scholarly journals Peningkatan Produktivitas Lahan Gambut melalui Teknik Ameliorasi dan Inokulasi Mikroba Pelarut Fosfat

Jurnal Agro ◽  
10.15575/76 ◽  
2014 ◽  
Vol 1 (1) ◽  
pp. 1-13
Author(s):  
Ida Nur Istina ◽  
Benny Joy ◽  
Aisyah D Suyono
Keyword(s):  
Palm Oil ◽  
Agricultural Development ◽  
Block Design ◽  
Peat Soil ◽  
Dry Weight ◽  
Nutrient Content ◽  
P Uptake ◽  
Leaf Length ◽  
P Availability ◽  
Phosphate Solubilizing

Keterbatasan lahan potensial menyebabkan perluasan areal pertanian mengarah pada lahan gambut. Kendala pengembangan lahan gambut adalah rendahnya kandungan hara tersedia bagi tanaman. Fosfat (P) merupakan salah satu unsur hara makro yang penting untuk pertumbuhan dan produksi tanaman, disisi lain ketersediaan hara ini pada lahan gambut terbatas karena ikatan asam organik dan sifat yang mudah tercuci. Penelitian untuk menguji pengaruh ameliorasi dan inokulasi mikroba pelarut fosfat terhadap ketersediaan hara P di lahan gambut dilakukan di kebun pembibitan kelapa sawit petani di Riau dari Oktober 2013 - Maret 2014, menggunakan Rancangan Acak Kelompok pola Faktorial dengan 30 kombinasi perlakuan dan 3 kali ulangan. Variabel yang diamati meliputi : tinggi tanaman, lingkar batang, jumlah daun, lebar daun, panjang daun, kandungan hara tanaman, dan bobot biomasa bibit setelah 5 bulan di pembibitan. Hasil penelitian menunjukkan bahwa ameliorasi menggunakan kompos tandan kosong kelapa sawit mampu meningkatkan P tersedia, serapan P oleh batang dan akar, berat brangkasan dan berat kering batang. Sedangkan mikroba pelarut fosfat berpengaruh secara tidak nyata.The limitation of potential land leads agricultural development expansion to the peat soil area. Constrain of the peatland development is the low nutrient content that is required by plant. Phosphate is one of major growth and production limiting nutrient because of the solublelize of the organic acids and immobility The research was conducted from October 2013 – March 2014 at the farmer main nursery in Riau province to test the effect of amelioration and phosphate solubilizing microbe inoculation on P availability on palm oil seedling growth and production at peatland, used Randomized Block Design with 30 treatments and 3 replications. The parameters observed were plant height, leaf number, leaf width, leaf length, stem diameters, nutrient contents, also fresh and dry weight after 5 months at the main nursery. The result showed that palm oil empty fruit bunch compost as ameliorant increased P nutrient avaibility, P uptake, fresh and dry weight, whereas phosphate solubilizing microbe was unsignificant.

scholarly journals SUMBANGAN MIKROBA PELARUF FOSFAT INDEGENUS TERHADAP PENINGKATAN PRODUKTIVITAS LAHAN PERTANIAN DI PROVINSI RIAU

2020 ◽  
Vol 35 (3) ◽  
pp. 27-34
Author(s):  
Ida Nur Istina ◽  
Nurhayati Nurhayati ◽  
Jakoni Jakoni
Keyword(s):  
Agricultural Development ◽  
Block Design ◽  
Peat Soil ◽  
Soil Nutrient ◽  
Nutrient Content ◽  
Vegetable Crops ◽  
Recommended Dosage ◽  
Randomized Block Design ◽  
Phosphate Solubilizing ◽  
Nutrient Analyses

ABSTRACT   The obstacle to agricultural development in peatlands is the low nutrient content needed for plant growth. One effort that can be done to increase agricultural productivity in peatlands is a friendly environmental fertilization. This research aims to find out the role of indigenous phosphate solubilizing microbes in enhanced peat soil fertility in Kampar District in 2014 by using a Factorial Randomized Block Design with 3 replications. First factor was MPF inoculation (control; Burkholderia gladioli and penicillium aculeatum), and the second factor was Ameliorants (Control, Oil Palm Empty Fruit Bunch (TKKS) Compost, 4 kg TKKS compost/polybag and 25% recommended dosage, 4 kg TKKS compost/polybag and 50% recommended dosage, 4 kg TKKS compost/polybag and 75% recommended dosage, 4 kg TKKS compost/polybag and 100% P recommended dosage. Soil Nutrient analyses carried out at the laboratories of Vegetable Crops Research Institute Lembang. The parameters observed were: soil content of nutrients N, P, K, Ca, and Mg. The results showed that the indigenous phosphate solubilizing microbe increased the soil's nutrient content.

scholarly journals Aplikasi Cendawan Pelarut Fosfat Indigenous Tanah Sawah Meningkatkan Ketersediaan dan Serapan P Padi Sawah

2017 ◽  
Vol 45 (1) ◽  
pp. 9-13
Author(s):  
Dermawan Hutagaol ◽  
Iwan Hasrizart ◽  
Dan Ahmad Sofian
Keyword(s):  
Block Design ◽  
P Uptake ◽  
Rice Production ◽  
P Availability ◽  
Rice Grains ◽  
Fertilizer Experiment ◽  
Randomized Block Design ◽  
Npk Fertilizer ◽  
Phosphate Solubilizing ◽  
Available Information

Increasing P availaibility can be done using Phosphate solubilizing microorganism, but available information about indigenous phosphate solubilizing microorganism utilization from paddy soil that intensively fertilized with P is limited. The objectives of this experiment were to isolate, to select and to test the potential  of phosphate solubilizing fungi (PSF) in  increasing P availability, P uptake and rice production. Five isolates of PSF, referred to A1, A2, A3, A4 and A5 isolates, were belong to the Aspergillus genera. Field experiment was arranged in a randomized block design with one factor and 3 replications. The treatments consisted of 11 combinations of PSF and NPK fertilizer, i.e., without PSF + 100% rate of NPK fertilizer; PSF A1 + 50% rate of NPK fertilizer; PSF A1 + 100% rate of NPK fertilizer; PSF A2 + 50% rate of NPK fertilizer; PSF A2 + 100% rate of NPK fertilizer; PSF A3 + 50% rate of NPK fertilizer; PSF A3 + 100% rate of NPK fertilizer; PSF A4 + 50% rate of NPK fertilizer; PSF A4 + 100% rate of NPK fertilizer; PSF A5 + 50% rate of NPK fertilizer; PSF A5 + 100% rate of NPK fertilizer. Experiment results showed that application of  PSF isolates increased P availaibility, P uptake, rice growth and rice production significantly. Application of PSF A1 + 50% rate of NPK fertilizer was  the best treatment as indicated by the increased in weight of 1,000 rice grains, P availaibility and P uptake

Effect of INM on nodulation, yield, quality and available nutrient status in soil after harvest of greengram

2016 ◽  
Author(s):  
Yubaraj Dhakal ◽  
Ram Swaroop Meena ◽  
Sushil Kumar
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Uttar Pradesh ◽  
Dry Weight ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Phosphate Solubilizing Bacteria ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Phosphate Solubilizing

A field experiment was carried out at Varanasi (Uttar Pradesh) during kharif season of 2013 to study the influence of integrated nutrient management on greengram [Vigna radiata (L.) Wilczek].Three sources of nutrients viz. inorganic, organic and bio-fertilizers were used in twelve combinations with randomized block design. Among different combinations, significant improvement in number of nodules/plant (80.97), dry weight of nodules (32.89 mg/plant), yield attributes, seed yield (12.34 qt/ha), harvest index (28.32%), nutrient content, available NPK and organic carbon after harvest in soil were recorded with application of nutrients through 75% RDF + 2.5 t/ha vermicompost + rhizobium + Phosphate solubilizing bacteria (PSB) as compared to other combinations and control, but it was at par with 100% RDF + 2.5 t/ha vermicompost and 100% RDF + rhizobium + PSB.

scholarly journals Biochemical activity and bioassay on maize seedling of selected indigenous phosphate-solubilizing bacteria isolated from the acid soil ecosystem

2020 ◽  
Vol 5 (1) ◽  
pp. 300-304
Author(s):  
Betty Natalie Fitriatin ◽  
Dita Fauziah ◽  
Fabira Nur Fitriani ◽  
Dewi Nurma Ningtyas ◽  
Pujawati Suryatmana ◽  
...  
Keyword(s):  
Acid Soil ◽  
Block Design ◽  
Maize Seedling ◽  
P Availability ◽  
Phosphate Solubilizing Bacteria ◽  
Soil Ecosystem ◽  
Maize Productivity ◽  
Randomized Block Design ◽  
Phosphate Solubilizing ◽  
Microbial Fertilizers

AbstractPhosphorus availability is the major constraint for plant growth in the acid soil ecosystem, due to high fixation by Al and Fe. Microbial fertilizers such as phosphate-solubilizing bacteria (PSB) can increase P availability in soils for root uptake. The objective of the research was to verify the ability of four isolates of PSB isolated from acid soil to solubilize unavailable inorganic phosphate, produce phosphatase, malic acid and indole acetic acid (IAA), as well as increase plant height of maize seedling. The bioassay by growing maize seedling in liquid nutrients has been performed to study the response of seedling to PSB inoculation. The experimental design of bioassay was a randomized block design with five replications. The results showed that the isolates RR 1 and SPR 4 had a relatively high solubilizing index. Moreover, all the PSB isolates had the ability to produce phosphatase and IAA and dissolve P. The performance of PSB-inoculated seedling was better visually and the root length was increased by 66.7–74.5% compared to the control. This result concludes that the species of four isolates needs to be identified by a biomolecular method and formulated as biofertilizers for increasing the maize productivity in the acid soil ecosystem.

scholarly journals PENGARUH KONSORSIUM AGENS HAYATI DAN JARAK TANAM TERHADAP KEJADIAN PENYAKIT BUSUK PUTIH (Sclerotium cepivorum Berk.) PADA BAWANG DAUN Influence of The Consortium of Biological Agents and Spacing to White Rot Disease (Sclerotium cepivorum Berk.) of Scallio

AgriPeat ◽  
2019 ◽  
Vol 20 (02) ◽  
pp. 92-98
Author(s):  
Admin Journal
Keyword(s):  
Block Design ◽  
Peat Soil ◽  
Nutrient Content ◽  
Biological Agents ◽  
White Rot ◽  
Plant Weight ◽  
Sclerotium Cepivorum ◽  
Trichoderma Sp ◽  
Rot Disease ◽  
Aspergillus Sp

ABSTRACTThis study aims to determine effective management patterns to control Sclerotium rot and to improvepeat soil fertility with the application of the Trichoderma sp + Aspergillus sp consortium.as biologicalagents and P solvents, combined with spacing arrangements in the cultivation of scallion in peatlands.The study used a factorial randomized block design consisting of two factors with four replications.Factor I Application of biological agents consists of: A0 = No biological agents; A1 = Consortium ofTrichoderma sp. + Aspergillus sp; Factor II Plant spacing, consisting of J1 = 20x25 cm; J2 = 25x25cm and J3 = 30x25 cm. The results showed that the interaction treatment of Trichoderma sp. +Aspergillus sp. and spacing of 25x25 cm effectively suppresses the incidence of white rot disease(Sclerotium cepivorum Berk) up to 34.02%, while at a spacing of 20x25 cm with the application ofTrichoderma sp. + Aspergillus sp. produced the highest fresh plant weight of 8.80 kg plot-1 or 24.44tons hectares-1. Increasing the number of leaves is only influenced by a single factor of biologicalagents (23.29%) and spacing of 25x25 cm (19.7%). Application of Trichoderma sp. + Aspergillus sp.can increase the nutrient content of N, P (total and available), K and peat soil organic matter.Consortium of biological agents Trichoderma sp. and Aspergillus sp. indigenous have the potential tobe developed as biological agents and biofertilizers, with optimum spacing can be applied to themanagement of scallion cultivation in peatlands.Key words: Sclerotium cepivorum Berk, scallion, Trichoderma sp. and Aspergillus sp., spacing

scholarly journals Effect of Vermicompost and Compound inorganic Fertilizer on Soil Phosphate Availability and Yield of Potatoes (Solanum tuberosum L.) Grown in Andisols

Agrologia ◽  
2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Reginawanti Hindersah ◽  
Agnia Nabila ◽  
Ani Yuniarti
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Soil Health ◽  
P Uptake ◽  
Chicken Manure ◽  
P Availability ◽  
Soil P ◽  
Randomized Block Design ◽  
Npk Fertilizer

Potatoes (Solanum tuberosum L.) which are comonly grown  in the highland with Andisols require organic and inorganic fertilizers to maintain soil health  and increase yield. The purpose of field experiment  was to obtain information on the effect of vermicompost with and without NPK fertilizer  on soil acidity,  soil phosphor (P) availability and P uptake in potatoes shoot; as well as yield and quality of tuber. The experimental design was a randomized block design with eight treatments and three replication. The treatment consisted of a combination of vermicompost doses (5 and 10 t/ha)  with NPK fertilizer doses (0; 0.5 t/ha and 1 t/ha). The two control treatments were 1) without fertilizer and 2) the method of fertilizing local farmers included 10 t /ha chicken manure and 1 t/ha NPK fertilizer. This experiment verified  that vermicompost and NPK fertilizer increased plant height as well as soil P availability and acidity compared to those of control. Vermicompost has not yet substitute chicken manure to obtain the same tuber production although the percentage of marketable tuber was quite similar.  Keywords : Andisols, NPK Fertilizer, Phosphorus, Potato, Vermicompost.

scholarly journals Respon Pertumbuhan Bibit Salak (Salacca Zallaca) terhadap Dosis Spora Endomikoriza pada Media Pembawa Pasir Kuarsa dan Zeolit

2020 ◽  
Vol 10 (1) ◽  
pp. 18
Author(s):  
NI KADEK ARYANI ◽  
I NYOMAN RAI ◽  
NI NYOMAN ARI MAYADEWI
Keyword(s):  
Leaf Area ◽  
Quartz Sand ◽  
Block Design ◽  
Dry Weight ◽  
Nutrient Content ◽  
Root Infection ◽  
Shoot Dry Weight ◽  
Randomized Block Design ◽  
Total Dry Weight ◽  
Leaf P

Response of Salak Seedlings (Salacca Zallaca) Growth to Dosage of Endomycorrhizal Spore in Quartz Sand and Zeolite Carrier Media. This study aimed to study the effect of endomycorrhizal spore dosage and carrier media that were applied directly to the roots of salak plants. The research designed as factorisl by using Randomized Block Design with 2 treatment factors. The first factor was number of endomycorrhiza spores consists of 4 levels i.e 0, 75, 150, and 225 spores per 500 g carrier media per polybag, while the second factor was the type of carrier media consist of 2 levels i.e zeolite and quartz sand. The results showed that interaction between endomycorrhizal spore dosage with   carrier   media   did   not   significantly   influence   the   growth   of   salak   seedlings. Endomycorrhizal spores in doses of 75, 150 and 225 spores per polybag increased root infection and leaf P nutrient content compared to control, but seed height, leaf area, shoot dry weight, root dry weight and total dry weight of seedlings not significantly difference. The zeolite carrier media caused root infection by mycorrhizal was higher than quartz sand media, but the P nutrient uptake and seedling growth were not significantly different. Based on the results of this study it is necessary to make a longer observation of the effect of endomycorrhizal spore doses and carrier media on the growth of salak seedlings.

scholarly journals Leaf Morphological Chara cteristics of Leaf Lettuce (Lactuca sativa L.) as Affected by Different Colored Plastic Mulch

2015 ◽  
Vol 3 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Edmar Franquera
Keyword(s):  
Block Design ◽  
Morphological Characteristics ◽  
Dry Weight ◽  
The Philippines ◽  
Leaf Length ◽  
Plastic Mulch ◽  
Romaine Lettuce ◽  
Lactuca Sativa L ◽  
The University ◽  
Leaf Lettuce

Looseleaf and Romaine lettuce were grown in a vegetable experimental station in the University of the Philippines Los Banos to determine the effect of the different colored plastic mulch on the leaf morphological characteristics of the two lettuce varieties. A split plot following the Randomized Completely Block Design was used. Results of the study showed that red plastic mulch exhibited better response in terms of the different leaf morphology of the leaf lettuce. Lettuce leaf length, leaf diameter, leaf fresh and dry weight were higher when grown with red plastic mulch compared with the other colored plastic mulch. The result of the study showed that the color of the mulch had significant effect on the leaf morphological characteristics of the leaf lettuce.

scholarly journals Effect Of Grant Palm Oil Ash To The Growth And Production Of Two Corn Varieties (Zea Mays L) In Peatland

2020 ◽  
Author(s):  
Marlina
Keyword(s):  
Zea Mays ◽  
Palm Oil ◽  
Zea Mays L ◽  
Soil Analysis ◽  
Block Design ◽  
Peat Soil ◽  
Randomized Block Design ◽  
Maize Varieties ◽  
Two Factors

The study, entitled the effect of the administration of Palm Oil Long Palm (AJKS) to the growth and production of two corn varieties inpeatlands, was carried out from October 2017 to March 2018 in trench 3 in Tembilahan Hulu Village, Tembilahan Hulu District, Indragiri Hilir Regency,soil analysis and AJKS conducted at the Bogor Institute of Agriculture Laboratory. The purpose of this study was to determine the effect of AJKSadministration on the growth and production of two maize varieties (Zea mays L) on peatlands, and to determine whether there was an interactionbetween the dosage of AJKS and corn varieties on peat soil ameliorating AJKS. The design used was factorial Randomized Block Design (RBD) using 2factors with three replications. The first factor is the dose of AJKS administration consisting of 4 levels, namely: A0: 0 kg / ha, A1: 500 kg / ha, A2: 1000kg / ha, A3: 1500 kg / ha. The second factor is corn varieties with 2 levels, namely: V1: Pioneer Varieties and V2: Varieties N35. Of the two factors aboveobtained 8 treatment combinations. Based on the results of research that has been done, that there is no real interaction and influence between thetreatment of giving AJKS with varieties to all observed parameters. Giving AJKS 1500 kg / ha gives the highest yields on all parameters observed exceptfor the number of cobs, Pioneer variety is the variety that responds most to AJKS administration.

scholarly journals Turfgrass Evaluation Under Artificial Shade in the Greenhouse

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 520F-521
Author(s):  
Mark R. LeBlanc ◽  
James N. McCrimmon
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Leaf Length ◽  
The Sun ◽  
Average Decrease ◽  
Greenhouse Study ◽  
Randomized Block Design ◽  
Shade Cloth ◽  
Stolon Length ◽  
Total Dry Weight

Establishing and maintaining turfgrass in the shade is one of the most challenging problems facing turfgrass managers and home owners. A greenhouse study was initiated to determine the shade tolerance of centipedegrass [Eremochloa ophiuroides (Munro.) Hack.], carpetgrass [Axonopus affinis Chase], and selected St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze] cultivars (`Floratam', `FX-10', `Seville', and `TR 6-10'). Plants were grown under artificial shade (85% polypropylene shade cloth) and full sun. Actual percent shade (%shade={PAR under shade/PAR under sun}*100) was determined by measuring photosynthetically active radiation (PAR) under shade cloth and full sun adjacent to the shade structure using a quantum sensor. Pots were arranged in a completely randomized block design with four replications. All turfgrasses, except `TR 6-10', had a significant reduction in total dry weight in the shade compared to those in the sun. `TR 6-10' had the highest root, leaf, and total dry weight in the shade. `FX-10' had the lowest root, leaf, and total dry weight in the shade. Plants grown under the shade treatment compared to those in the sun resulted in an average decrease in stolon number of 13 and in total stolon length of 170 cm. In the shade, `Floratam' and `Seville' had the longest stolon internode lengths, while `Floratam' had the longest in the sun. There were significant differences for leaf length between the shade and sun treatments, except for carpetgrass and `FX-10'. `Floratam' and `FX-10' had differences in leaf width between the sun and shade.

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