Application Of Biological Fertilizers Research Articles

Multiple omics revealed the growth-promoting mechanism of Bacillus velezensis strains on ramie.

Beneficial bacteria that promote plant growth can shield plants from negative effects. Yet, the specific biological processes that drive the relationships between soil microbes and plant metabolism are still not fully understood. To investigate this further, we utilized a combination of microbiology and non-targeted metabolomics techniques to analyze the impact of plant growth-promoting bacteria on both the soil microbial communities and the metabolic functions within ramie (Boehmeria nivea) tissues. The findings indicated that the yield and traits of ramie plants are enhanced after treatment with Bacillus velezensis (B. velezensis). These B. velezensis strains exhibit a range of plant growth-promoting properties, including phosphate solubilization and ammonia production. Furthermore, strain YS1 also demonstrates characteristics of IAA production. The presence of B. velezensis resulted in a decrease in soil bacteria diversity, resulting in significant changes in the overall structure and composition of soil bacteria communities. Metabolomics showed that B. velezensis significantly altered the ramie metabolite spectrum, and the differential metabolites were notably enriched (P < 0.05) in five main metabolic pathways: lipid metabolism, nucleotide metabolism, amino acid metabolism, plant secondary metabolites biosynthesis, and plant hormones biosynthesis. Seven common differential metabolites were identified. Correlation analysis showed that the microorganisms were closely related to metabolite accumulation and yield index. In the B. velezensis YS1 and B. velezensis Y4-6-1 treatment groups, the relative abundances of BIrii41 and Bauldia were significantly positively correlated with sphingosine, 9,10,13-TriHOME, fresh weight, and root weight, indicating that these microorganisms regulate the formation of various metabolites, promoting the growth and development of ramie. Conclusively, B. velezensis (particularly YS1) played an important role in regulating soil microbial structure and promoting plant metabolism, growth, and development. The application of the four types of bacteria in promoting ramie growth provides a good basis for future application of biological fertilizers and bio-accelerators.

The Growth and Production of Maize (Zea mays L.) at Various Distance Planting and Biofertilization.

Farmers habits in cultivating corn plants, including excessive use of chemical fertilizers and pesticides, causing environmental pollution and decreasing soil quality, both chemical, physical, and biological, which results in low production, therefore some efforts are needed to remain productive, namely by using biological fertilizers to improve soil improvement and improve spacing. This study aims to determine the growth and production of maize at various distance planting and to apply biofertilization. The research was conducted in Sei Beras Sekata Village, Deli Serdang in December 2019 to March 2020. The research used factorial randomized block design, the first factor was various of distance planting 70 cm x 10 cm, 70 cm x 15 cm, 70 cm x 20 cm, and the second factor was biological fertilizer consisting of 0 g/ha, 400 g/ha, 800 g/ha, 1200 g/ha. The observed parameters were plant height, leaf area, stem diameter, dry seed weight per plant, dry seed weight per plot, cob length, ear diameter, number of seeds per cob and root dry weight. The results showed that planting distances 70 cm x 20 cm significantly affected the stem diameter, length of cob, ear diameter, number of seeds per cob, weight of dried seeds per plant, and weight of dried seeds per plot. Biological fertilizer has a significant effect on the diameter of the cob. There was no interaction between the distance of planting corn and the application of biological fertilizer to the growth and production of corn.

The Effect of VP3 Biofertilizer and Compost Application on Red Spinach (Amaranthus dubius) and Green Spinach (Amaranthus viridis) Yield and Quality

VP3 biofertilizer is a biological agent that has been formulated in previous research. It was applied once with compost and has been tested on red spinach and green spinach in the greenhouse to see its effect on yield and quality (chlorophyll content, anthocyanins, and shelf life at room temperature). Red spinach and green spinach had shown a significantly different growth response to applying biological fertilizers. VP3 biofertilizer with compost had the highest yield effect but was not significantly different from the recommended Nitrogen Phosphate Potassium (NPK) and Effective Microorganism4(EM4) treatment with compost. The application of VP3 Biofertilizer with NPK fertilizer showed a darker color (higher chlorophyll and anthocyanin content) than the application of biological fertilizers, but the values ​​were not significantly different. The application of VP3 biofertilizer with compost affected the shelf life of both red spinach and green spinach. Spinach plants remained fresh at room temperature for three days of storage, while the other treatments lost freshness on the 3rd day after harvesting and even loosened the leaf on the 4th day after harvesting. Therefore, VP3 biofertilizer has potential to increase the yield and quality of spinach and other vegetable crops. The addition of the application period of VP3 biofertilizer needs to be carried out and observed to increase the yield and quality of plants further. Canonical Variate Analyses (CVA) can distinguish the grouping of treatments based on the selected parameter. Biplot assessment provides information on the strong relationship between the yield of green spinach and red spinach and a number of leaves, leaf area, and plant height. The application of VP3 biofertilizer with compost had a significant effect on the yield and quality and produced different effects between treatments, both in the case of green spinach and red spinach.

The effect of ascorbic acid and bio fertilizers on basil under drought stress.

Evaluate the effect of ascorbic acid application and coexistence of Mycorrhiza fungus and Azospirillium on basil (Ocimum basilicum L.) under drought stress. This experiment was performed as a split factorial in a randomized complete block design with three replications in the crop year 2017-2018 in Shahriar, Iran. In this experiment, irrigation was the main factor in three levels, including drought stress based on 40-70-100 mm from the evaporation pan of class A. Biofertilizer including growth-promoting bacteria (Azospirillium) and mycorrhiza fungus in four levels, including a(Non-consumption) B (Seeds of growth-promoting bacteria (Azospirillium)) C (Consumption of mycorrhiza fungus as seeds) D (Concomitant use of growth-promoting bacteria Azospirillium with mycorrhiza fungi as seeds) and ascorbic acid in two levels of foliar application, including A (Absence Application of ascorbic acid) and B (Application of ascorbic acid (two days after irrigation treatment)) was considered as a factorial factor. The results showed that the highest biological yield was obtained in drought stress of 40 mm and application of biological fertilizers in the form of mycorrhiza application with an average of 3307.1 kg/ha, which was about 70% more than 100 mm evaporation stress and no application of biological fertilizer. The use of ascorbic acid under drought stress conditions improved by 10%, the essential oil using ascorbic acid evaporated under drought stress conditions of 100 mm. As a general conclusion, the use of ascorbic acid and Mycorrhiza + Azospirillium biological fertilizer improved the quantitative and qualitative characteristics of basil under drought stress.

Dynamic of Phenolic Compounds in Guadua angustifolia Kunth under Chemical, Organic, and Biological Fertilization

Guadua angustifolia produces phenolic compounds, and this production may be influenced by the application of chemical, organic, and biological fertilizers. Currently, the effect of such fertilizers on the synthesis dynamics of this group of metabolites in bamboo is unknown. In this study, the total phenolic content (TPC) and total flavonoid content (TFC) in the leaves of plants fertilized with diammonium phosphate (DAP) and humus in combination with the biofertilizers Promofort®, Azospirillum brasilense, Pseudomonas fluorescens, and Stenotrophomonas sp. were determined using colorimetric techniques across three sampling events (four, five, and seven months after planting). Additionally, an approximation of the bacterial profile of G. angustifolia roots was performed using the DGGE-PCR fingerprint technique. Through repeated measures ANOVA (rmANOVA), it was determined that there is no statistically significant three-way interaction between humus or DAP application, biological fertilizers, and time for either TPC or TFC. However, there were interactions between the sampling event and the application of biological fertilizers for both TPC and TFC, with the latter being promoted by the application of Promofort®. Finally, NMDS analyses and heatmaps with hierarchical clustering showed that the composition and abundance of OTUs in the bacterial profile varied with fertilization type and increased over time.

Respons kedelai (Glycine max) varietas Mitani terhadap pemberian beberapa jenis pupuk hayati pada tanah podsolik

This study aimed to examine the growth response and yield of Mitani variety soybean plants after treating them with Rhizobium biofertilizer, Phosphate Solvent Microbes, and Azotobacter using gamma-ray irradiation technology. This research was conducted from January to May 2016 and used one-factor Randomized Block Design (RBD) with the several biofertilizer formulas treatments. The treatments level used were K0 = without fertilizer (control); K+ = 100% urea; Rhi = single strain Rhizobium; Rhi+MPF = Rhizobium Inoculant + Phosphate Solvent Microbes; and Rhi+MPF+AZ = Rhizobium + MPF + Azotobacter. Each application of biological fertilizer is mixed with 50% urea fertilizer. The data obtained were analyzed using the F-test (ANOVA) and continued with the Duncan Multiple Range Test (DMRT) at a confidence level α = 0.05. The results showed that the best plant height occurred in soybeans that were given rhizobium fertilizer and pophat solvent microorganisms. Meanwhile, the best average wet and dry weight of soybean plants (p&lt;0.05) occurred in the 100% urea fertilizer treatment. Apart from that, the application of 100% urea fertilizer produces plants with higher water content compared to the biological fertilizer treatment. Another finding from this research is that the number of pods is not directly proportional to the weight of the root nodules. Generaly, it can be concluded that soybean plants respond more to urea fertilization than biological fertilizer.

Pengaruh jarak tanam dan penggunaan pupuk hayati terhadap pertumbuhan dan hasil tanaman bawang merah (Allium ascalonicum L.) Varietas Bali Karet

This study aims to analyze the interaction of plant spacing and use of biological fertilizers on the growth and yield of shallot (Allium ascalonicum L) and analyze one or more spacing and doses of biological fertilizers that have a better effect on the growth and yield of shallot (Allium ascalonicum L.). This research was conducted in the experimental land of the Gunung Sari farmer group in Sukasari Kaler Village, Agrapura District, Kab. Majalengka. This study used a factorial randomized block design (RAK) method with 12 treatments, each treatment repeated 3 times. Differences in the effect of treatment were tested with the F test at the 5% level. When F hits &gt; F table, then the test is continued to determine the effect between treatments that cause differences in diversity with Duncan's multiple range test at the 5% level. The results showed that all spacing treatments without the application of biological fertilizers gave the lowest results for all observed variables, both growth and yield variables. While the best results were shown by the application of biological fertilizers at a dose of 75 grams for all spacing applications, both spacing of 10 cm x 15 cm, 10 cm x 20 cm or 10 cm x 25 cm on the average of the observed variables.

Impact of Biological Fertilizers Based on Essential Bacterial Stimulants on Rice Growth and Production

Biological fertilizers are a group of living organisms whose activities can improve soil fertility, fertilizers that contain microbes and are useful for helping plant growth. The purpose of this study was to analyze the growth and production of rice plants against the application of biological fertilizers. There are 7 bacterial isolates used as biofertilizers, namely, Bacillus sp., two Pseudomonas sp. strains, two Azospirillum sp. strains, and two Azotobacter sp. strains. This study used an experimental design method through a one-factor randomized block design. The treatment in the study consisted of no fertilization, compost, 100% NPK, 7 isolates enriched compost, 7 isolates enriched compost+50% NPK, 4 isolates enriched compost, and 4 isolates enriched compost+50% NPK. The results showed that compost enriched with biological fertilizers could increase the nutrient content of the soil, thereby increasing the growth and production of rice plants. Treatment of compost enriched with 7 isolates+50% NPK gave the highest yield, both for rice plants. The use of biological fertilizers can reduce the dose of inorganic fertilizer use by up to 50% in rice cultivation.

Effect of Biochar on Yield, Yield Components, and Macronutrients of Rice (Oryza sativa L.)

Biochar has recently caught researchers’ attention due to its potential of improving soil fertility and immobilizing pollutants and its emergence as a proper method of increasing crop yields. An experiment was conducted on the effect of chemical, ecological, and organic (biochar and compost) nutritional systems on yield and yield components of rice as a split-plot field experiment based on a randomized complete block design with three replications in two sites in Lahijan in 2018-2019. The experimental factors included nutrition at three levels (ecological, chemical, and control) as the main plot and the organic matter at four levels (urban waste compost, biochar, Azolla, and control) as the sub-plot. The combined application of chemical and organic fertilizers produced the highest grain yield, reflecting the positive effect of their combination on grain yield and yield components of rice cv. ‘Hashemi’. The results showed that the highest grain yield of 3699 kg ha-1 was related to the treatment of chemical fertilizer and biochar and the lowest (2209 kg ha-1 , i.e., a 40% decline) to the control (no chemical or biological fertilizer application). The highest number of fertile tillers and panicles per plant was obtained from the application of chemical fertilizer and biochar, the highest number of filled grains per panicle (116 grains) was observed in the application of chemical fertilizer and biochar at the university farm, and the lowest (84 grains) from the control (unfertilized treatment) at the Kateshal farm. The nutrient uptake was significantly higher in the chemical and biochar treatment than in the other treatments. Organic systems had varying impacts on rice yield and reduced the application of chemical fertilizers. Biochar contributed to increasing the growth, yield, and nutrient uptake of rice plants.

The impact of water management systems and biofertilizers on soybean production in type B tidal swamp lands in Kapuas district, Central Kalimantan, Indonesia

Acid sulfate land is a land resource that can be optimized to achieve soybean selfsufficiency. Management of irrigation systems and the use of biological fertilizers play an important role in efforts to increase yields. This research aimed to determine the effect of biological fertilizer application and water management systems on soybean yields on tidal swamp land of overflow type B. The research was carried out on potential acid sulphate land of overflow type B using a Split Plot Design with the main plot, namely water management, namely the system management with trenches 20 cm deep and without trenches and subplots is the use of biological fertilizer, namely, Rhizobium sp., Mycorrhiza, Rhizobium sp. specific for acid land, Rhizobium sp. + Mycorrhiza. Management of water level without channels and without the addition of biological fertilizer for cultivating soybean plants in the dry season on type B tidal land is effective in maintaining soil pH that can be tolerated by soybean plants. There was no interaction and no significant effect of regulating the water level with ditches and adding biological fertilizer on the productivity of soybean plants due to rising water levels.

Effect of MVA Indigenous Isolates and Types of Planting Media on Growth and Result of Corn Plant on Dry Land Central Lombok

The potential of agriculture in Indonesia has not been fully explored. Indonesia has favorable climatic conditions, natural resources, and human resources. West Nusa Tenggara (NTB) has an unproductive land area of 1.807.463 ha of the total area of NTB. One of the efforts to increase the productivity of dry land is the application of biological fertilizer. Biofertilizers that are expected to have a high contribution in increasing fertilization efficiency are Vesicular Arbuscular Mycorrhizae (MVA). MVA is important to apply to infertile soils with low nutrient content. This study aimed to determine the effect of MVA isolates Indigenous and media types on the growth and yield of a corn plant on dry land in Central Lombok The study was carried out for 3 months using a Completely Randomized Design (CRD) consisted of 2 factors, namely the Indigenous MVA isolate type factor with consisted of 3 levels and the planting media type factor consisting of 4 levels where each treatment was repeated 3 times so that 36 unit were obtained test. The results showed that the variety of isolates showed significant differences in all parameters of growth and yield of corn plat (plant height, root lengthand root weight). The type of planting media showed a significant difference in the parameters of root weight of corn plants. The high growth and yield response of corn plant was thought to be due to the association between corn plant and MVA which was seen in the increased plant growth in all MVA inoculated treatments with the highest plant growth in the treatment using isolate I2 (Gigaspora sp.) on the parameters observed for plant height, root length and root weight. In all parameters observed for corn plant growth, it was found that the genus Gigaspora was superior to the genus Glomus. The best kind of planting media in increasing the growth of corn plants is a mixture of rice husk and soil biochar media with a ratio of 1:3. The use of husk and soil biochar media that was given spores of the genus Gigaspora gave the best corn plant growth.

Application of Biological Fertilizer with Different Application Time Intervals on the Development of Seedling Down Disease and Growth of Mustard (Brasica rapa) in Nurseries

Seedling fall disease caused by the fungus Rhizoctonia solani is one of the limiting factors in the cultivation of mustard plants. This pathogen can attack plants in the nursery as well as after the plants in the field. The aim of this study was to determine the effect of using biological fertilizers Azoto-Trico and KIBPF with different application time intervals on the development of seedling fall disease and the growth of mustard in the nursery. The study used Azoto-Tricho and KIBPF biological fertilizers with application intervals of 2 days, 4 days and 6 days. The results showed that the application of biological fertilizers Azoto-Tricho and KIBPF with different application time intervals had an effect on controlling seedling fall disease and increasing plant height and plant fresh weight. The application of Azoto-Tricho biofertilizer and KIBPF if applied at intervals of 2 days or 4 days or 6 days had the same ability to control seedling fall disease and increase plant height and fresh weight of mustard plants in nurseries.

Growth Growth Response of Several Varieties of Oil Palm Sprouts (Elaeis guineensis Jacq.) Towards Application of Biological Fertilizer in Pre-Nursery

This research was conducted at the Faculty of Agriculture, University of North Sumatra, Medan from September 23, 2021 to December 14, 2021. The study used a factorial completely randomized design, the first factor being the DxP Yangambi varieties, the DxP Simalungun varieties, and the DxP Dumpy varieties and the second factor being the application of biological fertilizers consisting of: 0 g/l water, 2.5 g/l, 5 g/l water, 7.5 g/l water. The results showed that the PPKS DxP Dumpy varieties significantly increased plant height at 8, 10, and 11 weeks of age of oil palm (Elaeis guineensis Jacq.) seedlings in pre-nursery. The application of biofertilizers did not significantly increase the growth of oil palm (Elaeis guineensis Jacq.) seedlings in the pre-nursery. The interaction of biological fertilizer application with varieties significantly increased plant height from 7-12 weeks of age on oil palm (Elaeis guineensis Jacq.) seedlings in pre-nursery.

Effect of Biofertilizer and Inorganic Fertilizer on Growth and Productivity of Shallot (Allium cepa L.)

Shallots are categorized as a national priority commodity as a kitchen spice needed every day. Shallots are a commodity that the production continues to increase from year to year. National shallot production increased by 4.9% from 2018 production of 1,502,436 tons and for the North Sumatra region it increased by 7.5% from 2018 production of 113,864 tons (BPS, 2019). This study aims to determine the effect of biofertilizer and inorganic fertilizer on the production of shallots (Allium cepa L.) using mini bulbs and mother bulbs on inceptisol soils in the Practice Field of the Medan Agricultural Development Polytechnic (Polbangtan Medan). This research was conducted from June to October 2021 at Polbangtan Medan. The study used a factorial randomized block design with three replicates and 18 treatment combinations of treatment dosage of organic fertilizer and biofertilizer treatment. Observation parameters in this study were soil analysis, plant height, number of leaves, number of tillers, wet weight, and dry weight. The results of soil analysis on parameters N-total (0.11%) in the low category, C-Organic (0.97%) in the low category, CEC (18.85) in the medium category, pH (7.01) in the neutral category, and Bray II (69.71) high category. This study revealed that the application of biological fertilizer and inorganic fertilizer had no significant effect on all observation parameters, both growth and tuber yield. For the Sanren variety, it is recommended that 5 ml/L of biofertilizer and 75% dose of inorganic fertilizer because it showed the best conditions for the parameters of the number of leaves, wet weight of the sample, and plot. For the Lokananta variety, it is recommended that 10 ml/L of biological fertilizer and 25% dose of inorganic fertilizer because it showed the best conditions for the parameters of plant height, number of leaves, and wet weight of the sample, and plot.

The effect of biological fertilizer application on interest amount and relative water content in rehabilitation effort of old cacao

Purpose This study was to examine the effect of the application of Trichoderma asperellum and Azotobacter chroococcum on the condition of cacao leaves (RWC and LMA) and their relationship to the interest amount formed, after treatment Inarching grafting in the rehabilitation of old cacao plants from side grafting. The method used in this study was Split Plot Design, with 2 factors, namely the use of T. asperellum and A. chroococcum which were repeated 3 times each, and using Duncan’s New Multiple Range Test (DNMRT). The best results obtained were the relative water content of the leaves 98.43%; LMA 225.05 mg.mm−2, which produced an average number of 62 flowers every tree, with bacteria A.chroococcum and fungus T.asperellum applied twice each using the inarching grafting method which was carried out at the time of the appearance of the flush.

MALAPARI (Pongamia Pinnata (L.) Piere) GROWTH ON THREE PLANTING PATTERNS WITH TRICHODERMA AND MYCORRHIZAE SP APPLICATION

Malapari (Pongamia pinnata) is a potential plant for biodiesel and has the ability to grow on marginal land. Malapari cultivation has not yet been carried out due to low economic value. Agroforestry crop patterns are expected to provide intermediate results so that people would be interested in planting malapari. Planting on coastal land requires the right technology to produce optimal growth. This study aims to determine the effect of malapari cropping patterns and evaluate biological fertilizer application in the seedling phase after planting in the field. The research uses a split plot design (Split Plot Design) with the main factors that are the pattern of malapari planting and sub-plots that are the type of application of biofertilizer. The results obtained from the study showed that the interaction of cropping pattern treatment and biofertilizer application did not give significant growth to malapari; the combination of the application of organic manure, Trichoderma spp and mycorrhiza bio-fertilizers in the nursery yielded the largest malapari diameter growth after planting in the field at the age of 3 years.

EFFECT OF BIODIVE FERTILIZER ON N, P, AND K NUTRITION STATUS AND GROWTH AND RESULT OF TWO GOGO RICE VARIETIES IN COASTAL AREA

This study aims to determine the effectiveness of the application of biological fertilizers on the availability of nutrients N, P, and K in the soil in coastal areas and the yield of upland rice varieties Inpago 10 and Sunggau. This research was conducted from September to December 2019 in Beringin Raya Village, Muara Bangkahulu District, Bengkulu City. The experimental design used was a two-factor Completely Randomized Block Design. The first factor is land rice varieties, namely varieties Inpago and Sunggo, while the second factor is fertilizer input, double inoculant of P solubilizing bacteria + K solubilizing bacteria + N fixing bacteria, double inoculant of AMF + solubilizing bacteria K + N-fixing bacteria , and inorganic fertilizer recommended by AIAT, namely 200 kg Urea/ha, 100 kg SP36/ha, 100 kg KCl/ha. The two factors were combined so that there were 6 treatment combinations which were repeated 4 times so that there were 24 experimental units. Each experimental unit consists of 50 plants so that the total plant population was 50 x 24 = 1,200 plants. The results showed that the use of biological fertilizers in upland rice cultivation in coastal areas was able to increase the availability of N, P, and K nutrients compared to the initial soil and recommended fertilizers. Upland rice varieties suitable for coastal areas are Inpago 10 with fertilizer in the form of a combination of biofertilizers of Phosphate Solubilizing Bacteria + K Solvent Bacteria + N Fixing Bacteria.

THE APPLICATION OF BIOFERTILIZER ON GROWTH AND YIELD OF MELON VARIETIES (Cucumis melo L.)

Melon (Cucumis melo L.) is one of potential horticultural crop in Indonesia. Unfortunately, melon production is currently unable to meet national demand. The objective of this study was to investigate the effect of biofertilizer, varieties and interaction between the dose of biofertilizer and varieties on the growth and yield of melons. The study was conducted in January-April 2021 at Paloh Lada Village, Dewantara District and the Laboratory of Agriculture Faculty, Universitas Malikussaleh. These experiments were arranged in a Factorial Randomized Block Design (RBD) with two factors. The first factor was biofertilizer (P) consisting of 4 levels: P0 (0 ml/L), P1 (5 ml/L), P2 (10 ml/L) and P3 (15 ml/L) and the second factor was melon varieties (V): V1 (F1 Pertiwi Anvi) and V2 (F1 Action 88). There was 8 treatment combinations with 3 replications, resulted in 24 experimental units. The interaction between biofertilizers and varieties gave significant effect on the growth and yield of melon, while the interactions between bio fertilizer did not differ on all variables observed. The application of biological fertilizer 10 ml/L on V1 variety (F1 Pertiwi Anvi) is recommendable. There was an interaction between of biological fertilizers and melon varieties on the total dissolved solids (Brix %).

EFFECT OF BIOFERTILIZER APPLICATION ON SOME SUNFLOWER GENOTYPES

As there are a lot of environmental problems gaining from chemical fertilizers multiuse, more attentions has been drawn to the application of biological fertilizers in agriculture. An investigation for study the response of three sunflower genotypes (Helianthus annus L.) Giza-102, Sakha-53, line 120 to three bio-fertilizers (Bio1= nitrogen fixing bacteria, NFB, Bio2= phosphate dissolving bacteria, PDB, Bio3= potassium edit facilitator PEF) was carried out during summer seasons of 2018 and 2019 at the Experimental Farm, Faculty of Environmental Agricultural Sciences, Arish University, EL-Arish, North Sinai Governorate Egypt to maximize seed yield and oil content of sunflower crop under the newly reclaimed soil and the environmental conditions of North Sinai. Salinity of irrigation water ranged from 4500 to 5500 ppm, using drip irrigation system. Sunflower seeds were obtained from Oil Crops Research Section, Field Crops Research Institute, while, bio-fertilizer were obtained from Bacterilization Unite, Microbiology Soil Department, Water and Soil Research Institute, Agriculture Research Center, Giza Egypt. The main results were that Sunflower Giza-102 cultivar surpassed the other studied genotypes in plant height (cm), number of leaves per plant., fresh and dry leaves weight per plant (g)., yield attributes, head diameter (cm), 100-seed weight (g), seed oil content(%), seed weight/plant (g), seed yield (kg fed-1), and oil yield(kg fed-1) seed and oil yields. In concern to biofertilizers, bio3 (potassium edit facilitator) gave superiority in most traits and seed yield but Bio1 (nitrogen fixing bacteria) gave the maximum seed oil content. So, for maximizing seed yield for sunflower under semi arid regions, Giza-102 genotype can be cultivated with bio fertilizer for potassium and nitrogen fixing bacteria.

Application of biological fertilizers on growth and yield of sweet corn (Zea mays saccharata Sturt) in dry land

Sweet corn (Zea mays saccharata Sturt.) is such a popular commodity that it has good market opportunities. Increase productivity of sweet corn, necessary through improving its physical, chemical, and fertility properties. Continuous use of inorganic fertilizers can reduce soil fertility. Biofertilizer is an alternative to improve and enhance soil quality to increase growth and increase plant’s yield and quality significantly. The study aimed to determine the effect of biofertilizers’ application on the growth and yield of sweet corn on the upland. The research was conducted in 2016 in Tapin district, South Kalimantan Province. It is using a randomized block design with four treatments and eight replications. The treatments consisted of Po without biofertilizer + NPK fertilizer at a dose of 100%, P1 biofertilizer + NPK fertilizer at a dose of 100%, P2 biofertilizer + NPK fertilizer at a dose of 75%, P3, biofertilizer + NPK fertilizer at a dose of 50 %. The variables observed were plant height, cob weight with husk, cob weight without husk, cob diameter, cob length, number of seed columns, and production. The results showed that applying biofertilizer increase cob weight and sweet corn production.