scholarly journals EFEKTIVITAS BERBAGAI BAHAN FORMULA PUPUK HAYATI SIANOBAKTERI TERHADAP PERTUMBUHAN DAN HASIL PADI GOGO VARIETAS SITU BAGENDIT

2021 ◽  
Vol 8 (2) ◽  
pp. 415-426
Author(s):  
Wahyu Satria Eginarta ◽  
Yulia Nuraini ◽  
Jati Purwani
Keyword(s):  
Environmental Sustainability ◽  
Rock Phosphate ◽  
Human Life ◽  
Block Design ◽  
Soil Biology ◽  
Randomized Block Design ◽  
Production Increase ◽  
Bacteria And Fungi ◽  
Biology Laboratory ◽  
Land Health

Rice is an important commodity in human life where its production increase must be followed by environmental sustainability and land health. The achievement of increased rice production supported by environmental sustainability can be achieved by utilizing biological fertilizers. One of the microbes that can be used as nutrient providers for rice plants is cyanobacteria. This study was carried out in a greenhouse and soil biology laboratory of the Indonesian Soil Research Institute using a randomized block design with four replications. The treatments tested consisted of F0 (without treatment), F1 (wet cyanobacteria isolate), F2 (dry cyanobacteria isolate), F3 (cyanobacteria + rock phosphate), F4 (cyanobacteria + biochar), F5 (cyanobacteria + kaolin), F6 (cyanobacteria + rock phosphate + kaolin), F7 (cyanobacteria + rock phosphate + biochar), F8 (cyanobacteria + kaolin + biochar). The results showed that the cyanobacteria formula treatment with biochar (F4) carriers showed the highest total population in the parameters of the cyanobacteria population, bacteria, and fungi so that the interaction was said to be positive. The application of cyanobacteria formula to soil chemistry did not significantly affect the post-harvest soil N, P, and K, while the increase in soil pH occurred in the overall treatment of the cyanobacteria formula. Treatment of cyanobacteria formula with biochar carrier (F4) had significantly different results on parameters of number of tillers, number of panicles, grain weight, number of grains.

scholarly journals Uji Infektifitas dan Efektifitas Rhizobia sp. terhadap Tanaman Kedelai di Rumah Kasa pada Tanah Ultisol dengan pH yang Berbeda

2018 ◽  
Vol 5 (1) ◽  
pp. 75-87
Author(s):  
M. Reza Alfikri ◽  
Hardy Guchi ◽  
Asmarlaili Sahar Hanafiah
Keyword(s):  
Root Nodule ◽  
Block Design ◽  
Soil Biology ◽  
Fixed Nitrogen ◽  
N Level ◽  
Randomized Block Design ◽  
Plant Level ◽  
Biology Laboratory ◽  
Screen House ◽  
Infectivity Test

Rhizobia fixed nitrogen from the air and supplied legume and effected to soil fertility. The research was conducted in May 2017 until November at Soil Biology Laboratory and Screen House of Agriculture Faculty University of Sumatera Utara. This research was carried out with 2 stages: growth test at various pH with isolate tested (TJA 1, TJA 2, TJA 3, BGR 1, BGR 2, BGR 3, BGR 4, BALAI 1, BALAI 2, BALAI 3, LP 1, LP 2, LP 3, LP 4 and LAB) and the infectivity test and the effectivity of Rhizobia. The research used Randomized Block Design with 2 treatment: Lime (Without Lime and Lime 1 x Aldd) and Isolate Rhizobia (TJA 1, TJA 3, BGR 1, BGR 3, BGR 4, BALAI 2, BALAI 3, LP 1, LP 2, LP 4 and LAB). The application of Rhizobia’s isolate BGR 3 showed the infektively with root nodule amount criteria(124,00). The isolate Rhizobia’s BGR 3 effectively increased N plant level and N absorption (3,80 %; 31,08mg/plant). Application of isolate Rhizobia was not able to increase the level of P plants and P plant uptake. The best interaction was shown (Plant height 85.00 cm, stem diameter 3.93 mm, root nodule 127.50, N level of 3.80%, N absorption 30.16 mg / plant) by treatment of BGR 3 and Lime 1 x Aldd.

The role of Vesicular Arbuscular Mycorrhiza (VAM) and rock phosphate application on production and nutritional value of centro legumes(Centrosema pubescens)

2016 ◽  
Vol 39 (6) ◽  
Author(s):  
Nyimas Popi Indriani ◽  
Yuyun Yuwariah ◽  
Ana Rochana ◽  
, Iin Susilawati ◽  
Lizah Khairani
Keyword(s):  
Arbuscular Mycorrhiza ◽  
Dry Matter ◽  
Nutritional Value ◽  
Rock Phosphate ◽  
Block Design ◽  
Vesicular Arbuscular Mycorrhiza ◽  
Optimum Dosage ◽  
Randomized Block Design ◽  
Vesicular Arbuscular

The role of Vesicular Arbuscular Mycorrhiza (VAM) and rock phosphate application on production and nutritional value of centro legumes was studied. The aim of the study was to know the interaction of rock phosphate and VAM and to know the optimum dosage of VAM and rock phosphate on production and nutritional value of centro legumes. The experimental design was randomized block design. The treatments and rock phosphate levels was 0, 100, 200 and 300 kg ha-1 of P2O5 with and without VAM. The results revealed that VAM application increase the plant height and dry matter of centro legumes. The optimum dosage of Rock Phosphate was 200 kg ha-1 of P2O5.

scholarly journals Effect of Udaipur Rock Phosphate, Single Super Phosphate and Their Combinations on Yield and Total Nutrient Uptake by a Groundnut-Maize Cropping System on the Acid Alfisols of Odisha State, India

2020 ◽  
pp. 53-64
Author(s):  
Debasis Sarangi ◽  
Dinabandhu Jena ◽  
Gour Hari Santra
Keyword(s):  
Rock Phosphate ◽  
Block Design ◽  
Acid Soils ◽  
Cropping System ◽  
Water Soluble ◽  
Low Grade ◽  
Available Nitrogen ◽  
Combined Application ◽  
Randomized Block Design ◽  
Single Super Phosphate

To find out the effect of low grade Udaipur rock phosphate on yield and nutrient dynamic in groundnut- maize cropping system, a field experiment was conducted in a randomized block design with three replications and eight treatments consisting of Udaipur rock phosphate (URP), single super phosphate (SSP) alone or in combinations with different ratios including phosphorus control from 2013-14 to 2015. The soil has a loam texture, a pH of 5.18, low available nitrogen and medium phosphorus and potassium. The highest maize equivalent yield of 6293 kg ha-1 and relative agronomic efficiency (RAE) of 159% was recorded in SSP+ lime (0.2LR) treatment followed by URP+SSP (1:1). Combined application of SSP+ lime recorded higher P, Ca, Mg and S uptake by groundnut-maize cropping system. When the crops received URP+SSP mixture in 1:1 ratio, the RAE values were increased above the standard SSP treatment (T3) being 102% for groundnut, 105% for maize and 103% for groundnut-maize cropping system. The yield in URP+SSP mixture (1:1) was higher than for the SSP treatment, but the difference was not statistically significant (P > 0.05). Thus, combined application of URP+SSP mixture (1:1) can safely be recommended in acid soils for short duration crops like maize and groundnut as against the more costly water soluble SSP fertilizer.

scholarly journals Use of Organomineral at Fertilization of Beans in the Midwest Region of Brazil

2021 ◽  
Author(s):  
Verediana Rosa Almeida ◽  
Gisele Carneiro ◽  
Itamar Rosa Teixeira ◽  
Jonas Vieira ◽  
Wilson Mozena ◽  
...  
Keyword(s):  
Common Bean ◽  
Environmental Sustainability ◽  
Filter Cake ◽  
Block Design ◽  
Winter Season ◽  
Mineral Fertilizers ◽  
Production Cycle ◽  
Soil Fertilization ◽  
Randomized Block Design ◽  
Midwest Region

Abstract This study aimed to evaluate the nutrition and yield of common bean according to the application of different doses of organomineral formulations (OMF), using filter cake as a basic organic compound in the presence and absence of nitrogen. The experiments was implemented and conducted in June "autumn/winter season" and November "rainy season" of the 2018 e 2018/2019 harvest, respectively. A randomized block design was used in a 6 x 2 factorial scheme, with four replications. The treatments were composed of six organomineral formulation doses: (0, 30, 60, 90, 120, and 150 kg ha− 1), with and without the addition of a nitrogen dose of 40 kg ha− 1, using urea as the mineral source. It was concluded that the organomineral fertilizer based on filter cake showed greater absorption of macronutrients N and K, an increase in the 100-grain weight, number of grains per pod, number of pods per plant, and grain yield in comparison with the absence of fertilization or mineral fertilizers, highlighting the doses of 90 and 150 kg ha− 1. The use of OMFs is a viable alternative with great potential for soil fertilization in agricultural production, besides the environmental sustainability generated by their inclusion in the production cycle of common bean.

Effect of Amelioran Material on Soil Chemical Properties of Incubated Peat Planting Media in Polybag

2019 ◽  
Vol 7 (7) ◽  
pp. 1082
Author(s):  
Syahminar Syahminar ◽  
Erwin Masrul Harahap ◽  
Abdul Rauf ◽  
Ali Jamil
Keyword(s):  
Rock Phosphate ◽  
Block Design ◽  
Peat Soil ◽  
Mineral Soil ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Available Phosphorus ◽  
Alkali Cations ◽  
Climate Type ◽  
Randomized Block Design

The aim of this study was to obtain the best combination of types and doses of ameliorant materials: dolomite, rock phosphate, and mineral soil to improve the chemical properties of soil which was incubated for one year in peat media in polybag. The research was conducted in May 2015 - April 2016 in the experimental garden in the village of Sijambi, Tanjungbalai, North Sumatra. Elevation 3 m above sea level, with the C2 (Oldeman) climate type. The experiment was compiled using a Randomized Block Design, with 3 treatments of ameliorant material. The three ameliorant materials were tested for 3 doses. The addition of dolomite treatment: A1=0.45 kg polybag-1; A2=0.90 kg polybag-1; A3=1.35 kg polybag-1. The addition of rock phosphate treatment: A4=0.45 kg polybag-1; A5=0.90 kg polybag-1; A6=1.35 kg of polybag-1. The addition of mineral soil treatment: A7=0.45 kg polybag-1; A8=0.90 kg polybag-1; and A9=1.35 kg polybag-1.The results shown that the highest dose of dolomite (1.35 kg polybag-1) improved soil chemical properties, including soil pH and alkali cations (K, Ca and Mg) on incubated peat soil. Addition of rock phosphate with the highest dose of 1.35 kg polybag-1 (A6) increases available phosphorus and soil CEC. Addition of mineral soil dose of 0.90 kg polybag-1 (A8) increases soil CEC. In the analysis of total soil nitrogen, the highest increase was obtained by adding dolomite dose of 0.45 kg.polibag-1 (A1).

scholarly journals Inorganic fertilizers efficiency with using the liquid organic fertilizer to increase the cabbage yield (Brassica oleracea var. capitata L.)

2021 ◽  
Vol 883 (1) ◽  
pp. 012003
Author(s):  
A E Marpaung ◽  
B Karo ◽  
S Barus
Keyword(s):  
Human Life ◽  
Block Design ◽  
Organic Fertilizer ◽  
Inorganic Fertilizer ◽  
Growth And Yield ◽  
Inorganic Fertilizers ◽  
Local Resources ◽  
Randomized Block Design ◽  
C 50 ◽  
Better Than

Abstract Using organic materials as fertilizer has contributed a lot to protecting the environment and the future of human life through sustainable agriculture. Local resources are used in such a way that synthetic nutrients can be reduced as low as possible. This study aims to determine the effect of liquid organic fertilizer (LOF) on cabbage yield with inorganic fertilizers' efficiency. The research was conducted in Berastagi experimental farm, Karo regency, with the soil type and altitude of 1,340 m asl, which began from July - September 2018. The design used was a randomized block design consisting of 16 treatments with three replication. The treatments tested were: A. Without inorganic fertilizer + LOF 1, B. 25% inorganic fertilizer + LOF 1, C. 50% inorganic fertilizer + LOF 1, D. 75% inorganic fertilizer + LOF 1, E. 100% inorganic fertilizer + LOF 1, F. Without inorganic fertilizer + LOF 2, G. 25% inorganic fertilizer + LOF 2, H. 50% inorganic fertilizer + LOF 2, I. 75% inorganic fertilizer + LOF 2, J. 100% Inorganic Fertilizer + LOF 2, K. Without inorganic fertilizers + LOF 3, L. 25% inorganic Fertilizer + LOF 3, M. 50% inorganic Fertilizer + LOF 3, N. 75% inorganic Fertilizer + LOF 3, O. 100% Inorganic Fertilizer + LOF 3, P. 100% Inorganic Fertilizer + without LOF (Control). The results showed that, in general, the application of liquid organic fertilizer for rabbit urine, fish fertilizer, and fish teillation could stimulate the growth and yield of cabbage better than inorganic fertilizers. Applicationthe liquid organic fertilizer can increase theheight growth of cabbage was 0.67 - 0.88%, plant diameter was 0.33 - 2.56%, crop weight per plant was 5.14 - 5.84%, production per plot was 2.96 – 9.78%, and the crop ratio of 3.36 - 10.84% compared to the use of inorganic fertilizers.

scholarly journals Potensi Pemanfaatan Formulasi Pupuk Organik Sumber Daya Lokal untuk Budidaya Kubis (Potential Use Formulation of Fertilizer Local Natural Resources for Cabbage Plantation)

2019 ◽  
Vol 28 (2) ◽  
pp. 191
Author(s):  
Agustina Erlinda Marpaung ◽  
Bagus Kukuh Udiarto ◽  
Liferdi Lukman ◽  
NFN Hardiyanto
Keyword(s):  
Human Life ◽  
Block Design ◽  
Organic Fertilizer ◽  
High Growth ◽  
Growth And Yield ◽  
Chemical Fertilizers ◽  
Clubroot Disease ◽  
Local Resources ◽  
Randomized Block Design ◽  
Sunn Hemp

<p>Pemupukan organik banyak memberikan kontribusi pada perlindungan lingkungan dan masa depan kehidupan manusia serta menjamin keberlanjutan bagi agroekosistem dan kehidupan petani sebagai pelaku pertanian. Sumber daya lokal dipergunakan sedemikian rupa sehingga unsur hara sintetis, biomassa, dan energi dapat ditekan serendah mungkin serta mampu mencegah pencemaran lingkungan. Penelitian bertujuan mendapatkan formulasi pupuk organik sumber daya lokal untuk budidaya sayuran kubis. Penelitian dilakukan di Kebun Percobaan Berastagi dengan ketinggian tempat 1.340 m dpl. dan jenis tanah Andisol. Penelitian dilaksanakan mulai bulan Agustus sampai November 2015. Rancangan yang digunakan adalah rancangan acak kelompok (RAK) terdiri atas enam perlakuan dengan lima ulangan. Perlakuan yang diuji adalah: (A) POC kirinyuh, (B) kotoran kelinci plus (Kotciplus), (C) POC orok-orok, (D) POC kirinyuh + urin kelinci (1 : 1 v/v), (E) POC orok-orok + urin kelinci (1 : 1 v/v), dan (F) kontrol (pupuk kimia sintetis). Hasil penelitian menunjukkan bahwa pupuk organik Kotciplus dapat memacu pertumbuhan dan hasil kubis lebih baik daripada pupuk kimia sintetis. Penggunaan pupuk organik Kotciplus dapat meningkatkan pertumbuhan tinggi tanaman kubis sebesar 4,42%, lebar daun sebesar 4,78%, diameter krop sebesar 3,26%, bobot krop per tanaman sebesar 7,13%, dan produksi per plot sebesar 2,43% dibanding penggunaan pupuk kimia sintetis. Penggunaan pupuk organik dapat menekan serangan penyakit akar gada sebesar 19,06 – 57,01%, namun meningkatkan serangan hama 12,12 – 27,5% dari kontrol. Implikasi yang diperoleh adalah pupuk organik Kotciplus sangat cocok untuk budidaya kubis.</p><p><strong>Keywords</strong></p><p><em>Brassica oleracea</em> var. capitata L.; Pupuk organik</p><p><strong>Abstract</strong></p><p>Organic fertilization contributes to the protection of the environment and the future of human life. Organic farming also guarantees the sustainability of the agro-ecosystems and the lives of farmers as agricultural factors. Local resources are used in a way that synthetic nutrients, biomass, and energy can be reduced as low as possible and be able to prevent environmental pollution. The aim of the research is to extract local resources of organic fertilizer for the cultivation of vegetable cabbage. The study was conducted in Berastagi Experimental Garden with less altitude of 1,340 m above sea level and type of soil Andisol. The research was conducted from August to November 2015. The design used was a randomized block design, consist of six treatments with five replications. The treatments tested were: (A) LOF (liquid organic fertilizer) kirinyuh, (B) manure rabbit plus (Kotciplus), (C). LOF sunn hemp, (D) LOF kirinyuh + rabbit urine (1: 1 v/v), (E) LOF sunn hemp + rabbit urine (1: 1 v/v) and (F) control (synthetic chemical fertilizers). The results obtained are : Natural Kotciplus fertilizer can stimulate the growth and yield of cabbage were better than synthetic chemical fertilizers. The use of natural Kotciplus fertilizer can increase the high growth 4.42% cabbage, leaf diameter 4.78%, crop diameter 3.26%, the weight of the crop per plant 7.13% and the production per plot 2, 43% compared to the use of chemical synthetic fertilizers. The use of natural fertilizers can suppress the attack of the clubroot disease by 19.06 % to 57.01%, but increased pest attacks 12.12 - 27.5% of controls. The implication is that natural Kotciplus fertilizer is very suitable for cabbage cultivation.</p>

scholarly journals Pengendalian Layu Fusarium Menggunakan Mikrobe Antagonis dan Tanaman Resisten pada Lili

2011 ◽  
Vol 21 (4) ◽  
pp. 338
Author(s):  
Wakiah Nuryani ◽  
Evi Silfia Yusuf ◽  
Hanudin ◽  
Ika Djatnika ◽  
Budi Marwoto
Keyword(s):  
Tap Water ◽  
Human Life ◽  
Block Design ◽  
Economic Value ◽  
Wilt Disease ◽  
Control Measures ◽  
Lower Percentage ◽  
Randomized Block Design ◽  
Trichoderma Sp ◽  
Bulb Rot

Lili merupakan tanaman hias penting dan bernilai ekonomi tinggi. Budidaya lili di Indonesia menghadapi kendala utama yaitu penyakit layu Fusarium. Aplikasi bahan kimia sintetik untuk mengendalikan penyakit ini berdampak negatif terhadap kerusakan lingkungan. Aplikasi organisme antagonis dan kultivar resisten merupakan alternatif pengendalian penyakit ramah lingkungan, berdampak positif terhadap kelestariannya, dan meningkatkan produktivitas lili. Penelitian bertujuan untuk mendapatkan informasi mikrobe antagonis, mikrobe nonpatogenik, dan klon lili yang dapat menekan penyakit  layu Fusarium. Penelitian dilakukan di Laboratorium Biokontrol dan Rumah Sere, Balai Penelitian Tanaman Hias pada bulan Januari sampai dengan Desember 2007. Tata letak percobaan disusun berdasarkan rancangan acak kelompok pola faktorial denga tiga ulangan. Faktor pertama ialah klon lili yang terdiri dari klon No.1, No 2, No.3 (tahan), dan No.4 (rentan). Faktor kedua ialah perlakuan mikrobe antagonis (1) Gliocladium sp. 107 spora/ml, (2). Trichoderma sp. 107 sel/ml, (3) Fusarium a virulen 107 spora/ml dan, (4) kontrol (tanpa mikrobe antagonis). Hasil percobaan menunjukkan bahwa penggunaan mikrobe antagonis Gliocladium sp. dan klon resisten paling efektif mengendalikan penyakit busuk umbi Fusarium pada lili. Hal ini dibuktikan dari persentase tanaman layu pada perlakuan aplikasi mikrobe dan penggunaan tanaman resistant dibandingkan dengan tanpa perlakuan. Penanaman tanaman resisten diikuti dengan aplikasi Gliocladium paling efektif menekan layu Fusarium dibanding perlakuan lainnya.<br /><br /><br /><br />Lilium is one of  the most important and the heigest economic value of cut flower in Indonesia. Cultivation of Lilium faces major constrain, that is wilt disease caused by Fusarium. Application of synthetic chemicals to control the diseases is not recommended, because its impact is dangerous for environment and human life. Therefore other control measures that are move environmentally friendly and more effective/efficient have to applied. The use of antagonistic microbes and resistance varieties are the most promising control measures to be recommended in the field. The study was aimed to find out of antagonist and nonpathogenic microbes and plant resistant that were effective to control Fusarium bulb rot on lili.  The experiment was conducted at Laboratory and Glasshouse of Indonesian Ornamental Crops Research Institute (1,100 m asl.) on January to December 2007. Factorial experiment was arranged in a randomized block design with three replications. The first factor was Lilium clones i.e. No.1, No. 2, No. 3 (resistant), and No. 4 (susceptible clone as control). The second factor was antagonism microbes i.e. (1) Gliocladium sp. 107 spora/ml, (2). 107 Trichoderma sp. cel/ml, (3) Fusarium nonpathogenic 107 spora/ml, and (4) control (tap water without antagonist microbe). The results indicated that the use of Gliocladium sp. and resistant clone of Lilium i.e. clone No.3 was effective to control Fusarium bulb rot of Lilium. This proven from lower percentage of disease occurance on the treatment of antagonistics microbes and resistance varieties compared both to those of without treatment (control). The use of resistance plant followed by application of Gliocladium was known to be most effective to control fusarial wilt disease compared to the other treatment combinations.   <br /><br />

scholarly journals Biofertilizer in leaf and drip applications: an alternative to increase tomato productivity

2020 ◽  
Vol 11 ◽  
pp. e3376
Author(s):  
Roberta Camargos Oliveira ◽  
José Magno Queiroz Luz ◽  
Regina Maria Quintão Lana ◽  
Angelica Araújo Queiroz ◽  
Danielle Lima Bertoldo
Keyword(s):  
Block Design ◽  
Class Ii ◽  
Class I ◽  
Class Iii ◽  
Application Form ◽  
Tomato Production ◽  
Production Chain ◽  
Randomized Block Design ◽  
Small Fruit ◽  
Production Increase

The tomato is a species of undetermined growth and extremely demanding in nutrients Therefore, the search of new ways to maximize the use and supply of fertilizers sources and their application mechanisms are important to improve the tomato culture management. The aim of this study was to evaluate the application methods of liquid biofertilizer (BF) and the harvest times throughout cultivation. The experiment was carried out in a randomized block design, in a 3x6 factorial with subdivided plot and seven replications. The treatments were foliar and drip BF application and a control, without application of BF, and harvesting time (85; 92; 99; 106; 113; 120 days after transplanting-DAT). Leaf application resulted in a class I production increase in the second week of harvest (92 DAT), while drip application reflected higher class II and III production in the fourth week (106 DAT). In all treatments, at 92 DAT higher production of large fruits (class I) was observed. Production of average fruits (class II) occurred at 92 and 113 DAT and small fruit (class III) production was concentrated at 113 DAT. The adoption of BF, regardless of the application form, provides an increase in total productivity, with an income up to 35% higher. Therefore, biofertilizer is a good source for nutrition implementation aiming at yields and returns in the tomato production chain.

scholarly journals Isolation And Test Potential Of Phosphate Solubilization Microorganisms On Andisols Sinabung Eruption Impact On Some Thickness Of Ash In Karo District

1970 ◽  
Vol 5 (3) ◽  
pp. 328-339
Author(s):  
Nofriyanto Pakolo ◽  
Mariani Sembiring ◽  
Abdul Rauf
Keyword(s):  
Soil Acidity ◽  
Rock Phosphate ◽  
Microbial Population ◽  
Phosphate Solubilization ◽  
Nutrient Status ◽  
Organic Soil ◽  
Soil Biology ◽  
Soil Incubation ◽  
Soil P ◽  
Biology Laboratory

Andisol soil erupted ash sinabung has a thickness level, where each thickness has microbial activity and nutrient status of soil who different. This study aims to determine the potential of phosphate solubilization microorganisms on soil erupted ash sinabung. This research was conducted at Soil Biology Laboratory of Faculty of Agriculture USU, which the isolation of microorganisms is fungi and bacteria from the soil erupted Sinabung in some ash thickness to get the isolates to be tested the potential solubility. Isolate tested for their solubility potential in two ways: solid pikovskaya medium with source of phosphate Ca3(PO4)2, AlPO4, FePO4, and RP (Rock Phosphate) and in Andisol soil incubation with microbial dose as much as 1 ml. The result showed that there were 6 isolates of fungi (J1-J6) and 6 bacterial isolates (B1-B6) and the provision of phosphate solubilization microorganisms on Andisol soil has different potential in increasing microbial population, soil respiration, P-total soil, P-available soil, but can decrease C-organic soil with soil acidity degree (pH) and each type of MPF isolate tested will be able to dissolve P-not available to be P-available on solid pikovskaya medium with source of phosphate Ca3(PO4)2, AlPO4, FePO4 and Rock Phosphate but have different capabilities

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