scholarly journals Uji Isolat Bakteri Azotobacter Asal Kebun Lidah Buaya dengan Pupuk Urea terhadap Serapan Nitrogen pada Tanaman Kedelai (Glycine Max L.) di Tanah Gambut

2021 ◽  
Vol 2 ◽  
pp. 131-138
Author(s):  
Nandung Erlanda ◽  
Feira B. Arief ◽  
Ismahan Umran ◽  
Sutarman Gafur ◽  
Denah Suswati

Azotobacter nitrogen-fixing bacteria and urea fertilizer to reduce excessive use of chemical fertilizers. These bacteria can play a role in increasing nitrogen uptake and further growth of soybean plants. This study aimed to obtain growth media for Azotobacter and increase plant and root growth and nitrogen uptake of Biosoy soybean varieties. The research was conducted to help the uptake of n in the soil and reduce the excessive use of chemical fertilizers. The first experiment was carried out by growing bacteria on the media for 120 hours. The second experiment was designed in a completely randomized design that tested two treatments with additional use of urea fertilizer and Azotobacter and no Azotobacter. The results showed that there was no effect of giving Azotobacter from aloe vera gardens, and urea fertilizer showed a significant effect on the observed variables of soil pH in soybean plants on peat soil. In contrast, the variables observed were population, plant height, N content, N-total, plant dry weight, dry weight of plant roots, and N span of soybean plants had no significant effect.

2017 ◽  
Vol 45 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Reginawanti Hindersah ◽  
Neni Rostini ◽  
Arief Harsono ◽  
Dan Nuryani

Nitrogen-fixing Azotobacter is widely used as biofertilizer in sustainable agriculture. The bacteria produce exopolysaccharide which might have a significant role in enhancing soybean nitrogen uptake and growth. The objective of this research was to obtain growth media of Exopolysaccharide–producing Azotobacter; and increase shoot and root growth as well as nitrogen uptake of soybean var. Anjasmoro at early vegetative phase following inoculation of Azotobacter chroococcum liquid. Research consist of two phase, 1) determination of organic-based media for A. chroococcum liquid inoculant production, and 2) pot experiment for application of liquid inoculant on soybean.  The first experiment was performed  in a series of  batch fermenter consisted of several organic media for 72 hours.  The second experiment was set in completely randomized design consisted of three density of liquid inoculant. The results verified that the best media which induced exopolysachharide production of A. chroococcum was 1% molase enriched with 0.1% NH4Cl. Liquid inoculant clearly enhanced population of Azotobacter in soybean rhizosphere, plant height, roots dry weight and N uptake of 21 day old soybean. This research implied that A. chroococcum might be used as biofertilizer at early growth of soybean. Keywords: Azotobacter chroococcum, biofertilizer, liquid inoculat


2018 ◽  
Vol 8 (3) ◽  
pp. 154-159
Author(s):  
Hariadi Saputra ◽  
Yadi Setiadi ◽  
Iwan Hilwan

Nursery is a process in producing good quality seedlings. Seedling quality is determined by physical-physiological quality including woody stem, health, height, diameter, number of leaves, leaf color and compactness of media. The quality of angsana seedlings in this study was observed using some growth media, lateral root cutting, and cow’s urine addition with various concentration and liquid organic fertilizer for 13 weeks. The study was conducted in a completely randomized design (CRD) in split plot with 3 growth mediums, 10 combinations of root-cutting and fertilizing treatment using 9 seedlings per treatment. Parameters observed during this study were seedling height (cm), seedling diameter (mm), total dry weight (g), shoot - root ratio (RPA) and compactness of roots. The results showed the media contain mixture of soil and manure (M2) with root-cutting treatment, addition of 20% cow urine and 5% EM4 (A2) was the best treatment for angsana seedlings with average value of 46.25 cm plant height, 6.09 mm diameter, 7.77 g total dry weight, shoot root ratio 1.89 and compactness of roots including the compact category.Key word : cow’s urine, lateral roots cutting, Pterocarpus indicus Willd., seedling quality.


2014 ◽  
Vol 2 (2) ◽  
pp. 61
Author(s):  
Sudarsono Efendi Sofyan ◽  
Melya Riniarti ◽  
Duryat .

Rain Tree (Samanea saman) has ability to absorb the carbon dioxide from the air. Due to  it’s advantages, there was a need to know the propagation way. Using organic materials such as tea waste, rice husk and husk charcoal as a growing medium  diggested could increase the seedling growth. This study aims to: (1) determined the effect of  tea waste, rice husk and husk charcoal as a growth media for rain tree seedling (2) determined the best composition of the media among soil mixture with tea waste, soil with mixture rice husk and soil with mixture husk charcoal. The research was conducted from September 2012 to December 2012, in the greenhouse, Faculty of  Agriculture, University of Lampung. The study was designed in completely randomized design (CRD) used 7 treatment with 5 replications, each consisted of 5 sample. Treatment consists of: 100% soil, soil + tea waste (75% + 25%), soil + tea waste (50% + 50%), soil + rice husk (75% + 25%), soil + rice husk (50% + 50%), soil + husk charcoal (75% + 25%), soil + husk charcoal (50% + 50%). Provision of tea waste, rice husk and husk charcoal was gave effect on canopy dry weight, stem dry weight, roor length, seed quality index  and did not give affect on height and diameter of seedling, the appropriate composite media for each type of mixture was a composite soil + tea waste (75% + 25%), soil + rice husk (50% + 50%), of the soil + husk charcoal (75% + 25%).


2021 ◽  
Vol 7 (1) ◽  
pp. 17-24
Author(s):  
Wita Purnama Sari ◽  
Dewi Erika Adriani ◽  
Chatimatun Nisa

Edamame is a type of soybean that is consumed in an immature period. High demand for market exports especially to Japan, must be balanced by maximizing production with the use of marginal lands. One of marginal lands is peatland which might be used as growth media for edamame with Urea and Rhizobium biofertilizer application to support its growth. The recent study aimed at analyzing the combination of Urea and Rhizobium biofertilizer on the growth of edamame on peat soil media. The experiment was laid out in. Completely Randomized Design (CDR) with two factors. First factor was Urea dosage: p1 = 50 kg ha-1, p2 = 150 kg ha-1, p3 = 100 kg ha-1, p4 = 200 kg ha-1. The second factor was Rhizobium biofertilizer treatment: r0 = without Rhizobium biofertilizer and r1 = Rhizobium biofertilizer 8g kg-1 edamame seeds. All combination was repeated 3 times with 3 polybags of them, so that there were 72 plants in total. The results showed that there was a response between application of Urea and Rhizobium biofertilizer have a significant effect on the observed parameters, that is plant height (cm), number of trifoliate leaves (straind), shoot dry weight (g) and root dry weight (g). The result showed that the application of Urea 50 kg ha-1 with Rhizobium biofertilizer increased plant growth of edamame on peat soil.   Keywords: Biofertilizer, Edamame soybean, Fresh vegetable, Wetland


2019 ◽  
Vol 4 (1) ◽  
pp. 33
Author(s):  
Okti Purwaningsih ◽  
C. Tri Kusumastuti ◽  
Y. Sulistyo Nugroho ◽  
Casper Yoda Morib

The natural resources of the coastal area in Indonesia have the potential to be developed as an agricultural land with the support of both cultivation technology and land processing,  which one of them was done by using Rhizobium japonicum bacteria to meet the need of nitrogen in the soybean plants. This study aimed to determine the characteristics of nitrogen fixation in various soybean cultivars planted in the coastal area. The research was conducted in Mancingan, Parangtritis, Kretek, Bantul, DIY. The study was designed in Completely Randomized Design which consisted of two factors and was repeated three times. Factor I was Rhizobium japonicum inoculation (with inoculation and without inoculation); factor II was 10 various cultivars of soybean (Grobogan, Burangrang, Argomulyo, Anjasmara, Dena 1, Gema, Kaba, Wilis, Sinabung, Gepak Kuning). The results showed that the inoculation of Rhizobium japonicum in soybean cultivars in a coastal area could increase the number of root nodule, dry weight of root nodule, dry seed weight per plant, and harvest index. Burangrang cultivar planted in the coastal area was the most responsive to Rhizobium japonicum inoculation among other soybean cultivars tested.


2019 ◽  
Vol 5 (2) ◽  
pp. 41
Author(s):  
Yetti Elidar

The research objective was to determine the effect of water and the volume of urea fertilizer and the interaction of both the oil palm plant roots in the nursery early (pre nursery). This research was conducted in the Nursery Faculty of Agriculture, University of Mulawarman, Samarinda from February to May 2014. The study using completely randomized design (CRD) factorial 3 x 4 with three replications. The first factor is the volume of water (A) in the planting medium consists of three levels, namely: a1 = 100 cc of water plants-1; a2 = 200 cc of water plants-1; a3 = 300 cc water plant-1. The second factor is the provision of urea fertilizer (P), which consists of four levels, namely: p0 = without fertilizer urea; p1 = urea 1 g L-1 water to 100 seedlings; p2 = urea 2 g L-1 water to 100 seedlings; PP3 = urea 3 g L-1 water to 100 seedlings. Number of treatment were 12 and each treatment was repeated three times and each replication consisted of three plants so the total number is 108 plants. Data were statistically analyzed and tested further by testing the smallest Significant Difference (LSD) at 5% level. The results showed that the water volume of 200 cc of plant-1 (p2) provides the highest root dry weight average of 254.13 g. While the interaction between the water volume of 200 cc of plant-1 and dose of urea 3 g L-1 water (a2p3) provides the highest root dry weight average of 300,00 g.


2014 ◽  
Vol 16 (1) ◽  
pp. 19
Author(s):  
Samanhudi Samanhudi ◽  
Dwi Hardjoko ◽  
Riandy Adhitya

<p>Wood fiber waste of arenga produced from starch palm industry. It is not handled properly so that could be potentially cause problems for the surrounding community. Wood fiber waste of arenga is potentially used as a medium for hydroponics. The waste can be utilized to get a new composition of hydroponic media. This study aims to determine the effect of a mixture of sand with arenga fiber waste. This research was carried out by using a mixture of sand and arenga wood fiber waste as a medium. This is an experimental study using a completely randomized design. This study aims to determine the effect of a mixture of sand and arenga fiber waste for kailan growth. The results showed that the mixture of sand and arenga wood fiber waste has no effect on kailan growth. The combination of mixtures of sand and arenga fiber waste showed no interaction. Observations on plants such as plant height, number of leaves, leaf greenness levels, the fresh weight of crop stover and stover dry weight of the plant, showed a row of the highest results in the media mix washed sand, washed sand and rice husk</p>


Agrin ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 39
Author(s):  
Bhaskara Anggarda Gathot Subrata ◽  
Stefany Darsan

Penelitian bertujuan untuk mengetahui efektivitas pemberian hara mikro melalui akar dan daun. Penelitiandilaksanakan dengan menggunakan Rancangan Acak Lengkap (RAL) faktor tunggal. Perlakuan berupa kontrol,pupuk mikro lewat media, pupuk mikro lewat daun. Masing-masing perlakuan diulang 6 kali. Media tanam berupapasir yang sudah dimasukan ke dalam bak penanaman, setelah itu tanam benih kangkung dengan jarak 10x10 cmpada setiap bak. Lalu aplikasikan pupuk melalui media atau daun seminggu sekali. Pengamatan yang dilakukanmeliputi tinggi tanaman dan kehijauan daun dengan SPAD 502 untuk tiap minggunya; aktivitas nitrate reduktase,kandungan klorofil a, klorofil b, dan klorofil total, bobot kering batang, bobot kering tajuk, bobot kering daun,bobot kering akar, luas daun (LD), serta analisis pertumbuhan tanaman, meliputi nisbah laju daun (NLD), luasdaun khas (LDK), bobot daun khas (BDK). Berdasarkan penelitian yang telah dilakukan, pemberian pupuk cairmelalui media maupun daun belum mampu meningkatkan pertumbuhan dan hasil tanaman kangkung. Perlakuanpada daun cenderung menunjukan hasil yang lebih tinggi dibandingkan perlakuan pada media pada semuaparameter pengamatan.Kata kunci: efektivitas, hara mikro, akar dan daunABSTRACTThe aim of this research is to know the effectiveness of micro nutrient giving through root and leaf. Theresearch was conducted by using Completely Randomized Design (CRD) of single factor. Treatment of control,micro-fertilizer through the media, micro-fertilizer through the leaves. Each treatment was repeated 6 times.Planting media in the form of sand that has been inserted into the tub of planting, after that plant the seeds ofkangkung with a distance of 10x10 cm in each tub. Then apply the fertilizer through the media or leaves once aweek. Observations included plant height and greenery of leaves with SPAD 502 for each week; nitrate reductaseactivity, chlorophyll a, chlorophyll b, and total chlorophyll, dry weight of stalk, dry weight of canopy, leaf dryweight, root dry weight, leaf area, and plant growth analysis, including leaf rate ratio, typical leaf area, typicalleaf weight. Based on the research that has been done, the application of liquid fertilizer through the media andleaves has not been to increase the growth and yield of kangkung. Treatment on the leaves tend to show higherresults than treatment on media at all observation parameter.Keywords: effectiveness, micro nutrients, roots and leaves


2015 ◽  
Vol 2 (1) ◽  
pp. 54-65
Author(s):  
Nurul Hidayati ◽  
Asro Laelani Indrayanti

The purpose of this research is gaining influence boiler ash on growth and yield of tomatoes, (4) obtain optimal dosing of boiler ash is curuently applied to some media. This research was conducted at Jl. Manjuhan Palangkaraya. The time of this study will last for 4 months This study uses a completely randomized design factorial 2 factors. The first factor is the dose Abu boiler with a 5 stage treotment (without ash, 5 ton.ha-1, l0 ton ha-1, 15 ton.ha-1 and 20 ton.ha-1 . The second factor is the type of media with 3 levels of treatment (Soil sand, soil Podsolid and Peat. The treatment combinotion obtained as-mony as 15 combinations of treatment, with a repeat 3 times. The survey results reveoled that (1) the interaction of growth media and boiler ash dose showed significantly different results against 2,4 dan 6-wieks after planting variables plant height, amount of leaves on the age, 2, 4 and 6 weeks after, plantig, stem diameter at 4 weeks afier planting, and shoot dry weight lastest research. Treatment combination boiler ash 15 ton / ha and peat media (treatment b4t3) provide significant variahles plant height, leaf amount, diameter of stock, and shoot dry weight.


Rekayasa ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 164-171
Author(s):  
Suhartono Suhartono ◽  
Diana Nurus Sholehah ◽  
Rohmad Suci Murdianto

Tanaman sambiloto (Andrographis paniculata Nees.) merupakan salah satu tanaman obat unggulan Indonesia selain temulawak, mengkudu, pegagan, lidah buaya, lada, dan kunyit. Peningkatan produktivitas sambiloto dapat dilakukan dengan perbaikan teknik budidaya melalui sistem pemupukan.  Kajian aplikasi pupuk guano terhadap pertumbuhan, produksi dan kandungan andgrographolida pada tanaman sambiloto terbatas, sehingga perlu dilakukan untuk mengetahui pengaruh pupuk guano terhadap pertumbuhan dan kandungan andrographolida pada tanaman sambiloto. Penelitian ini dilaksanakan di kebun percobaan Program Studi Agroteknologi Fakultas Pertanian Universitas Trunojoyo Madura pada bulan Januari - April 2016. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial dengan perlakuan 6 taraf dosis pupuk guano dengan 4 ulangan. Perlakuan dosis pupuk guano per hektar meliputi G0 (control/tanpa pupuk guano), G1 (5 ton), G2 (7.5 ton), G3 (10 ton), G4 (12.5 ton), dan G5 (15 ton). Pada setiap percobaan terdapat 6 tanaman dengan rincian 3 tanaman sebagai sampel. Hasil penelitian menunjukan bahwa pemupukan guano pada dosis 15 ton/ha (G5) memberikan hasil terbaik untuk parameter tinggi tanaman, jumlah daun, luas daun, berat basah total dan berat kering total tanaman. Kandungan andrographolida (%) tertinggi diperoleh pada dosis pupuk guano 7.5 ton/ha (G2), sedangkan produksi andrograpolida (mg) tertinggi ditunjukkan oleh perlakuan G4 (dosis pupuk guano 12.5 ton/ha).Response of Growth and Production of Srographic Andrographolida Plants (Andrographis paniculata Nees) Due to Differences in Guano Fertilizer Doses Bitter plant (Andrographis paniculata Nees.) including one featured Indonesian medicinal plants in addition to ginger, noni, gotu kola, aloe vera, pepper, and turmeric. Increased productivity is bitter to do with the improvement of farming techniques through a system of fertilization. Study of guano fertilizer application on the growth, production, and content andrographolide the bitter plant is limited, so it is necessary to know the effect of guano fertilizer on the growth and content of the plant andrographolide bitter. This research was conducted at the experiment station Agrotechnology, Faculty of Agriculture, University Trunojoyo Madura at January-April 2016 by using a completely randomized design (RAL) non-factorial with 4 replications consisting of G0 (control/without guano fertilizer), G1 ( fertilizer guano 5 tons/ha) G2 (7.5 tons/ha), G3 (10 tons/ha), G4 (12.5 tons/ha) and G5 (15 tons/ha) on each trial there are 6 plants with details of 3 plants in the sample. The results showed that the guano fertilizer at a dose of 15 tons/ha (G5) can be increased plant height, leaf number, leaf area, total wet weight, and total dry weight. The highest content of andrographolide obtained at doses of 7.5 tons/ha (G2) of guano fertilizer, while the highest yield of andrographolide obtained at doses 12.5 tons/ha of guano fertilizer (G4).


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