scholarly journals Studies of the effects of N fertilizers and Microbion UNC biofertilizer on microelement content of horseradish (Armoracia macrocarpa)

2010 ◽  
pp. 41-45
Author(s):  
Andrea Balla Kovács

A field experiment on calcareous chernozem soil was performed to study the effects of different N and bacterial fertilizers on the nutrient content of horseradish (Armoracia macrocarpa). In the experiment the trials were arranged in a randomized block design with three replications, applying three levels of NH4NO3 and different N fertilizers, namely ammonium-nitrate, urea and calcium-nitrate, with or without application of Microbion UNC biofertilizer.In the present paper the changes and distribution of manganese, zinc and copper contents of the horseradish plant are summarized by theeffect of different treatments.The Mn content of leaves were higher in all cases than those of roots, but Zn mainly accumulated in the roots. The distribution of copper within the horseradish plant was more equalized than that of Zn and Mn. Different N fertilizers and increasing doses of ammonium-nitrate had effects mainly on the microelement contents of leaves. The highest Mn contents of plant were measured in treatments of Ca(NO3)2 and Ca(NO3)2+Microbion. The lowest ammonium nitrate dose (N1) decreased the Mn content of leaves compared to control, but further doses(N2, N3) did not alter these values any longer. Microbion UNC biofertilizer did not have any effect on the Mn content of roots, but we measured higher Mn in leaves in some combined treatments. Ca(NO3)2 increased the zinc content in leaves and roots in a noticable manner. With the increasing of NH4NO3 doses, the Zn content of leaves and roots augmented significantly. Neither N fertilizers (or the increasing doses of NH4NO3) nor the biofertilizer application influenced the Cu content of horseradish plant. N fertilizers had higher effects on the microelement content of horseradish, the biofertilizer’s effect was smaller and was not the same in every treatment.

2010 ◽  
pp. 134-140
Author(s):  
Andrea Balla Kovács ◽  
Anita Szabó ◽  
Emese Bartáné Szabó

A field experiment was conducted to examine the effects of different nitrogen fertilizers in combination with bacterial fertilizer onnutrient uptake of horseradish and plant available nutrients of the soil. Three different N fertilizers, ammonium-nitrate, urea and calciumnitrate(116 kg ha-1 N) in combination with Microbion UNC bacterial fertilizer (2 kg ha-1) were applied as treatments in a randomizedcomplete block design in three replications. In this paper we presented the results of soil measurements. The soil of the experimental areawas chernozem with medium sufficiency level of N and P and poor level of K.Our main results:The amount of 0.01M CaCl2 soluble inorganic nitrogen fractions, NO3--N and NH4+-N and also the quantity of soluble organic-N werealmost the same in the soil. N fertilizers significantly increased all the soluble N fractions. The amount of NO3--N increased to the greatestextent and the increase of organic N was the slightest. We measured the largest CaCl2 soluble NO3- -N and total-N contents in the plotstreated with ammonium-nitrate, the largest NH4+-N in the plots treated with calcium-nitrate and the largest organic-N fraction in plotstreated with urea.Bacterial inoculation also increased both soluble inorganic nitrogen forms and also total-N content of soil compared to the control. Inthe case of combined (artificial and bacterial fertilizer) treatments we measured lower NO3--N, organic-N and total-N compared to thevalues of plots having only nitrogen fertilizer treatments. On the contrary in the plots with combined treatments the CaCl2 soluble NH4+-Ncontent of soil in more cases were higher than that of values with artificial fertilizer treatment.As a function of calcium-nitrate application increased AL-P2O5 and AL-K2O values were measured compared to control. MicrobionUNC supplement of calcium nitrate yielded also increase in AL-P2O5 and AL-K2O values, till then supplement of ammonium-nitrate fertilizeryielded a decrease in these values compared to the control.All nitrogen fertilizers resulted in a significant decrease in AL-Mg content of soil compared to the control. Nevertheless bacterialfertilizer increased AL-Mg values in any cases.


Author(s):  
Besmellah Muradi ◽  
Anil Kumar Godara

Aims: To study the effect of different micronutrients and number of foliar spray on fruit quality and leaf nutrient content of peach. Study Design: The experiment comprised of seven treatments and conducted on seven years old plants in Randomized Block Design with three replications. Place and Duration of Study: The experiment was conducted at the experimental orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2018. Methodology: The treatments included in the study consisted of three micro-nutrients [T1- ZnSO4 @ 0.2%, T2- ZnSO4 @ 0.3%, T3- FeSO4 @ 0.2%, T4- FeSO4 @ 0.3%, T5- Boric acid @ 0.1%, T6- Boric acid @ 0.2%, T7- Control (water spray)] each applied as foliar spray at different concentration as single and double spray. Results: The results showed that foliar spray of micronutrients significantly improved quality and leaf nutrient status in peach cv. Shan-e-Punjab. The foliar spray of FeSO4 @ 0.2% (T3) found to be the best treatment with respect to TSS (11.06%), ascorbic acid (8.18 mg/100 g pulp) and leaf iron content (345.51 ppm). The highest TSS: ratio (23.88), leaf zinc content (35.42 ppm) and lowest acidic fruits (0.45%) was observed from the plants sprayed with T1 (ZnSO4 @ 0.2%), whereas, highest leaf boron content (91.02 ppm) was recorded with T6 (Boric acid @ 0.2%). Double foliar spray of micronutrients (Fe, Zn and B) at first week of March + April significantly TSS, TSS: acidity, ascorbic acid, leaf zinc, iron, and boron content and reduced acidity fruits then single foliar spray in first week of March. Conclusion: The foliar spray of ZnSO4 @ 0.2% (T1) proved to be best treatment in terms of quality. A double spray of micronutrients (Fe, Zn and B) significantly increased total soluble solids, TSS: acidity, ascorbic acid, leaf (zinc, iron, and boron) content and reduced fruit acidity as compared to single spray.


HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1086B-1086 ◽  
Author(s):  
Juan Ayala ◽  
Ana-Maria Castillo ◽  
Maria-Teresa Colinas ◽  
Joel Pineda

The effect of foliar application of calcium, boron, and molybdenum on macronutrient and micronutrient content of poinsettia (Euphorbia pulcherrima) plants cv. Supjibi was evaluated. Plants were grown under greenhouse conditions in 7-inch containers. Fourteen treatments were applied (10 replicates per treatment); these were formed by three calcium levels (calcium nitrate at 300, 400, and 500 mg·L-1), boron (borax at 0.2, 0.5, and 0.8 mg·L-1), and molybdenum (sodium molybdate at 0.3, 0.4, and 0.5 mg·L-1) and their combinations. Plants were spayed three times during the growing period: 51, 72, and 94 days after transplant. Plants were covered with black polyethylene from 5 pm to 7 am every day in order to induce bract development. N, P, K, Ca, Mg, B, Mo, Mn, Fe, Zn, and Cu content was evaluated 2 weeks after finishing the induction period. The treatment with a combination of Ca+Mo increased by 26% the N content compared with the control. Application of B+Mo, and Ca+B decreased the P content by 32% and 28%, respectively. Treatment with Ca+B+Mo increased foliar K by 46%. B+Mo increased 72.5% Ca content, 38% Mg, and there was about 75 times more Cu than in the control (2.20 vs. 166.7 mg·L-1). Treatments with Ca and B decreased Mn content by 32.7%. Ca (500 mg·L-1) decreased B content by 76%. Treatments did not have any significance on Mo, Fe, and Zn content. As a general conclusion it can be said that foliar applications of Ca, B, Mo, alone or in certain combinations, affected significantly the content of foliar nutrients due to specific nutrient interactions in plants.


1971 ◽  
Vol 77 (3) ◽  
pp. 549-551 ◽  
Author(s):  
J. Bolton

SUMMARYThe pH of soil cropped with ryegrass increased with calcium nitrate as a fertilizer and decreased with ammonium nitrate, especially in the mid-range of pH. Changes above pH 7·2 and below pH 4·5 were small.Yields of 4 cuts of grass given either N-fertilizer were similar over a pH range (in 0·01M-CaCl2) from 4·3 to 7·4. However, the composition of the grass and nutrient uptakes were affected by both soil pH and form of N-fertilizer.


2018 ◽  
Vol 64 (No. 1) ◽  
pp. 26-31 ◽  
Author(s):  
Holečková Zlata ◽  
Kulhánek Martin ◽  
Hakl Josef ◽  
Balík Jiří

The aim of this research is to estimate the influence of a bioeffector (BE) application on dry matter yield and nutrient content (P, K, Ca, Mg, S) in maize (Zea mays L.). Between 2014 and 2016, a field experiment with silage maize as a testing plant was realized on sandy loam Cambisol. The application of Pseudomonas sp. in combination with phosphorus (rock phosphate (RP) or triple superphosphate (TSP)) and nitrogen fertilizers (ammonium nitrate with urea, ammonium nitrate with limestone, calcium nitrate or ammonium sulfate with a nitrification inhibitor) and with different application strategies was studied. The effects of a bioeffector application on the increase of dry matter yields were not confirmed. An important influence on the BE application and its activity was probably those of soil and site conditions and competition of the researched microorganisms with other present microorganisms. Higher yields of dry matter were shown in treatments where P fertilizers were applied. There was almost no difference between the application of RP and TSP. This could be caused by the fact that the soil had a slightly acidic pH value. In this case, the RP showed similar results to the TSP. The application of bioeffector significantly increased Mg, K and S contents in maize above-ground biomass. An increase of the Ca content was almost significant and a tendency towards a higher average content of phosphorus was also recorded.


2015 ◽  
Vol 21 (2) ◽  
pp. 185
Author(s):  
Fernanda Helena Souza Santos ◽  
Elka Fabiana Aparecida Almeida ◽  
Jussara Ellen Morais Frazão ◽  
Simone Novaes Reis ◽  
Ângela Maria Pereira Nascimento

One of the reasons for the predatory extraction of bromeliads is the lack of information about the techniques of growing these plants, mainly in relation to fertilization. This work aimed to evaluate the effect of nitrogen on substrate in vegetative growth and nutrient content in leaves of bromeliads Nidularium fulgens. Seedlings were submitted to six levels of nitrogen: 0, 100, 200, 300, 400 and 500 mg/dm3. The experimental design used was the randomized block design with six treatments, five replications and three plants per plot. Plants were evaluated on the number of leaves, height, diameter of base, dry matter and foliar mineral composition. The results showed that there was a linear increase of the height, number of leaves and foliar dry matter with higher nitrogen rates. The increasing levels of nitrogen gave an increase in foliar nitrogen and manganese and reduce leaf content of calcium and copper. Nitrogen rates applied did not influence the contents of P, K, S, B, Zn and Mg. These results suggest that the addition of nitrogen fertilizer at 500 mg/dm3 in Nidularium fulgens provides greater vegetative development, increases the leaf N and Mn content and reduces the content of Ca and Cu.


Author(s):  
E. Ajay Kumar ◽  
K. Surekha ◽  
K. Bhanu Rekha ◽  
S. Harish Kumar Sharma

A field experiment was conducted during Kharif 2018 at College Farm, College of Agriculture, PJTSAU to evaluate the effect of various sources of zinc and iron on dry matter yield, nutrient content and nutrient uptake of finger millet. This experiment was conducted with randomized block design with 14 treatments and replicated thrice.The results revealed that application of different Zinc and iron sources at different rates significantly influenced the dry matter yield, nutrient content and nutrient uptake of finger millet. The highest dry matter production was reported with T10 - application of  RDF (60:40:30 kg N,P2O5 and K2O kg ha-1)+ foliar application of FeSO4 @ 0.5% twice at 30 and 60 DAS at all the stages followed by T14- (RDF+ foliar application of Fe-humate @ 0.25% twice at 30 and 60 DAS). Nutrient content decreased and Nutrient uptake (Nitrogen, phosphorous, potassium, iron and zinc) by the crop steadily increased with advancement in age of the crop upto harvest. The treatment receiving (T10) RDF+ foliar spray of FeSO4 @ 0.5% twice at 30 and 60 DAS recorded the highest nutrient content and (N, P, K & Fe) uptake by crop at 30DAS, 60 DAS and at harvest followed by (T14) RDF+ foliar application of Fe-humate @ 0.25% twice at 30 and 60 DAS. While, the Zinc content and uptake by crop at 30 DAS, 60 DAS and at harvest was highest with the treatment receiving (T8) -RDF + Zn-Humate foliar spray @ 0.25% twice at 30 and 60 days after sowing and was followed by treatment T7-RDF + Zn-Humate soil application @ 42 Kg ha-1.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 516b-516
Author(s):  
James N. McCrimmon

Zoysiagrass has great potential for use in the Gulf Coast states as a turfgrass. There has been minimal research on the nitrogen (N) and potassium (K) fertility response of zoysiagrass and the effect on turf color, quality, and nutrient content. The objective of this study was to evaluate the effects of N and K fertility on zoysiagrass. A study was conducted on three zoysiagrasses: Zoysia japonica × Z. tenuifolia Willd. ex Trin. (`Emerald'); Z. japonica Steud. (`Meyer'); and Z. matrella. The N and K treatment combinations consisted of high (H) and low (L) rates of N and K at the following levels: N levels of 454 and 227 g N/92.9 m2 per month and K levels of 454 and 227 g N/92.9 m2 per month. The treatment combinations were (N and K): HH, HL, LH, and LL and were applied in two split applications monthly from July through November. The study was a randomized complete-block design with three replications. All plots received two applications of a micronutrient fertilizer (late June and August), were irrigated as needed, and maintained at a height of 3.8 cm. Color, density, texture, uniformity, and quality were determined visually for each month. Plant tissue samples were collected (September) and analyzed for macronutrient and micronutrient contents. There were significant differences for color, density, and quality in the following months: September (color and density); October (quality); and November (color and quality). There were differences in leaf texture for all months. There were significant differences for N, magnesium (Mg), and K contents but there were no differences for any micronutrient. This study indicated that all three zoysiagrasses provided acceptable color and quality during the summer and fall, and that N and K rates affected N, K, and Mg contents in the plant.


1984 ◽  
Vol 49 (5) ◽  
pp. 1109-1115
Author(s):  
Jindřich Novák ◽  
Zdeněk Kodejš ◽  
Ivo Sláma

The density, viscosity, and electrical conductivity of highly concentrated solutions of ammonium nitrate in dimethyl sulphoxide have been determined over the temperature range 10-60 °C and the concentration range 7-50 mol% of the salt. The variations in the quantities as a function of temperature and concentration have been correlated by empirical equations. A comparison is made between the transport properties for the present system, aqueous solutions of ammonium nitrate, and calcium nitrate solutions in dimethyl sulphoxide.


2020 ◽  
pp. 1-21
Author(s):  
Smilja Lambert ◽  
Hussin bin Purung ◽  
Syawaluddin ◽  
Peter McMahon

Summary Cocoa (Theobroma cacao) farmers in Sulawesi, Indonesia typically use subsidised, ammonium-based rice fertilisers that in combination with poor agricultural practices have resulted in soil acidification, loss of organic matter, aluminium toxicity and lower soil fertility. As a result, these soils are only marginally appropriate for replanting cocoa to boost production. A field experiment was performed to test alternative soil amendments for successful replanting of cocoa on these deficient soils. In a trial with a randomised block design, 6-month old seedlings, top-grafted with the local MCC02 clone, were planted under light Gliricidia sepium shade and after 3 months treated quarterly with two options of mineral fertilisers: either a customised fertiliser, consisting of Nitrabor (a combination of calcium nitrate and boron), dolomite, rock phosphate and KCl or a NPK/urea mix used by farmers, each supplied with or without ‘micronutrient’ rock salt, organic fertiliser and beneficial microorganisms or their culture medium, a mixture of chitin and amino acids (a total of 20 treatments). Over a 4-year period, the marginal mean rates of stem diameter increment and flowering score were higher in customised fertiliser than NPK/urea treatments. The average growth rate was highest in the first year and was increased by supplying organic fertiliser. A significant correlation (r = 0.22, p < 0.05) occurred between growth and available P, but concentrations of available P were higher in the NPK/urea plots, which also had lower mean growth rates. Combined supply of organic fertiliser and microbes increased available P, as well as growth rates, in both the customised and NPK/urea treatments. In contrast, NPK/urea-treated plots without these amendments demonstrated very low growth rates. The customised formulation was more effective with or without added organic fertiliser or inoculated microbes. Micronutrient supply stimulated flowering. Growth rates in trees supplied with NPK/urea were also promoted by micronutrients. Leaf flush production occurred in regular cycles and was unaffected by the nutrient amendments. After 3 years, the customised and organic fertiliser application increased soil pH and exchangeable Ca and Mg concentrations, although they remained below recommended levels for cocoa production. These treatments had little impact on soil C content (about 1.3%) which was also deficient. Exchangeable Al and total Zn concentrations were higher in soils amended with NPK/urea. The results of the trial provide evidence that utilisation of organic fertiliser in combination with customised nitrate-based formulations improves cocoa establishment, growth and soil properties and should be recommended as a replacement for the NPK/urea fertilisers traditionally used by farmers.


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