ◽  
Soekarno Mismana PUTRA ◽  
Memed WIRAMIHARDJA ◽  
Aida FARIDA ◽  
...  

AbstractThe extension of oil palm area has been expanded tomarginal land such as the highland regions. However, theproductivity of the oil palm became the main demand for theplanters. Increasing of oil palm productivity can be done byapplication of growth regulators. Growth regulators aresmall molecules in a relatively very small amount that affectthe growth and development of plant. This study wasconducted to asses the efectiveness of plant growth regu-lators (Orgamin and Orgamin plus) in improving fertilizerefficiency and productivity of mature oil palm (TM 7). Theexperiments were conducted at Marjandi oil palm plantationat an altitude of 700 m above sea level in a total area of 16 ha. Six treatments tested were 1). 100% inorganicfertilizer (control), 2). 50% inorganic fertilizer + Orgamin(50K+O), 3). 75% inorganic fertilizer + Orgamin (75K+O),4). 50% inorganic fertilizer + Orgamin plus (50K+OP), 5).75% inorganic fertilizer + Orgamin plus (75K+OP), and 6).100% inorganic fertilizer + Orgamin plus (100K+OP)arranged in a randomized block design (RBD) with threereplications. Orgamin (O) and Orgamin plus (OP) wereapplied in the hole around the oil palm along with inorganicfertilizers. The results showed that application of O and OPimproved the efficiency of inorganic fertilizers by 50% basedon vegetative variables and increased the concentration ofN, P, and K of leaf and soil compared to those of 100%inorganic fertilizer. In addition to the height and leaf numberof plant parameters, the leaf of the plant treated with O andOP showed more greenish compared to those of control.There is an indication that the O application increased thepercentage of female flowers. In addition the application ofOrgamin also produced the highest oil content in oil palmfruit particularly in the treatment of 75% of inorganicfertilizer + orgamin harvested in October compared to thosein March. Moreover, application of OP increased both thetotal weight and weight per bunch of FFB.AbstrakPengembangan kelapa sawit mengharuskan pengguna-an lahan suboptimal seperti daerah dataran tinggi. Produk-tivitas kelapa sawit menjadi tuntutan utama bagi pekebun.Peningkatan produktivitas kelapa sawit di dataran tinggididuga dapat dilakukan dengan aplikasi zat pengatur tumbuh.Zat pengatur tumbuh merupakan molekul “kecil” (small molecules) yang dalam jumlah relatif sangat sedikit mem-pengaruhi pertumbuhan/perkembangan tanaman. Penelitiandilakukan untuk menguji formula zat pengatur tumbuh(Orgamin dan Orgamin plus) dalam meningkatkan efisiensipemupukan dan produktivitas kelapa sawit TM 7. Percobaandilakukan di kebun Marjandi dengan ketinggian 700 dpl padaareal seluas 16 ha. Enam perlakuan yang diuji adalah 1).pupuk anorganik 100% (100K), 2). pupuk anorganik 50% +Orgamin (50K+O), 3). pupuk anorganik 75% + Orgamin(75K+O), 4). pupuk anorganik 50% + Orgamin plus (50K+OP), 5). pupuk anorganik 75% + Orgamin plus (75K+OP),dan 6). pupuk anorganik 100% + Orgamin plus (100K+OP)yang disusun dalam rancangan acak kelompok (RAK)dengan tiga ulangan. Orgamin (O) dan Orgamin plus (OP)diberikan dalam lubang di piringan pokok bersamaan denganpupuk anorganik. Hasil pengamatan menunjukkan bahwapemberian O dan OP dapat meningkatkan efisiensi pemupuk-an anorganik hingga 50% dilihat dari beberapa peubahvegetatif dan menghasilkan kadar N, P, dan K daun dantanah lebih tinggi dibandingkan dengan pemberian pupukanorganik 100%. Selain pada parameter tinggi tanaman danjumlah daun, peningkatan juga terlihat pada tingkatkehijauan daun. Terdapat indikasi bahwa pemberian Orgaminmeningkatkan persentase jumlah bunga betina. PemberianOrgamin juga menghasilkan kadar minyak tertinggi khusus-nya pada pemberian Orgamin + pupuk anorganik 75% padabuah yang dipanen bulan Oktober dibandingkan dengan buahyang dipanen bulan Maret. Baik data bobot per tandanmaupun bobot TBS menunjukkan bahwa pemberian OPdapat meningkatkan kedua peubah tersebut. 

2016 ◽  
Vol 81 (2) ◽  
Author(s):  
Happy WIDIASTUTI ◽  
Djoko SANTOSO ◽  
Soekarno Mismana PUTRA ◽  
Memed WIRAMIHARDJA ◽  
Aida FARIDA ◽  
...  

AbstractThe extension of oil palm area has been expanded tomarginal land such as the highland regions. However, theproductivity of the oil palm became the main demand for theplanters. Increasing of oil palm productivity can be done byapplication of growth regulators. Growth regulators aresmall molecules in a relatively very small amount that affectthe growth and development of plant. This study wasconducted to asses the efectiveness of plant growth regu-lators (Orgamin and Orgamin plus) in improving fertilizerefficiency and productivity of mature oil palm (TM 7). Theexperiments were conducted at Marjandi oil palm plantationat an altitude of 700 m above sea level in a total area of 16 ha. Six treatments tested were 1). 100% inorganicfertilizer (control), 2). 50% inorganic fertilizer + Orgamin(50K+O), 3). 75% inorganic fertilizer + Orgamin (75K+O),4). 50% inorganic fertilizer + Orgamin plus (50K+OP), 5).75% inorganic fertilizer + Orgamin plus (75K+OP), and 6).100% inorganic fertilizer + Orgamin plus (100K+OP)arranged in a randomized block design (RBD) with threereplications. Orgamin (O) and Orgamin plus (OP) wereapplied in the hole around the oil palm along with inorganicfertilizers. The results showed that application of O and OPimproved the efficiency of inorganic fertilizers by 50% basedon vegetative variables and increased the concentration ofN, P, and K of leaf and soil compared to those of 100%inorganic fertilizer. In addition to the height and leaf numberof plant parameters, the leaf of the plant treated with O andOP showed more greenish compared to those of control.There is an indication that the O application increased thepercentage of female flowers. In addition the application ofOrgamin also produced the highest oil content in oil palmfruit particularly in the treatment of 75% of inorganicfertilizer + orgamin harvested in October compared to thosein March. Moreover, application of OP increased both thetotal weight and weight per bunch of FFB.AbstrakPengembangan kelapa sawit mengharuskan pengguna-an lahan suboptimal seperti daerah dataran tinggi. Produk-tivitas kelapa sawit menjadi tuntutan utama bagi pekebun.Peningkatan produktivitas kelapa sawit di dataran tinggididuga dapat dilakukan dengan aplikasi zat pengatur tumbuh.Zat pengatur tumbuh merupakan molekul “kecil” (small molecules) yang dalam jumlah relatif sangat sedikit mem-pengaruhi pertumbuhan/perkembangan tanaman. Penelitiandilakukan untuk menguji formula zat pengatur tumbuh(Orgamin dan Orgamin plus) dalam meningkatkan efisiensipemupukan dan produktivitas kelapa sawit TM 7. Percobaandilakukan di kebun Marjandi dengan ketinggian 700 dpl padaareal seluas 16 ha. Enam perlakuan yang diuji adalah 1).pupuk anorganik 100% (100K), 2). pupuk anorganik 50% +Orgamin (50K+O), 3). pupuk anorganik 75% + Orgamin(75K+O), 4). pupuk anorganik 50% + Orgamin plus (50K+OP), 5). pupuk anorganik 75% + Orgamin plus (75K+OP),dan 6). pupuk anorganik 100% + Orgamin plus (100K+OP)yang disusun dalam rancangan acak kelompok (RAK)dengan tiga ulangan. Orgamin (O) dan Orgamin plus (OP)diberikan dalam lubang di piringan pokok bersamaan denganpupuk anorganik. Hasil pengamatan menunjukkan bahwapemberian O dan OP dapat meningkatkan efisiensi pemupuk-an anorganik hingga 50% dilihat dari beberapa peubahvegetatif dan menghasilkan kadar N, P, dan K daun dantanah lebih tinggi dibandingkan dengan pemberian pupukanorganik 100%. Selain pada parameter tinggi tanaman danjumlah daun, peningkatan juga terlihat pada tingkatkehijauan daun. Terdapat indikasi bahwa pemberian Orgaminmeningkatkan persentase jumlah bunga betina. PemberianOrgamin juga menghasilkan kadar minyak tertinggi khusus-nya pada pemberian Orgamin + pupuk anorganik 75% padabuah yang dipanen bulan Oktober dibandingkan dengan buahyang dipanen bulan Maret. Baik data bobot per tandanmaupun bobot TBS menunjukkan bahwa pemberian OPdapat meningkatkan kedua peubah tersebut. 


2021 ◽  
Vol 4 (2) ◽  
pp. 130-138
Author(s):  
Silvana Prameswari ◽  
Bayu Pratomo

Introduction: This study aims to obtain concentration of shallot extract (Allium cepa ) and growth regulators to increase growth of Mucuna bracteata. Mucuna is a land cover plant that must be planted in oil palm plantation areas. It is very important to be able to cover the planting area. Materials and Methods: This study used two factorial in randomized block design. The first was concentration of shallot extract per 100 ml distilled water consists of 4 levels, such as control (B0), 10 cc (B1), 20 cc (B2), 30 cc (B3) and the second was the auxins-plant growth regulator consists of 4 levels: Control (G0), 100 ppm (G1), 200 ppm (G2), 300 ppm (G3). Data analyzed with ANOVA with a significant 5% and continued with the DMRT using SAS version 9.1.3. Results: It was found that effect of concentration of shallot extract had a significant effect on survival percentage of Mucuna bracteata at a concentration of 10 cc (B2) after opening the lid at four weeks after planting (WAP) and did not change until 8 WAP. Likewise, the number of leaves at the control concentration (B0) at the age of 6 WAP, and a concentration of 10 cc (B1) at the age of 7-8 WAP. The concentration of growth regulators and their interactions did not significantly affect the survive percentage and number of leaves in Mucuna bracteata.


2020 ◽  
Vol 48 (2) ◽  
pp. 210-217
Author(s):  
Tri Astuti ◽  
Suwarto ◽  
Herdhata Agusta ◽  
Irzal Effendi

Rice-fish farming is a model that is considered suitable to be applied in rice fields, both on a large or limited land as long as water availability is sufficient for rice and fish to grow. In rice-fish farming, there is integration between fisheries and agriculture where integration can improve the efficiency of the supply and use of fertilizer and feed. The research aimed to find the reduction of inorganic fertilizer in integrated rice-fish farming with the rice-fish system to increase fertilizer efficiency. The experiment used a single factor randomized block design with five levels of treatment, which are; rice monoculture with 100% inorganic fertilizer, fish monoculture, rice-fish farming with 100% inorganic fertilizer, rice-fish farming with 60% inorganic fertilizer, and rice-fish farming with 20% inorganic fertilizer. Rice-fish farming could reduce the application of inorganic fertilizers through complementary relationships between rice and fish. Applying inorganic fertilizer 20% of the reference dose in the rice-fish farming produced productivity that was not significantly different from the rice-fish farming fertilized with 60% and 100% of the reference dose, and the rice monoculture with 100% of the reference dose of inorganic fertilizer. Rice-fish farming could save 80% of inorganic fertilizers so that increasing the efficiency of using inorganic fertilizers. Fish survival and fish weight in rice-fish farming were not significantly different from fish monoculture. Keywords: inorganic fertilizer, monoculture, productivity, soil nutrients


2012 ◽  
Vol 40 (1) ◽  
pp. 212 ◽  
Author(s):  
Ines HAN DOVEDAN ◽  
Sanja MORIC ◽  
Zoran SINDRAK ◽  
Ivana CEROVSKI ◽  
Ivan MUSTAC ◽  
...  

Iris adriatica is indigenous to Mediterranean part of Croatia. It is an attractive plant and has opportunities for introduction into horticulture and the ornamental plant market. Research was conducted in the experimental garden of the Faculty of Agriculture, University of Zagreb, to assess the possibility of growing this species as a pot plant. Research included 360 potted plants placed as randomized block design experiment. The goal of this research was to determine influence of chosen substrates and fertilizers, as well as to explore growth and development dynamic of the species cultivated outdoors from June till August 2010. The following characteristics were measured: plants height, number of leaves, and number of rosettes. Biometric analysis showed that the development of Iris adriatica was significantly influenced only by substrate, while fertilization and interaction of substrate and fertilization showed no significant impact on examined plants characteristics.


Author(s):  
Totong Siwanto ◽  
Sugiyanta , ◽  
Maya Melati

ABSTRACT<br />Application of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of  application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.<br />Keywords: NPK, organic fertilizer, paddy rice


2020 ◽  
Vol 8 (07) ◽  
pp. 296-303
Author(s):  
Rosmadelina Purba ◽  
Jonner Purba ◽  
Furqon Harkesa Damanik

The purpose of this research was to discover the effect of solid and NPK fertilizer, as well as the interaction of solid and NPK fertilizer on the growth and production of green eggplant. This research used a factorial randomized block design with two treatment factors, namely the first factor: Administrationof oil palm solid which consisted of 4 levels of treatment, namely: S0 = No palm oilwaste solid; S1 = Administration of palm oil waste solid at 0.5 kg/m2; S2 = Administration of palm oil waste solid at 1 kg/m2; S3 = Administration of palm oil waste solid at 1.5 kg/m2. The second factor is the addition of NPK fertilizer per plant (J) consisting of 3 levels of treatment, namely: J0 = 0 g/plant; J1 = 5 g/plant; J2 = 10 g/plant. The results showed that solid treatment significantly affected the plants height at ages 2, 4, and 6 MST, flowering age, production per plant, and production per plot. The treatment of Solid S3 produced the highest plants aged 2, 4, and 6 MST, respectively (21.78 cm), (53.45 cm), and (77.78 cm), the fastest flowering age (32.89 days), highest production per plant (1748.77 g), and highest production per plot (21.89 kg). The NPK treatment significantly affected the plants height at ages 4 and 6 WAP, flowering age, production per plant, and production per plot. The NPK J2 fertilizer dosage treatment produced the highest plants aged 4 and 6 WAP, respectively (47.83 cm), and (75.84 cm), the fastest flowering age (32.91 days), the highest production per plant (1562.91 g), and the highest production per plot (19.86 kg). The interaction treatment of the NPK fertilizer and solid administration did not significantly affect all parameters. The combination of S3J2 produced the highest plants aged 2 and 6 WAP, respectively (22.33 cm) and (79.67 cm), the fastest flowering age (32.33 days), the highest production per plant (1816.67 g), the and highest production per plot (22.49 kg).  


2019 ◽  
Vol 1 (2) ◽  
pp. 113-122
Author(s):  
Heru Kurniawan ◽  
Asmah Indrawati ◽  
Gusmeizal Gusmeizal

Okra plant is becoming to be one of favortite vegetable in Indonesia since then the deman of this plant is growing very rapidly. The aim of this research is to Utilize Palm Oil Liquid Organic Fertilizer and M-Bio Biofertilizer Against Growth and Production in Okra Plants (Abelmoschusesculentus  L.  Moench).  This  study  used  a  Randomized  Block  Design (RBD) with 2 replications. Factorial consisting of II treatment factors, Factor I treatment given P0: Without Liquid Palm Oil Organic Fertilizer, P1: Provision of PKS liquid fertilizer and Factor II, treatment of giving M-Bio. Parameters observed in this study were  vegetative dan generative. The results showed that the treatment of oil palm liquid organic fertilizer had no significant effect on vegetative and generative observed parameters. The treatment of M-Bio biofertilizer significantly affected the vegetative and generative observation parameters where the best dose was treatment  6%. The treatment of the combination of liquid organic fertilizer from palm oil waste and M-Bio biological fertilizer has no significant effect on all parameters of vegetative and generative observations.


EUGENIA ◽  
2015 ◽  
Vol 21 (1) ◽  
Author(s):  
J. Rimbing ◽  
J. Pelealu ◽  
D. Sualang

ABSTRACT   The research was arranged in a randomized block design (RBD), with 10 treatments and 3 replications. To get the active insects pests, net sweepings were done for the flying insects, while other pests were observed directly on the plants. Collecting data of plant damages were made by systematic diagonal lines, except for viruses, census was conducted on each experimental plot.  The results of this experiment documented 12 species of insect pests attacking soybean plants. Soybean pest populations were relatively low, except for Aphis glycine that was quite high. In all treatments, plant damage caused by sucking pest Piezodorus sp and Riptortus linearis were relatively low of 1.53 % to 1.94 %; it indicated an insignificant effect to decline the production. Crop damages by virus showed a significant effect. The lowest virus attacks found on compost of 5 tons per ha with 43 plants infected per treatment, the highest virus attack showed on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which there were 274 infected plants per treatment. Apparently virus attacks gave impact on soybean production. The highest production were documented on treatment of 5 tons compost per ha with production of 0.55 tons per ha, while the lowest production was found on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which the production was 0.22 tons per ha. Keywords:  fertilizer, mulch, insect pest, production


2020 ◽  
Vol 48 (4) ◽  
pp. 565-573
Author(s):  
Árpád Illés ◽  
S. M. Nasir Mousavi ◽  
Csaba Bojtor ◽  
Janos Nagy

AbstractIn recent years, producers of agricultural products have increased the use of chemical fertilizers per unit area. The goal of this research was to analyze the interaction of genotype in treatment (NPK fertilizer) on grain yield, protein content, oil content, and the starch content on 13 maize hybrids using analysis by the model of additive and multiplier effects AMMI and to evaluate genotypes, treatments, and their interactions using biplot in Hungary. Treatments include NPK0 (N: 0 kg/ha, P2O5:0 kg/ha, K2O: 0 kg/ha), NPK1 (N: 30 kg/ha, P2O5: 23 kg/ha, K2O: 27 kg/ha), NPK2 (N: 60 kg/ha, P2O5: 46 kg/ha, K2O: 54 kg/ha), NPK3 (N: 90 kg/ha, P2O5: 69 kg/ha, K2O: 81 kg/ha), NPK4 (N: 120 kg/ha, P2O5: 92 kg/ha, K2O: 108 kg/ha), NPK5 (N: 150 kg/ha, P2O5: 115 kg/ha, K2O: 135 kg/ha) in four replications based on complete randomized block design in 2019. The NPK fertilizer effects indicate that the fertilizers are different on yield genotype. AMMI analysis showed that there was a significant difference between genotypes, treatment, and the interaction effect of genotype * treatment at one percent. Besides, the maximum yield had Loupiac and NPK3 on grain yield, Loupiac and NPK2 on oil content, P0023, and NPK3 for starch content, DKC 3/ES4725 (DKC4725) and NPK3 for protein content. Also, GGE biplot analysis indicates that had maximum grain yield in Loupiac, protein content in P9978, oil content in MV Maronetta, and starch content in Sushi.


2017 ◽  
Vol 2 (6) ◽  
pp. 179
Author(s):  
Betty Natalie Fitriatin ◽  
Pujawati Suryatmana ◽  
Anny Yuniarti ◽  
Noor Istifadah

Ultisols has problems of low availability of nutrients, especially phosphorus. To improve soil phosphate and P fertilizer efficiency, it is necessary to develop biofertilizer such as phosphate solubilizing microbes. Phosphate solubilizing microbes (PSM) have the capability of dissolving soil phosphorus which have been adsorbed and can mineralize organic P to become inorganic P, hence increasing the avalibility of P in the soil. Phosphate solubilizing bacteria (Pseudomonas mallei and Pseudomonas cepacea) and phosphate solubilizing fungi (Penicillium sp. and Aspergillus sp) were selected based on their ability to dissolve P. The experiment was conducted at Jatinangor, West Java Indonesia to study the application of PSM biofertilizer to increase soil P and yield of maize. Experiment used a Randomized Block Design (RBD) in factorial pattern, consisting of two factors with three replications. The first factor consisted of PSM biofertilizer, which were; without PSM, 5 L ha-1 of PSM and 50 kg ha-1 of PSM.  The second factor was P fertilizer with five levels (0%, 25%, 50%, 75% and 100% dosage of recommendation). The results showed that the application of PSM biofertilizer increased soil phosphate and yield of maize on Ultisol Jatinangor.  The dosage of P inorganic fertilizers was reduced by 50%.Keywords: ultisol, maize, biofertillizer, phospate-solubilizing bacteria.


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