scholarly journals Pengaruh Aplikasi Pupuk Hayati Mikroba Pelarut Fosfat dalam Meningkatkan Kandungan P tanah , Pertumbuhan dan Hasil Jagung pada Ultisols

SoilREns ◽  
2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Betty Natalie Fitriatin ◽  
Aristyo Rahardiyan ◽  
Tien Turmuktini

Marginal soils have problems of low availability of nutrients, especially phosphorus. Phosphate solubilizing microbes can produce organic acid that dissolve P in the soil. Futhermore, the PSM also produce extracellular enzymes asa phosphatase that catalyze mineralization of organic P become inorganic P. Phosphate solubilizing bacteria (Pseudomonas mallei and Pseudomonas cepacea) and phosphate solubilizing fungi (Penicillium sp. and Aspergillus sp) is selected based on the ability of dissolving P and the production of growth regulators. Research at this stage aims to determine the biological fertilizer application techniques (PSB and PSF) as well as different types of P fertilizers to improve soil P available, growth and yield of maize. Field experiment on Ultisol Jatinangor implemented using a randomized block design (RBD) to test how applications PSM plus (giving 1, 2 and 3 applications) as well as the type of fertilizer P (SP-36 and rock phosphate). The results showed that the application of PSM can improve soil P-available growth and yield of maize. Application of PSM biological fertilizer could reduce the need for fertilizer P by 50%. PSM application once the application (early planting) with SP-36 dose 50% can increase content of soil P (P-available), and yield of maize on Ultisols.Keywords : maize, phosphate solubilizing microbes, Ultisols

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.


Author(s):  
I Nyoman Merit ◽  
I Wayan Narka ◽  
Tatiek Kusmawati

Research on the effect of dosage combination of Evagrow bio-fertilizer and chemical fertilizers on soil properties, growth and yield of rice has been carried out in the glasshouse, Faculty of Agriculture, Udayana University using factorial experiment with a Randomized Block Design (RBD). The first factor is Evagrow bio-fertilizer in 3 level, i.e. E0 (without bio-fertilizers), E1 (5 g bio-fertilizer/L) E2 (10 grams bio-fertilizer/L). The second factor is chemical fertilizer, which consists of 3 levels: K0 (without chemical fertilizers), K1 (150 kg Urea/ha + 75 kg SP36/ha + 37.5 kg KCl/ha), K2 (300 kg Urea/ha + 150 kg SP36/ha + 75 kg KCl/ha). The results showed that chemical fertilizers give a significant and very significant effect on most of the rice growth and yield parameters. The application of chemical fertilizers K1 and K2 increased yield of dry grain harvest to 52.87% and 102.54% compared to controls.  Application of Evagrow bio-fertilizer did not significantly increase growth and yield of rice. There is no interaction between chemical fertilizers and Evagrow bio- fertilizer.  Similarly to some of the soil characteristics, biological fertilizer and chemical fertilizer application did not show significant effect on most of the soil characteristics, except on salt levels.Keywords: Evagrow Biofertilizer, Inorganic Fertilizer, Oryza Sativa


Kultivasi ◽  
2019 ◽  
Vol 18 (2) ◽  
Author(s):  
Lia Marliani ◽  
Sumadi Sumadi ◽  
Tati Nurmala

SARIPeningkatan produktivitas tanaman pangan merupakan salah satu upaya dalam mendukung ketahanan pangan seiring dengan bertambahnya jumlah penduduk di Indonesia. Penggunaan pupuk hayati dan nano silika secara mandiri mampu meningkatkan pertumbuhan dan hasil tanaman serta menurunkan tingkat kerebahan tanaman padi. Penelitian ini bertujuan untuk mendapatkan kombinasi dosis pupuk hayati dan nano silika yang tepat sehingga dapat meningkatkan pertumbuhan, hasil, dan ketegaran tanaman padi sawah (Oryza sativa L) varietas IPB 3S. Penelitian ini dilaksanakan di lahan sawah yang berlokasi di Kampung Bojongloa, Desa Tegalsawah, Kecamatan Karawang Timur, Kabupaten Karawang pada bulan Maret sampai dengan bulan Juli 2017. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) faktorial. Perlakuan terdiri dari 2 faktor, yakni aplikasi pupuk hayati yang terdiri dari 3 taraf (h0 = 0 g.plot-1, h1 = 0,8 g.plot-1, dan h2 = 1,6 g.plot-1) dan perlakuan aplikasi pupuk silika yang juga terdiri dari 3 taraf (s0 = 0 mL.plot-1, s1 = 2 mL.plot-1, dan s2 = 4 mL.plot-1) dengan jumlah kombinasi perlakuan sebanyak 9 dan masing – masing diulang 3 kali. Hasil penelitian menunjukkan terdapat pengaruh interaksi pada parameter pertumbuhan dan hasil varietas IPB 3S. Pemberian pupuk hayati dan silika dengan dosis 1,6 g.plot-1 dan 4 mL.plot-1 merupakan kombinasi terbaik terhadap parameter tinggi tanaman, jumlah anakan, bobot 1000 butir gabah isi, dan tingkat sudut kerebahan. Keyword :Padi varietas IPB 3S, Pupuk hayati, Nano Silika, Kerebahan ABSTRACTIncreasing the productivity of food crops is one of the efforts to support food security along with the increasing population in Indonesia. The use of biofertilizer and nano silica with each application had could increase growth and yield also todecrease the level of fall down of rice plant. This study aimed to obtain the appropriate dosagecombination of biofertilizers and nano silica so as to increase the growth, yield and straighten of rice (Oriza sativa L) variety IPB 3S. The experiment was conducted in paddy fields located in Bojongloa, Tegalsawah village, East Karawang District, Karawang City from March to July 2017. The experimental design was used factorial Randomized Block Design (RBD). The treatment consisted of 2 factors, namely the application of biological fertilizer consisting of 3 levels (h0 = 0 g.plot-1, h1 = 0.8 g.plot-1, h2 = 1.6 g.plot-1) and the application of silica fertilizer application consists of 3 levels (s0 = 0 mL.plot-1, s1 = 2 mL.plot-1, s2 = 4 mL.plot-1) with 9 treatment combinations and repeated 3 times. The results showed that the application of biofertilizers and silica significantly affected the component parameters of growth, yield, and degree of angularity of IPB 3S varieties. The interaction between biofertilizers and silica at a dosage of 1.6 g. plot-1 and 4 mL.plot-1 was the best treatment on parameters of plant height, number of tillers, weight of 1000 grains of filled grain, and level of angle of lodging. Keyword : IPB 3S rice variety, biofertilizer, nano silica fertilizer


2020 ◽  
Vol 2 (02) ◽  
pp. 74-81
Author(s):  
Fiqriah Hanum Khumairah ◽  
Anggi Jingga ◽  
Betty Natalie Fitriatin ◽  
Tualar Simarmata

Maize (Zea mays L.) is an important food crop in Indonesia as a source of carbohydrates. The extent of land conversion reduces maize productivity. The experiment aimed to increase the growth and yield of maize in Ultisol which was carried out in the experimental garden of the West Java Horticultural and Various Seed Plant Development Center from October 2017 to March 2018. The Phosphate Solubilizing Bacteria (PSB) and organic ameliorant application test used the factorial randomized block design (RBD) method consisted of two factors. The first factor is PSB and organic ameliorant which consisted of four levels, namely b0 (without the provision of PSB and organic ameliorant), b1 (BP 107 cfu mL-1), b2 (organic ameliorant 5 tons ha-1), and b3 (PSB 107 cfu mL-1 + organic ameliorant 5 tons ha-1) and the second factor is the dosage of SP-36 fertilizer consisted of five levels, namely po (without SP-36 fertilizer), p1 (100% SP-36 fertilizer), p2 (90% SP-36 fertilizer, P3 (80% SP-36 fertilizer), and P4 (70% SP-36 fertilizer). The results showed that the application of PSB (Enterobacter ludwigii + Bulkholderia vietnamiensis + Citrobacter amalonaticus) 107 cfu mL-1 and organic ameliorant dosage of 5 tons ha-1 was able to increase plant height at age 6 Week After Planting (WAP), weight of cob with and without cornhusk, and weight of 100 seeds in the framework of increasing the growth and yield of maize on Ultisols and reduce the use of inorganic P fertilizer to 90%.


2020 ◽  
Vol 5 (1) ◽  
pp. 300-304
Author(s):  
Betty Natalie Fitriatin ◽  
Dita Fauziah ◽  
Fabira Nur Fitriani ◽  
Dewi Nurma Ningtyas ◽  
Pujawati Suryatmana ◽  
...  

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.


Author(s):  
V. R. Jinjala ◽  
H. M. Virdia ◽  
N. N. Saravaiya ◽  
A. D. Raj

A field experiment was conducted during rabi season of 2011-12 on heavy black soil to study the effect of integrated nutrient management on growth and yield of baby corn. The treatments comprising all possible combinations of five levels of nitrogen (chemical and vermicompost fertilizer) with and without bio-fertilizer (Azotobacter and PSB) were laid out in randomized block design with three replications. These were significantly higher with application of 100% RDN from chemical fertilizer with bio-fertilizer over 100% RDN from vermicompost. The cob and fodder yields significantly differed with different integrated nutrient management treatment. Significantly the higher growth and yield attributes yield and fodder yield were recorded with the application of 100% RDF from chemical fertilizer with bio-fertilizer. Application of 100% RDN from chemical fertilizer with biofertilizer was recorded higher net returns over 100% RDN from vermicompost (Rs. 220775/ha) and BCR (12.54).


AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 79-89
Author(s):  
Josina Irene Brigetha Hutubessy

This research aims at investigating the effect of some organic fertilizers on the growth and yield of green onion plants. The kind of organic fertilizers which can give optimum growth and yield of green onion plants is Bokashi fertilizer. The design used in this experiment is Randomized Block Design (RBD). The treatment used is P0 = without fertilizer or 0 kg swath?1, P1= chicken manure 15 tons ha?1 or 2.4 kg swath?1, P2= cow manure 15 tons ha?1 or 2.4 kg swath?1, P3= vermicompost fertilizer 15 tons ha?1 or 2.4 kg swath -1, P4= bokashi fertilizer 15 tons ha?1 or 2.4 kg swath?1. The observed variables are the height of the plants, the number of leaves, the leaf width, the number of seedlings, fresh residue tan?1, the weight of fresh clump leaves tan?1, the weight of fresh clump leaves ha?1, the number of clump stem?1, and the weight of clump stem?1. Bokashi fertilizer application gives a very real effect to the variable of plants height growth with a total of 37.91%, the number of leaves amounted to 34.81%, the leaves width amounted to 51.35%, the number of seedlings amounted to 48.47%, the fresh residue tan?1 amounted to 44.81%, the weight of fresh clump leaves tan?1 amounted to 19.27%, the weight of fresh clump leaves ha?1 amounted to 50.84%, the number of clump stem?1 amounted to 39.60.%, and the weight of clump stem?1 amounted to 51.98%. Kind of organic fertilizers which can provide the optimum growth and yield of green onion plants is Bokashi fertilizer 15 tons ha?1.


2019 ◽  
Vol 8 (2) ◽  
pp. 173-180
Author(s):  
Jumakir Jumakir ◽  
Endrizal Endrizal

Jumakir J, Endrizal E. 2019. Response of biological fertilizer addition to growth and results of rice field. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):173-180. The research objectives were to determine the effect or response of the addition of biological fertilizers to the growth and yield of rice, to determine the most effective type of biological fertilizer. This study was conducted in irrigated rice field of Sri Agung Village, Batang Asam sub District, West Tanjung Jabung District, Jambi Province in dry season 2016. The design was Randomized Block Design (RBD) with six treatments and three replications with 5 mx 10 m plot area, implemented in a farmer area of 1200 m2. The results of the analysis based on the analysis of variance showed significant and unreal differences in growth and yield of rice. The addition of biological fertilizer provided higher growth and yields than without biological fertilizer. Provibio biofertilizer is the most effective biofertilizer that can provide the highest rice yield and the use of biofertilizer can save 50% recommended NPK fertilizer.


Agric ◽  
2020 ◽  
Vol 32 (2) ◽  
pp. 129-138
Author(s):  
A. Marthin Kalay ◽  
Reginawanti Hindersah ◽  
Irene A. Ngabalin ◽  
Marina Jamlean

Growth and production of corn plants require land with sufficient nutrients. Utilization of biological fertilizers and organic materials carried out with the aim of increasing the yield of corn. The treatments that were tried were the provision of compost, livestock manure, compost and livestock manure, each of which was added by spraying a consortium of biological fertilizer. The experiment was designed using a randomized block design with five replications. The results showed that the application of organic-based fertilizers affected plant height from 17 - 49 days after planting, weight of fruit with kelobot, weight of cob and ear length. Provision of compost or livestock manure and added with a biological fertilizer consortium by spray gives a higher effect compared to the provision of compost or livestock manure which is not added to the consortium of biological fertilizer. To increase the productivity of maize plants it is recommended to use a consortium of biological fertilizers applied by spraying at intervals of seven days until the plants are 49 days after planting.


2020 ◽  
Vol 73 (2) ◽  
Author(s):  
Etty Safriyani ◽  
Mery Hasmeda ◽  
Munandar Munandar ◽  
Firdauas Sulaiman ◽  
Holidi Holidi

The application of integrated agriculture is an effort to reduce dependence up on agrochemicals and increase the absorption of nutrients, especially nitrogen, to increase plant growth and production. <em>Azolla </em>is an algae that can provide nitrogen for rice, while ducks can increase the availability of N, P, and K, as well as the efficiency of nitrogen use. This research aimed to evaluate the role of ducks and <em>Azolla </em>in increasing the growth and production of rice plants. This research was conducted from October 2018 to February 2019 using an experimental method with a nonfactorial randomized block design. The combinations of nitrogen fertilizers, <em>Azolla</em>, and ducks (K) were as follows: K1 = 115 kg N ha<sup>−1</sup>, without ducks, without <em>Azolla</em>; K2 = 86 kg N ha<sup>−1</sup>, without ducks, 1,000 kg <em>Azolla </em>ha<sup>−1</sup>; K3 = 86 kg N ha<sup>−1</sup>, 3,000 ducks ha<sup>−1</sup>, 1,000 kg <em>Azolla </em>ha<sup>−1</sup>; K4 = 58 kg N ha<sup>−1</sup>, 3,000 ducks ha<sup>−1</sup>, 1,000 kg <em>Azolla </em>ha<sup>−1</sup>; K5 = 29 kg N ha<sup>−1</sup>, 3,000 ducks ha<sup>−1</sup>, 1,000 kg <em>Azolla </em>ha<sup>−1</sup>; and K6 = without N fertilizer, 3,000 ducks ha<sup>−1</sup>, 1,000 kg <em>Azolla </em>ha<sup>−1</sup>. The results showed that the application of 58 kg N ha<sup>−1</sup>, 3,000 ducks ha<sup>−1</sup>, and 1,000 kg <em>Azolla </em>ha<sup>−1</sup> (K4) was able to decrease the N fertilizer application by 50% and increase the rice growth and yield by 12.17% and 20.32%, respectively. Therefore, the integrated application of rice–duck–<em>Azolla </em>would support sustainable agriculture.


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