Levels Of Biofertilizer Research Articles

Yield and Nitrogen Uptake of Wheat as Influenced by Nitrogen, Vermicompost and Biofertilizer Application at Rampur, Chitwan, Nepal

High cost, unavailability, and imbalance use of chemical fertilizers and environmental degradation are challenging sustainability of wheat production in Nepal. Integration of vermicompost, biofertilizer (Azotobacter chrococcom) and chemical fertilizer can improve the situation. A field experiment was conducted to assess the combined application of vermicompost, chemical fertilizer and biofertilizer on the growth, yield, and nitrogen uptake of wheat at Rampur Chitwan from November 2021 to April 2022. The experiment was laid out in a strip-split plot design with five N levels as horizontal factors (0, 25, 50, 75, and 100% of recommended dose), two vermicompost levels (0 and 5 t ha-1) as the vertical factor, and two biofertilizer levels (with and without application) as the sub-plot factor with three replications. Data on growth, yield attributes and yield of wheat, nitrogen uptake were collected, analyzed and presented. The research result revealed a significant influence of biofertilizer and nitrogen levels on grain yield of wheat. Full dose of nitrogen resulted a significantly higher grain yield (4441.71 kg ha-1) than other nitrogen levels (0, 25, 50, 75 % of recommended dose with grain yield 2792.11, 2982.20, 3771.17. 4231.63 kg ha-1 respectively). Biofertilizer application had significantly higher grain yield (3726.76 kg ha-1) compared with no biofertilizer application (3560 kg ha-1). There was significant interactions between biofertilizer application and nitrogen levels on number of grains per spike and sterility percent of wheat. The number of grain per spike was highest with 100% recommended N with biofertilizer application (47.52 grains/spike) followed by 75 % recommended N with biofertilizer application (46.53 grains/spike). The sterility % was lowest (6.47 %) with 100 % N with biofertilizer application followed by 75 % N with biofertilizer application (6.72 %). Total nitrogen uptake was significantly higher (119.04 kg ha-1) for full dose of nitrogen as compared with lower nitrogen levels (0, 25. 50, 75 % recommended N levels). Biofertilizer application also resulted in significantly higher nitrogen uptake (89.89 kg ha-1) as compared with no Biofertilizer application (79.89 kg ha-1). Integration of biofertilizer, with chemical fertilizer 75 - 100 % recommended N level could increase the growth, yield, and nitrogen uptake of wheat in Chitwan.

Effect of Liquid Biofertilizer and Variable Source of Nutrients on Growth and Yield of Indian Mustard (Brassica juncea L.) in Western U.P., India

A field experiment was conducted during Rabi season of 2021-22 at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.). The experiment consisted of twenty treatment combinations with variable source of nutrients and biofertilizer. The treatment consisted of four sources of nutrients and five Biofertilizer levels were tested in RCBD (Factorial) with three replications. Results revealed that the application of 75% RDF (NPKS 90:45:45:30 kg/ha) +2-ton Vermicompost ha-1 gave higher plant height (203.55 cm), LAI (2.929), branches plant-1, dry matter accumulation (66.65 g plant-1), and seed (1854), stover (7193) & biological (9047) yield (kg ha-1) of mustard crop. Similarly, application of Azotobacter + PSB + KMB + Zn SB each @20 ml kg-1 seed treatment gave higher plant height (201.46 cm), LAI (2.702), branches plant-1, dry matter accumulation (64.98 g plant-1), and seed (1735), stover (6888) & biological (8623) yield (kg ha-1) of mustard crop. Thus, it may be concluded that the application of 75% RDF (NPKS 90:45:45:30kg/ha) + 2‑ton Vermicompost/ha +Biofertilizers (Azotobacter + PSB + KMB + ZnSB each @ 20 ml/kg Seed treatment) found economical in obtaining higher growth and yield of mustard.

Effect of NPK Fertilizers, Farmyard Manure (FYM) and Bio-fertilizers on Quality Parameters of Onion (Allium cepa L.) Grown in Jaipur, Rajasthan

The current experiment was conducted in loamy sand soils of the Horticulture farm, Vivekanand Global University Jaipur, during Rabi season of 2020-21 and 2021-22. The experiment comprised of 32 treatment combinations replicated three times, was laid out in split-plot design (SPD) with four fertility levels of NPK (0, 50, 75 and 100% of recommended dose of NPK) and two levels of FYM (without FYM and with FYM @ 25 t ha-1 were added in main plots. Four bio-fertilizer levels (No inculcation N2 fixer Azotobacter, PSB inculcation and N2 fixer Azotobacter + PSB inoculation) were added in sub plots. The results of the study have clearly shown that application of chemical fertilizer up to 100% RDF increased all the quality attributes (pungency, chlorophyll content and TSS), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop. With application of FYM @ 25 t ha-1 significantly improved all quality attributes (Allyl propyl disulphide, chlorophyll and TSS), N, P, K and S content and uptake and availability of N, P and S in soil after harvest the crops. Use of biofertilizers (N2 fixers and PSB) alone or in combination increased all the quality attributes (Allyl propyl disulphide, chlorophyll and TSS content), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop.

Effect of NPK through Chemical Fertilizers Combination with Farm Yard Manure (FYM) and Bio-fertilizers on Yield Attributes of Onion (Allium cepa L.) in Jaipur Region of Rajasthan, India

The field experiment was conducted in loamy sand soil of the Horticulture farm, Vivekanand Global University Jaipur, during Rabi season of 2020-21 and 2021-22. The experiment comprises of 32 treatment combinations replicated three times was laid out in split-plot design (SPD) with four fertility levels of NPK (0, 50, 75 and 100% of recommended dose of NPK) and two levels of FYM (without FYM and with FYM @ 25 t ha-1) were added in main plots. Four bio-fertilizer levels (No inculcation, N2 fixer Azotobacter, PSB inculcation and N2 fixer Azotobacter + PSB inoculation) were added in sub plots. The treatments comprised of Chemical fertilizers, FYM and biofertilizers with ten treatments Viz., F0- Control, F1-50% of recommended dose of NPK, F2-75% of recommended dose of NPK, F3-100% of recommended dose of NPK, M0- Without FYM, M1- With FYM @ 25 t ha -1, B0- No inoculation, B1- N2 fixer Azotobacter, B2- PSB inoculation and B3- N2 Fixer Azotobacter + PSB inoculation, respectively. The results of the study have clearly shown that application of chemical fertilizer up to 100% RDF increased the entire yield and its attributes viz. (neck length, bulb diameter, number of scales, fresh weight of bulb, volume of bulb). With application of FYM @ 25 t ha-1 yield significantly improved with its attributes. Use of biofertilizers (N2 fixers Azotobacter + PSB inoculation) in combination or alone increased all yield and its attributes. Integrated system approach is not only the liable for attaining fairly high productivity with substantial fertilizer economy but also a concept of soundness leading to sustainable agriculture .

Zinc Biofortification through Biofertilizers, Foliar and Soil Application in Maize (Zea mays L.)

Aims: Here is clearly aim of study is to achieve the maximum grain yield and for improve the economic conditions of farmers. Study Design: The experiment was conducted in a split-plot design. Place and duration of study: The field experiment was conducted to study the effect of biofertilizers, foliar and soil application of zinc fertilizers in maize (Zea mays L.) at the research farm of the Khalsa College, Amritsar, Punjab (India) (31o63' N latitude, 74o83' E longitude and 234 m above sea level) during rainy seasons of 2018 and 2019. Methodology: The four levels of biofertilizers and foliar application as main plot [recommended dose of fertilizer (RDF: 150 kg nitrogen: 27.3 kg phosphorus: 25 kg K ha-1), RDF + Zn solubilizing bacteria (ZnSB), RDF + ZnSB + vesicular-arbuscular mycorrhiza (VAM) + 0.5% foliar ZnSO4.7H2O) at silking and early milk stage] and four subplot treatment of soil application of ZnSO4.7H2O @ 12, 25 and 50 kg/ha at the time of sowing along with no soil Zn control were evaluated in three replications. Results: Foliar application of zinc in addition to biofertilizers (ZnSB + VAM) produced significantly higher growth, yield and quality over control treatment. Soil application of zinc sulphate (50 kg ha-1) significantly improved growth, grain yield and Zn harvest index, Zn mobilization efficiency index and recovery efficiency over no Zn control treatment. The grain zinc content, zinc uptake and zinc use efficiencies were significantly maximum with the application of VAM + ZnSB along with 0.5% zinc sulphate foliar at silking and early milk stage than ZnSB, VAM and control treatment. Conclusion: Zn application of soil and foliar improved the growth, yield and quality parameters of maize.

Response of Olive Trees (Olea europaea L.) cv. Zaity to Bio health and Foliar Spray of Tecamin max and Boron

During the growing season of 2022, the experiment was conducted in one of the private orchards located in Hassan ava village, Zakho district, Dohuk governorate, Kurdistan region, Iraq, to study the response of olive tree (Olea europaea L.) cv. Zaity to biofertilizer (bio health) and foliar spray of the amino acid (tecamin max) and Boron. Olive trees were planted 6 x 6 m apart on clay sandy loam soil and fed with well water using a drip irrigation system. Olive trees were treated with three levels of biofertilizer (bio health) at (0, 1,0 and 15 g.L-1), added to the soil, and three levels of the foliar spray with amino acid (tecamin max) at (0, 10, 15 ml.L-1), and three levels (0, 200 and 300 mg. L-1) of boron foliar spray. A factorial experiment with three replications was carried out in a randomized complete block design (RCBD), using one tree for each experimental unit. The study reached the following results: application of biofertilizer (bio health) in the soil, especially at 15 g.L-1, and foliar spraying of the amino acid (tecamin max) at 15 ml.L-1 led to a significant increase in all studied characters (leaves mineral content N, P, K, and B%) and physical characters of fruit (fruit weight, fruit length, fruit width and total yield per tree) except pulp: stone ratio, while the control treatment gave the lowest average for the aforementioned traits. Foliar spray of boron especially the level of 300 mg. L-1, led to a significant increase in all the studied characteristics (leaves mineral content N, K, and B%) and physical characters of fruit (fruit weight, fruit length, fruit width, and total yield per tree) except pulp: stone ratio and phosphorus content in leaves, while the comparison treatment gave the lowest average for the aforementioned traits. There was also a significant increase in the binary and triple interactions of the study treatments on all the studied traits, especially the high levels of the study factors (15 g.L-1 bio-health, 15 ml.L-1 tecamin max, and 300 mg. L-1 boron).

Application technique and concentration of biofertilizer from rhizosphere of cocoa (Theobroma cacao L.) given biosurfactant dietanolamide oil palm on the growth of cocoa seedlings

This research aimed to know the influence of application technique and biofertilizer that given concentration of biosurfactant diethanolamide (DEA) for the growth of cocoa seedlings and also to know the interaction between application technique and concentration level of biofertilizer given DEA growth of cacao seedling (Theobroma cacao L.). This research was conducted in UPTD SITANDU, Banten and the Soil Agroclimate Laboratory, Faculty of Agriculture, University of Sultan Ageng Tirtayasa from December 2020 until March 2021, by using randomize complete block design with two factors. The first factor is technique application T1 at soil, T2 at leaf, and T3 with combination soil and leaf fertilization), and the second factor is concentration level of biofertilizer given DEA P1 10 ml and 5%, P2 10 ml and 10%, P3 20 ml and 5%, P4 20 ml and 10%. As a result, there were twelve possible treatment combinations, and each was applied three times. Parameters total chlorophyll (unit), root length (cm), stem diameter (mm), seedlings dry weight (g) and root shoot rasio (g). The results there was no interaction effect between the two treatments, namely application technique and concentration level of biofertilizer with DEA biosurfactant, on all observed parameters of cocoa seedlings.

Effect of organic manure, Biofertilizer and foliar spray of Ascorbic acid on vegetative growth and fruit quality of Basheqi cv. of Olive (Olea europaea L.)

ABSTRACT: This experiment was conducted in a private olive orchard located in the village of Kasara, Dohuk governorate, Kurdistan region, Iraq, during growing season 2021-2022 on 14 years old olive trees cv. Basheqi (Olea europaea L) planted at 4x8m apart in (silty clay loam) soil, under drip irrigation system. Three levels of Organic manure (poultry manure) at (0, 4 and 8) kg/tree was added to the soil at the second week of December in 2021 season, three levels of Bio-fertilizers (Bio Health) at conc. (0, 10 and 15) g.l-1 and three concentrations (0, 300 & 600 mg.l-1 ) of foliar spray of ascorbic acid. Bio-fertilizers and ascorbic acid was carried out two times per season, First: Prior-Flowering, Second: After Setting in order to investigate there influence on growth and Fruit Quality of olive trees. A factorial experiment with three replications was carried out in a randomized complete block design (RCBD), using one tree for each experimental unit. Results indicated that soil application of organic manure (poultry manure) at 8 Kg/tree significantly increased all studied characters {average leaf area, chlorophyll content, Protein % in Leaves, Fruit Total Soluble Solids TSS %, Total Carbohydrates %, Anthocyanin Content, Ascorbic acid (Vit.C), Percentage of Oil}. Soil application of biofertilizer (bio health) at 15g.l-1 significantly increased all study characters except TSS. Foliar application of Ascorbic acid at 600 mg/l-1 significantly increased average leaf area, total chlorophyll content, Protein % in Leaves, Ascorbic acid, Percentage of Oil. In comparison to other interactions, the interaction of (8 kg O.M./tree, 15 g.l-1 bio fertilizer, and 600 mg.l-1 ascorbic acid) appeared to be more efficient in enhancing all characteristics studied in this experiment.

Growth and Yield of Rice (Oryza sativa L.) are Influenced by Different Levels of Nitrogen, Phosphorus and Biofertilizers

A field experiment was conducted during the rainy (Kharif) seasons of 2013 to 2015 at Agriculture Research Station (Irrigation crops), Anand Agricultural University, Thasra.The farm is located in hot semi-arid eco-region with medium deep black soils and geographically situated at 22.400 latitude, 73.120 longitude and 32.4 m above the mean sea-level.To study the response of different levels of Nitrogen (N), Phosphorus (P) and Biofertilizers on Rice (Oryza sativa L.) under middle Gujarat Agro climatic zone III, 12 treatment combinations consisting three levels of Nitrogen, two levels of Phosphorus and two levels of Biofertilizer were tried in factorial randomized block design with four replications. The three-year experimental results revealed that different treatments for nitrogen levels were found significant for most of the growth and yield contributing characters, while for phosphorus and bio-fertilizer found non-significant. In pooled data the N level N3 (120 kg N ha-1) gave significantly higher grain yield of 5508 kg ha-1and was found significantly superior over N level of 80 kg (N1 ). The result revealed that the potential production and profit from the rice crop could be secured by applying120 kg Nitrogen ha-1 only to get higher yield in middle Gujarat Agro climatic zone III.

Effect of Bio-fertilizer, Humic Acid and Sea Algae Extract on Growth and yield of Sudan grass (Sorghum sudanese L.)

A field experiment was conducted during the spring agricultural season of 2021 in two locations, the first in Al-Tilga (10 km northwest of Mosul) and the second in Al-Shuhada (35 km west of Mosul). The experiment was applied according to a randomized complete block design (R.C.B.D.) with a split-plot system. The levels of bio-fertilizer occupied the main plots, and the levels of humic acid and seaweed extract (Alggren-Twin) were secondary plots in three replications. The two factors of the study were as follows: The first factor was biofertilizer (Bactofed) at two levels of zero and 750 ml / 1000 L of water/ha. The second factor is four levels of two levels of seaweed extract with the trade name (Algaren Twin): 3 and 6 ml /L of water. The third and fourth levels are 8 and 16 kg/ha of humic acid. The results of the study were as follows: The addition of bio-fertilizer caused a significant increase in plant height, the yield of fresh and dry forage, the number of dahlias per plant, the weight of panicles grains, and grain yield of individual and total plants in both locations. Also, the addition of seaweed extract and humic acid increased in most of the studied traits to achieve the highest average for most traits and in both locations at the level of humic acid 16 kg/ha. Keywords: Boi-fertilizer; Humic acid; Sea Algae; Sudn agrass; Sorghum sudanense L.

Yield attributes of Cassava (Manihot esculenta Crantz) and soil properties in Southern Laterites, Kerala as influenced by consortium biofertilizers

A field experiment was undertaken at College of Agriculture, Vellayani during June to December 2019, to assess the efficacy of liquid consortium biofertilizer, Plant Growth Promoting Rhizobacteria (PGPR) Mix - I in cassava and to examine the changes in soil chemical and biological properties with the application. The treatment combinations included four levels of biofertilizer [PGPR Mix - I liquid (L) @ 2 %, PGPR Mix - I liquid (L) @ 5 %, PGPR Mix - I powder (P) formulation @ 10g of 2 % mixture per plant, without biofertilizer] and three levels of nutrients, with 50: 50: 100 kg NPK/ha as the standard dose of nutrients (SDN), [50 % SDN, 75 % SDN, 100 % SDN]. The 4 × 3 factorial experiment was laid out in randomized block design with three replications. The results of the study revealed that the liquid biofertilizer consortium at 5 per cent + 75 percent SDN (37.5: 37.5: 75 kg NPK /ha) recorded significantly superior yield attributes in cassava and improved the soil organic C, available K status and microbial count.

Effect of Biofertilizers and Zinc on Growth and Yield of Maize (Zea mays L.)

A field experiment was conducted during Kharif 2022 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology And Sciences, Prayagraj, Uttar Pradesh, India. The soil of the experimental field was sandy loam in texture, slightly alkaline in soil reaction (pH 8), low level of organic carbon (0.28%), available N (219 kg/ha), P (11.6 kg/ha) and K (217.2 kg/ha). The experiment was conducted in randomized block design consisting of 10 treatments with 3 different levels of biofertilizers and different levels of zinc 0.2%, 0.4% and 0.6% (foliar application) with three replications and the treatments were allocated randomly in each replication. On the topic “Effect of Biofertilizers and Zinc on Growth and Yield of Maize (Zea mays L.)”,.The results showed that treatment 9 with the application of PSB (10 g) + VAM (10 g) + Zinc 0.6% recorded significantly higher plant height (213.08 cm), higher plant dry weight (106.76 g) ,maximum number of cobs/plant (2.20), higher cob length (17.63 cm), maximum number of seed/cob (294.56), higher seed index (39.56 g), higher seed yield (2.30t/ha), higher stover yield (8.53 t/ha), higher harvest index (21.26%) compared to other treatments. The maximum gross returns (1,08772.00 INR/ha), maximum net returns (72,573.00 INR/ha) and benefit cost ratio (2.00) was recorded in treatment 9 with the application of PSB (10 g) + VAM (10 g) + Zinc 0.6% as compared to other treatments. Minimum parameters were recorded in treatment 10 control plot with RDF 120:60:40 kg/ha NPK.

Response of Biofertilizers and Kinetin on Growth and Yield Parameters of Summer Blackgram (Vigna mungo L.)

The field experiment on blackgram was carried out in summer, 2022 at the Crop Research Farm in the Department of Agronomy. The treatment consisted of three levels of biofertilizer no seed inoculation, Phosphate solubilizing bacteria (20 g/kg seeds), Rhizobium (30 g/kg seeds), three levels of kinetin (20, 30 and 40 ppm) foliar spray and a control. The experiment was set up using a Randomized Block Design with ten treatments and three replications. The variety black gold of black gram was sown in Zaid 2022. The results of the experiment revealed that foliar application of 40 ppm kinetin along with biofertilizers recorded significantly increased growth parameters viz., plant height (33.94 cm), number of branches (8.13), number of nodules per plant (36.80), plant dry weight (4.47 g/plant), crop growth rate ( 8.23 g/m2/day), relative growth rate (0.10 g/g/day). Same treatment also resulted in boosting yield and yield attributes viz., number of pods per plant (27.50), number of seeds per pod (8.07), test weight (40 g), seed yield (0.71 t/ha), stover yield (1.82 t/ha), harvesting index (28.09 %). In terms of gross returns (67450.00 INR/ha), net returns (44885.00 INR/ha), and the B:C (1.99), this treatment also demonstrated its favorable effects.

A study on nitrogen, phosphorus, and biofertilizer levels' effects on rabi green gram quality, yield, and growth, as well as their lasting effects on succeeding summer maize under middle Gujarat conditions

A study on nitrogen, phosphorus, and biofertilizer levels' effects on rabi green gram quality, yield, and growth, as well as their lasting effects on succeeding summer maize under middle Gujarat conditions

Effect of Bio-fertilizer and Gibberellic Acid on Growth and Yield of Baby Corn (Zea mays, Poaceae)

The field experiment was conducted during Zaid season 2021-22 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P). The soil of the experiment plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.2), low in organic carbon (0.48%), available N (171.48 kg/ha), available P (13.6 kg/ha) and available K (215.4 kg/ha). The treatments consisted of three levels of Gibberellic acid 50, 100 and 150 ppm of foliar application and (20 g and 10g per kg litre of water) and two levels of Bio fertilizer {Azospirillum seed inoculation (10 and 20 g/kg of seed) and Azotobacter seed inoculation (10 and 20 g/kg of seed)} respectively and Azospirillum + Azotobacter 10 g/kg each gibberellic acid 150 ppm treatment combined. The experiment was laid out in randomized block design with nine treatments and were replicated thrice. Results defined those maximum values of plant height (185.29 cm), dry weight (90.42 g/plant), number of cobs per plant (2.64), cob length (19.76 cm), cob weight with husk (48.54 g/cob) and cob weight without husk (12.51 g/cob) cob yield with husk (11.04 t/ ha), cob yield without husk (4.15 t/ha) were recorded with application of Azotobacter 10g/kg + Azospirillum 10g/kg + Gibberellic acid 150 ppm (T9) treatment combination.

Response of Biofertilizers and Molybdenum on Growth and Yield Attributes of Chickpea (Cicer arietinum L.)

The field experiment entitled “Response of Biofertilizers and Molybdenum on Growth and Yield Attributes of Chickpea (Cicer arietinum L.)" was conducted during rabi, 2022 at Crop Research Farm in the Department of Agronomy, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj Uttar Pradesh. The experiment was layout in Randomized Block Design (RBD). The treatment consisted of three levels of Biofertilizer (Rhizobium, PSB and Rhizobium + PSB), Molybdenum (0.5, 1.0 and 1.5 kg/ha) and control. The soil in the experimental area was sandy loam with pH (7.8), Organic Carbon (0.43%), Available N (181.58 kg/ha), Available P (15.45 kg/ha) and Available K (197.64 kg/ha). Seeds are sown at a spacing of 30 × 10 cm to a seed rate of 80 kg/ha. The application of Rhizobium + PSB and Molybdenum 1.0 kg/ha significantly increased the Plant height (49.90 cm), No. of nodules/plant (32.60), Dry weight (35.33 g), Number of Pods/plant (60.20), Number of seeds/pod (1.80), Seed yield (1638.35 kg/ha) and Stover Yield (3539 kg/ha) of chickpea over the control.

Response of Bio Fertilizers and Phosphorus on Yield and Economics of Pearl millet (Pennisetum glaucum L.)

A field experiment was conducted during kharif season of 2022, at crop research farm, Department of Agronomy at Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P.).India. The objective is to study the Response of Bio fertilizers and Phosphorus on yield and economics pearl millet. The treatments consisted of three levels of Bio fertilizers (20 g/kg Azotobacter, 20 g/kg Azospirillum, 20 g/kg Azotobacter + Azospirillum) and three levels of phosphorus (35, 40 and 45 kg/ha). The experiment was laid out in randomized block design with the ten treatments combinations replicated thrice. The soil in experimental field was sandy loam in texture, having alkaline reaction (pH 7.7) with very low organic carbon (0.44%), available higher N (171.48 kg/ha), P (27.0 kg/ha) and higher level of K (291.2 kg/ha).The results show significantly higher in yield attributes viz. ear head length (25.25 cm), number of grains/ear head (2010.9),and yield viz. grain yield (3.25 t/ha) and Stover yield (6.27 t/ha). Maximum gross return (113750.00 INR/ha), net return (81010.00 INR/ha) and Benefit - cost ratio (2.47) was found in treatment (T9) with the application of 20 g/ kg Azotobacter + Azospirillum + 45 kg/ha Phosphorous.

Effect of Different Levels of Bio Fertilizer on Growth and Yield of Sorghum Genotypes

A field experiment was conducted during the autumn season 2021 in one of the farms affiliated to the district of Kuthi (Jableh) located in the north of Babylon province, at longitude 44 east and latitude 44 north, in a sandy loam texture soil. The arrangement of the split plot was used according to the randomized complete block design (R.C.B.D) with three replicates, biofertilizer levels 0, 2, 4, 6 kg ha-1 were used, which occupied the main plots, while the genotypes occupied sub plots, namely (Aniqath, Buhouth70, Rabih, Alkayr, Syrie and American). The traits of plant height, leaf area, chlorophyll content of leaves, number of grains in panicle, weight of 1000 grains, grain yield and biological yield were studied. The results showed the treatment of adding 4 kg ha-1 of biofertilizer excelled in the average plant height cm2 214.14, leaf area and leaf cm2 7897 content of chlorophyll 55.72. Whereas the addition of 6 kg ha-1 excelled and gave the averageshowed superior in triats number of grains in panicle2816, the weight of 1000 grains 27.487, and the grain yield was 7.02 tons.ha-1 and the biological yield was 21,791 tons ha-1. The results also showed a significant difference between the genotypes, where the genotypes Buhouth 70 surpassed in the average plant height cm2 285.94 and weight of 1000 grains 36.212 g, and the biological yield was 31,038 tons ha-1, while the Rabih cultivar excelled in the average leaf area 8560 cm2, number of grains per panicle 3885, grain yield 7.353 tons ha-1, harvest index 36.891%. The nteraction between levels of bio-fertilizer and gentypes showed the highest of grain yield trait at the highest level of bio-fertilizer, which amounted to 8.030 tons ha-1 for Rabih genotype.

Role of Arbuscular Mycorrhizal Fungi and Phosphate Solubilizing Bacteria in Improving Yield, Yield Components, and Nutrients Uptake of Barley under Salinity Soil

Barley (Hordeum vulgare, L.) is the fourth most important cereal crop in the world. Salinity decreases the productivity of plants grown under salinity conditions. It leads to deficiency and limited absorption of water and nutrients, ionic stress, oxidative stress, and osmotic imbalance. In saline soil, a field experiment was conducted to verify the effects of nine combinations among three levels of bio-fertilizers, i.e., control (without), arbuscular mycorrhizal fungi (AMF), and phosphate solubilizing bacteria (PSB), as well as three levels of phosphorus fertilizer recommended dose (RDP) on barley yield, its components and nutrients uptake, to evaluate the useful influences of these combinations to improve P management under salinity stress related to yield and its components as well as N, P, and K uptake in barley. Findings revealed that the combination AMF + 100% RDP improved plant height, length of spike, spikes weight, number of spikes plant−1, weight of 1000-grain, straw yield, grain yield, uptake of nitrogen (N), phosphorus (P), potassium (K) in grain and uptake of nitrogen (N), phosphorus (P), potassium (K) in straw by 19.76, 33.21, 40.08, 33.76, 14.82, 24.95, 47.52, 104.54, 213.47, 168.24, 124.30, 183.59, and 160.84% in the first season, respectively. Meanwhile, the increase was 19.86, 29.73, 40.47, 39.94, 14.92, 24.95, 47.94, 104.73, 213.33, 168.64, 124.47, 183.86, and 161.09% in the second season, respectively. AMF showed greater efficiency and effectiveness compared to PSB in improving yield and its components for all studied traits. The results of principle component analysis indicated that all combinations except AMF + zero% RDP, PSB + zero% RDP, control + zero% RDP, and control + 66% RDP showed high scores on positive PC1, where all studied traits were high. Therefore, it is recommended to inoculate the soil with AMF or PSB with the addition of phosphate fertilizer at the recommended dose under salinity conditions, i.e., AMF + 100% RDP (T1) or AMF + 66% RDP (T2) or PSB + 100% RDP (T4). The use of bio-fertilizers has increased plant tolerance to salt stress, and this was evident from the increase in different traits with the use of treatments that include bio-fertilizers.

Effect of Integrated Nutrient Management on Growth Parameters and Productivity of Maize Cultivar PMH-5

The present study was undertaken to study the effect of INM on growth parameters and productivity of maize cultivar PMH-5. An investigation was taken up during kharif season of 2020-21 at the Instructional Farm, Rajasthan College of Agriculture, Udaipur. The experiment was laid down in factorial randomized block design (FRBD) with three replications. The treatments comprised of three levels of vermicompost, i.e. Control (VC0), Vermicompost @ 2.5 t ha-1 (VC1), Vermicompost @ 5 t ha-1 (VC2), four levels of chemical fertilizers i.e. Control (F0), 50 % RDF(F1), 75 % RDF (F2), 100 % RDF (F3) and two levels of biofertilizer, i.e. Control (B0), Azotobacter + PSB (B1). The results revealed that all plant growth parameters, grain, straw and biological yield of maize were found highest with the combined application of Vermicompost @ 5 t ha-1 (VC2)+ 100% RDF (F2)+ Azotobacter + PSB (B1) Respectively, which is statistically at par with combined application of Vermicompost @ 5 t ha-1 (VC2)+ 100 % RDF (F3) + Azotobacter + PSB (B1).