Different Levels Of Humic Acid Research Articles

Effect of Different Levels of Humic Acid and Salicylic Acid on Yield ParameterS and Yield of Cowpea (Vigna Unguiculata)

An investigation was carried out at Narendra Deva University of Agriculture & Technology, Faizabad (U.P.) during Kharif season of 2013 to find out the effect of different levels of humic acid and salicylic acid on yield contributing parameters and yield of cowpea. The design of the experiment was Randomized Block Design and comprises of six treatments replicated thrice. The maximum pod per plant was recorded with T5 (Foliar spray of humic acid (26 ml/liter water) and 0.2% salicylic acid at 35, 55 and 65 DAS) while minimum number of pods per plant recorded in T2 (Foliar spray of humic acid (26 ml/liter water) at 25 DAS and 0.2% salicylic acid 55 DAS). Maximum pod length (75.92 cm), Maximum number of seed per pod (13.67) and 100 seed weight (13.29 g) was recorded in T5, followed by T4. The maximum seed yield per plant of 13.10 g and harvest index (42.28 %) was reported with the application of humic acid @ (26 ml/liter water) and 0.2% salicylic acid at 35, 55 and 65 DAS.

Response of two soybean (Glycine max L.) cultivars to different levels of humic acid and mineral fertilization

Response of two soybean (Glycine max L.) cultivars to different levels of humic acid and mineral fertilization

Distribution of macro- and micronutrients in leaves, roots, and scapes of gerbera affected by calcium and humic acid

Different levels of humic acid (HA) (0, 100, 500, and 1000 mg L−1) and Ca (3.5 and 7 meq/L) were applied to growth media. A multi-level factorial experiment with a completely randomized design was employed with three replicates to evaluate interaction effects. Macro- and micro-nutrient contents were measured in leaves, roots, and scapes of gerbera. Five hundred mg/L HA increased macro- and micronutrients (P, N, K, Mg, Ca, Fe, and Zn) contents of leaves, roots, and scapes. High HA levels reduced some nutrient contents. The 7 meq/L Ca significantly increased Fe and Zn contents of leaves and roots and K and Mg contents of roots, and had no significant effect on other macronutrients. The results showed the importance of Ca-HA treatment in gerbera cultivation through increasing nutrient concentration. The Ca-HA treatment exhibited significant effects on nutrient uptake of gerbera. Ca and HA combination was more effective, especially with 7 meq Ca and 500 mg/L HA, than the low Ca and HA content. The 7 meq/L Ca and 500 mg/L HA increased N, Ca, K, and Zn concentrations in leaves, and Ca, P, Mg, Fe, and Zn concentrations in scapes, and Zn in roots, whereas this trend for Fe, Mg, and N in leaves and P and Mg in roots was found in 100 and 1000 mg/L HA. Conclusively, nutrients’ absorbtion and accumulations in scape and leaves were higher than in roots and were higher when Ca was applied in 7 meq/L with HA at 500 mg/L to gerbera.

Evaluation of Antioxidant Activity of Garden Thyme (Thymus vulgaris L.) Affected by Humic Acid Under Urmia-Iran Condition

The trial aimed to study the effects of different levels of humic acid on the antioxidant activity of garden thyme. The study was conducted at the experimental fields of the Agronomy Department, Faculty of Agriculture, Urmia University, West Azerbaijan, Iran, and used randomized complete block design with four replications. Three different humic acid doses; 200 kg ha−1, 400 kg ha−1 and 600 kg ha−1, and control with no humic acid were the treatments. Total phenolic content, total flavonoid content, DPPH (1,1-diphenyl 2-picryl hydroxyl) radical scavenging activity, nitric oxide radical scavenging activity, and chain-breaking activity were determined. According to the results, the effect of different levels of humic acid in the first harvest on total flavonoid content and nitric oxide radical scavenging was significant whereas, in the second harvest, total phenols content, total flavonoids content, DPPH radical scavenging activity, and chain-breaking activity were significant. The maximum total phenolic content, and nitric oxide radical scavenging activity were obtained in the control treatment. The highest total flavonoid content, DPPH radical scavenging activity, and chain-breaking activity were obtained in the application of 400 kg ha−1 and 600 kg ha−1 humic acid.

Response of growth and yield of Sorghum (Sorghum bicolor L.) to different levels of Humic acid and sea- ALgae extract

The experiment was carried out during spring season of 2021 in two locations; first at village of Al-Thulja (10 km) northwest of Mosul, and second at Al-Shuada’a village (35 km) southwest of Mosul, this experiment aimed study of effect of Humic acid, and Seaweed algae on growth and forage yield of Sorghum (Sorghum bicolor L.).This experiment was carried out according to Split-plot in Randomized Complete Block Design (RCBD) with three replications, where the main plot for Seaweed Algae with three levels (0, 2, and 4 ml.L-1) (dissolved in water), while Humic acid with three levels was in sub-plot (0, 6, and 12 kg.ha-1).The most of important results can be summarized as follow: most of growth, and dry forage yield traits at Seaweed Algae (4 ml.L-1) in both locations, were superior of dry forage yield (13 tons.ha-1) at (4 ml.L-1) in second location. Humic acid (12 kg.ha-1) had highest values for all traits at both locations where (12.8, and 12.85 tons.ha-1) for both locations respectively.

Available Nutrient Status of Soil as Influenced by Combined Application of Humic Acid and Inorganic Nitrogen

A field experiment was carried out to study the influence of different levels of humic acid (10, 20, 30 kg ha-1) and inorganic N fertilizer viz., 100 % of recommended dose and 75 % of recommended dose on chemical properties of soil under direct sown rice at Agricultural college farm, Bapatla during 2019. The experiment was laid out in RBD with ten treatments replicated thrice with BPT-5204 variety of rice as test crop. Soil samples collected at tillering, panicle initiation and harvest stages of crop were analyzed for chemical properties like available N, P2O5, K2O, Sulphur and cationic micro-nutrients (Fe, Mn, Zn, Cu). Results indicated that increased availability of N, P2O5, K2O, Sulphur and cationic micro-nutrients (Fe, Mn, Zn, Cu) were observed with the treatment T6 involving 100% RDN and HA @ 30 kg ha-1.

The Effect of Humic Acid and Potassium Applications on The Yield and Yield Components in Chickpea (Cicer arietinum L.)

The study was conducted to determine effects of different levels of humic acid and potassium on the yield and some yield components in chickpea in 2017 in Mardin city. The experiment was laid out in a factorial randomised block design with three replications. The doses were used potassium (0, 10 and 20 kg da-1) and humic acid (0, 30 and 60 kg da-1) in this study. In the study were investigated the plant height, first pod height, branch number per plant, pod, seed number and per plant, biological yield, seed yield per unit, harvest index, 100-seed weight, protein ratio and potassium content in seed. The results of the study indicated that humic acid and potassium applications increased significantly the seed yield and yield components. The highest seed yield was obtained from 20 kg phosphorus da-1 + 60 kg humic acid da-1 application as 286.9 kg da-1.

Effect of Humic Acid on Tolerance indexes of Barley plant to Cadmium Toxicity

      This study was carried out to evaluate the effect of different levels of Humic acid (0, 400, 800 ppm) on tolerance index of barley plant to different levels (0, 25, 50 and 100 ppm) of Cadmium. The experiment was designed according factorial completely randomized design with three replications. The results revealed that the combination effect of Humic acid and Cadmium significantly increased the total dry weight, number of spikes and dry weight of straw, as well as in total dry weight of plant, cadmium tolerance was found by treatments HA0CD50, HA0CD10, HA400CD0, HA400CD25, HA400CD100, HA800CD50, HA800CD100. Cadmium significantly decreased the relative chlorophyll production rate (RCPR) of Barley plant,

Evaluation of brown trout (Salmo trutta fario) fillets’ shelf life: Fed with a humic supplemented diet

This research was designed to determine the shelf life of products obtained by using humic acid as a feed additive in trout culture. Accordingly, brown trouts (Salmo trutta fario) were fed with different levels of humic acid added feed for 90 days. At the end of the feeding trial, the chemical composition, mineral substance, color and texture analyzes were made in the obtained fillets. The shelf life of fillets was evaluated with physico-chemical [pH, Thiobarbituric Acid Reactive Substance (TBARS)], total volatile basic nitrogen (TVB-N)] and microbiological [psychrophilic bacteria, total mesophilic aerobic bacteria, lactic acid bacteria, Enterobacteriaceae, and Pseudomonas counts] parameters with 15 days of cold storage.It had been determined that humic acid is not effective in chemical composition, color and texture (p > 005), but has a significant effect at p < 0.05 level in mineral substance, pH, TBARS, TVB-N, and microbiological results. Although increases and decreases were determined in all analyzes’ values ​​during the storage period, it was determined that the 2% humic acid applied group gave relatively lower values ​​at the end of the storage period in the microbiological and physico-chemical analysis results.

Response of Zinnia Cultivars to Different Levels of Humic Acid

Response of Zinnia Cultivars to Different Levels of Humic Acid

EFFECT OF DROUGHT AND HUMIC ACID ON MORPHOLOGICAL TRAITS AND ESSENTIAL OIL CONTENT OF THYMUS KOTSCHYANUS

The study was conducted to investigate the effect of Humic Acid organic fertilizer on the performance of Thymus Kotschyanus populations under the influence of drought stress. This experiment was performed as a three-factor factorial in the form of a completely randomized design (CRD) for 5 replications (pots) in the greenhouse of Pardisan Research Station belonging to Qom Agricultural and Natural Resources Research and Training Center. Three factors include 5 top accessions of T. Kotschyanus (factor A), irrigation levels at 80% crop capacity (control), irrigation at 60% crop and irrigation capacity at 40% crop capacity (FC) (factor B); and different levels of Humic acid including 3 Levels of 0, 1500 and 3000 mg/l were dissolved in irrigation water twice after full establishment of the plants and twenty days after the first iteration (factor C). The results of trait variance analysis showed that there was a significant difference at the level of possible error of 1% or 5% between the top accessions of T. Kotschyanus and between different irrigation levels in terms of all traits under study. Effectiveness of accession × irrigation levels were also significant in most traits at the level of 1% or 5% probability of error. In other words, the behavior of different Thymus accessions at different irrigation levels was significantly different and the effect of irrigation levels on different irrigations was not similar. These results are consistent with the reports of many researchers on the effect of drought stress on morphological traits as well as increasing essential oil content in drought stress conditions in medicinal plants. Hassani et al. (2006) reported on the effect of different levels of water stress on growth, performance, and essential oil content of Dracocephalum moldavica. Many traits, such as aerial organ length, wet and dry weight of aerial organ were reduced in dry stress conditions, and the highest percentage of essential oil was obtained for 70% crop capa

Effect of Different Levels of Humic Acid and Mineral Fertilizers on Growth and Productivity of Sunflower

Two field experiments were conducted out at Itay EL-Baroud Agricultural Research Station to investigate the effect of different levels of humic acid and mineral fertilization alone or in combination on two sunflower cultivars, Sakha 53 and G102 during two summer seasons 2016 and 2017. The treatments were, i.e. T1 (100% mineral fertilizers + zero humic acid), T2 (75% mineral fertilizers + 2 litters of humic acid/feddan), T3 (50% mineral fertilizers + 2 litter of humic acid/feddan), T4 (50% mineral fertilizers + 1 litter of humic acid/feddan) and T5 (0% mineral fertilizers + 2 litter of humic acid/feddan), foliar application of humic was done on 25, 35 and 45 day after sowing (DAS). The experiments were designed in RCBD using split plot with three replications. The results indicated that highly significant difference were found between sunflower cultivars, also found between fertilization treatments during the two seasons, Sakha 53 recorded the best values for plant height, head diameter , seed yield/plant and seed yield/fad, while Giza 102 achieved desirable values for days to flowering and oil %. The treatments T1 and T2 exhibited the best results for most studied characters such as plant height, head diameter (cm), stem diameter (cm), no. of seeds/plant, 1000-seeds weight/plant and seed yield/fad with exception of oil % and physiological maturity date. Best value of benefit cost ratio was obtained by T1 and T2 among treatments and Sakha 53 compared to Giza 102.

Effect of Humic acid levels on fodder production of maize (Zea mays) varieties under agro-climatic conditions of Tandojam-Sindh Pakistan

In Pakistan, maize is the fourth largest grown crop after wheat, cotton, rice and is considered as fodder for livestock as well. There are various reasons for low productivity of this crop which includes low soil organic matter (O.M). Chemical fertilizers indiscriminate utilization disturbs the soil tithe and its chemical composition which caused in reduction plant yield. Hence to overcome the problem of this low fertility, humic acid is strongly recommended throughout the world. Hence and research experiment was conduct as student’s Agronomy experimental farm, at Sindh Agriculture University Tandojam, Pakistan during the year 2017 on humic acid levels effect on fodder production of maize (Zea Mays). The experiment was designed by following the randomize complete block design (RCBD) with net plot size 3 by 4 m (12 m.seq). The experiment comprises of the recommended dose of NPK and various levels of humic acid such as HA1 = Untreated, HA2 = 2 kg ha-1, HA3 = 3 kg ha-1 and HA4 = 4 kg ha-1. The results of our study showed that significant effect on different levels of humic acid on the different varieties of maize crop. The results revealed that the application of humic acid @4Kgha-1 gave maximum yield and better growth of maize varieties as compared to lower levels of humic acid application where as in varieties Akbar and Sadaf produced maximum fodder yield than variety Neelum in response to humic acid application. Keywords: Fodder production; Humic acid levels; Maize (Zea mays L.) http://dx.doi.org/10.19045/bspab.2019.80108

Soil Extractable Phosphorus Contents as Affected by Phosphatic Fertilizer Sources Applied with Different Levels of Humic Acid

Soil Extractable Phosphorus Contents as Affected by Phosphatic Fertilizer Sources Applied with Different Levels of Humic Acid

Effect of addition of different levels of humic acid to drinking water on productive and carcass characteristics of broiler chick

This experiment was carried out at the which poultry farm of Babylon to study the effect of adding humic acid to the drinking water on performance of Ross 308 broiler chicks . The experimented the period from 20/1/2017 to 5/3/2017of birds age , A total of 135 one day old chicks were used in this experimented , chicks were allocated randomly in to 3 treatments, 45 chicks for each treatment , each treatment was included 3 equal replicates, 15 chicks for each one. &#x0D; The treatments , were: -&#x0D; Treatment (T1) basal diet + fresh water without addition (Control group).&#x0D; Treatment(T2) basal diet + fresh water supplemented with Humic acids in ( 3.6 g/l liter water .&#x0D; Treatment(T3) basal diet + fresh water supplemented with Humic acids ( 7.8 g/l liter water .&#x0D; The results of this experiment indicated that supplemented of Humic acids in the fresh water during the period (1-6) week of the experiment , had a significant effect ) P≤0.05) on body weights rate of chicks and accumulative feed consumption , accumulative weights gain of the birds and significant effect) P≤0.05) of feed conversion rate as compared with the control treatment. Addition of humic acid has an significant effect of the birds ) P≤0.05) on the carcass traits of birds (The relative weight of the various carcass cuts and Internal organs ) in comparison to the birds of control treatment.

Growth, carcass traits, cecal microbial counts, and blood chemistry of meat-type quail fed diets supplemented with humic acid and black cumin seeds.

ObjectiveThe present study attempted to determine safe and sufficient growth promoters in poultry feeding.MethodsA total of 520 seven-day-old quail chicks were randomly allotted to eight treatment groups in a 4×2 factorial design experiment to evaluate the effect of different levels of humic acid (HA) and black cumin (BC) seed and their interactions on growth, carcass traits, gut microbes, and blood chemistry of growing quails. Quails were randomly distributed into 8 groups in a 4×2 factorial design, included 4 HA levels (0, 0.75, 1.5, and 2.25 g/kg diet) and 2 BC levels (0 or 5 g/ kg diet).ResultsIncreasing HA level associated with a gradual increase in final weight, feed intake and body weight gain along with an improvement in feed conversion ratio. Dietary addition of 5 g BC powder/kg diet gave similar results. The highest level of HA (2.25 g/kg diet) recorded the best values of carcass weight, breast yield, intestinal length, and intestinal weight comparing with the control and other HA levels. Total viable microbial counts decreased (p<0.05) with increasing levels of HA except the intermediate level (1.5 g/kg diet). The concentration of serum cholesterol and low density lipoprotein (excluding that 0.75 g HA) decreased (p<0.05) and high density lipoprotein increased (p = 0.034) along with increasing HA level. The interaction between the 2.25 g HA×5 g gave the best results regarding most studied parameters.ConclusionThese findings indicated that HA combined with BC could be used as effective growth promoters, with the recommended level being 2.25 g HA+5 g BC/kg of quail diet.

Effect of humic acid on the kinetics of phosphorus of triple super phosphate fertilizer and growth and yield of corn

Two experiments were conducted, the first laboratory experiment (incubation) was conducted to study the chemical Kinetics of phosphorous release, and the other was field experiment to study the effect of Triple super phosphate and different levels of humic acid in growth and yield of corn. Laboratory experiment was carried out to study the Kinetics of phosphorus release triple super phosphate with levels 0, 60, 80 and 100% P of recommended fertilizer dose and three levels of humic acids 0, 20, 40 Kg.h-1. After eight time of incubation, the available phosphorus was measured in the soil. The data were subjected to mathematical analysis using five kinetic equations. The field experiment was carried out in silty clay loam soil to study the available phosphorus added from triple super phosphate to soil with humic acids and their impact on growth of corn cultivar (fijer 1), using factorial experiment with design of randomized complete block, with three replicates, and two factors: four levels of triple super phosphate 40, 60, 80, and 100% P of recommended dose of fertilizer and three levels of humic acids 0, 20, 40 Kg h-1. Results of the laboratory experiment indicated that decreased concentration of available phosphorus release with the time for all levels of phosphate fertilizer. The addition of humic acids at the levels of 20 and 40 kg ha-1 increase available phosphorus for any time of incubation. Second order equation gave the highest determination coefficient and the lowest standard error, the half time of phosphorus disappearance increased with the increased level of humic acid, it increased from 35.71 days to 38.46 and 41.66 days for 20 and 40 kg h-1 levels respectively. Results of the field experiment showed a significant increase in plant height, dry weight, plant yield, weight of 300 grains and total grain yield with increased levels of phosphorus and humic acid added. A significant increase were obtained in plant height, dry weight, plant yield, weight of 300 grains, total grain yield with increasing levels of humic acids for about 4.9, 9.99, 10.6, 3.82 and 10.61% respectively by adding the level of 40 kg h-1 comparing with control treatment

Phenological traits of wheat response to different levels of humic acid and brassinolide

A field experiment was conducted to investigate phonological traits of wheat response to different levels of humic acid and brassinolide at New Developmental Farm The University of Agriculture, Peshawar during Rabi season 2009 -10. The wheat variety Saleem 2000 was sown. The design used was Randomized Complete Block Design (RCBD) with four replications in split plot arrangement. Humic acid was assigned to main plot whereas brassinolide was allotted to sub plot. Plot size of 3 x 3.5 m having 10 rows, 30 cm apart were used. Four levels of humic acid (0, 1, 2 and 4 kg ha) were applied at sowing times. Whereas 5 levels of brassinolide (0, 0.5, 1, 1.5 and 2 mg L) were sprayed in foliar form at the tillering stage. Application of 4 kg HA ha delayed days to heading (117.44). Increasing humic acid levels up to 2 kg ha delayed anthesis (124.18) days and maturity (156) days and produced taller (82.69) plants. Increasing brassinolide concentrations up to 2 mg L delayed days to heading (118.25days), anthesis (124.63days) and maturity (158days). Taller (89.56cm) plants were produced through the application of 2 mg BL. Increasing brassinolide concentration up to 2 mg L as combined with 2 kg HA ha delayed days to anthesis. Application of 2 kg HA ha enhanced wheat phenology and thus is recommended for wheat cultivation in the agro climatic conditions of Peshawar for improved phonological traits. Application of 2 mg BL improved wheat phenology and thus is recommended for wheat cultivation in the agro climatic conditions of Peshawar for better phonological traits.

Wheat response to different levels of humic acid and brassinolide

Wheat response to different levels of humic acid and brassinolide

Effects of humic acid, compost and phosphorus on growth characteristics of basil herb and concentration of micro elements in plant and soil

Organic matters are important soil components which have considerable effects on phytoavailability of nutrients and improvement of soil physical, chemical and biological properties. The increasing demand for medicinal plants necessitates extensive research on them for sustainable agricultural development. In order to assess the effects of different levels of humic acid, compost and phosphorus (P) on growth traits and some micronutrients’ uptake by basil medicinal plant (Ocimum basiilicum L.) a factorial experiment was conducted in 2011 using a completely randomized design with three replications. Treatments consisted of three levels of humic acid (0, 10 and 20 mg/kg of soil; H1, H2 and H3, respectively), three levels of urban waste compost (0, 5 and 10 ton/ha; C1, C2 and C3, respectively) and three levels of P (0, 10 and 20 mg/kg of soil, as triple super phosphate, P1, P2 and P3, respectively). After harvesting the plants, parameters such as dry weight of aerial parts, number of lateral branches, plant height and concentration and uptake of Fe, Mn, Cu and Zn in aerial parts were measured. Results showed that the effects of humic acid (at H2 and H3 levels) and compost (at C2 and C3 levels) were significant on height, number of lateral branches and shoot dry weight, as compared to control; but these two levels did not have significant difference. Interaction of humic acid and compost, along with P, on plant height, number of lateral branches and dry weight of shoots was not significant. Application of humic acid and compost increased significantly the concentration of Fe, Mn, Zn and Cu in plant shoots, and availability of Fe, Mn, Zn and Cu in soil was increased with the application of organic fertilizers. Interaction of humic acid and compost on concentration of Fe, Mn, Zn and Cu in plant and soil was significant. In interaction of humic acid and compost with P, the application of P reduced concentration of Fe, Mn, Zn and Cu in plant and their availability in soil. But, study of these interactions showed that application of organic fertilizers can somehow improve the negative effects of P on availability of these elements, and therefore, application of these fertilizers is recommended for improving soil chemical conditions and enhancement of growth traits of basil plant.