Effect Of Foliar Fertilization Research Articles

Influence of carrier water pH, foliar fertilizer, and ammonium sulfate on 2,4-D and 2,4-D plus glyphosate efficacy

AbstractCarrier water pH is an important factor for enhancing herbicide efficacy. Coapplying agrochemical products with the herbicide might save time and resources; however, the negative effect of foliar fertilizers on herbicide efficacy should be thoroughly evaluated. In greenhouse studies, the effect of carrier water pH (4, 6.5, and 9), foliar fertilizer (zinc [Zn], manganese [Mn], or without fertilizer), and ammonium sulfate (AMS) at 0% or 2.5% vol/vol was evaluated on 2,4-D and premixed 2,4-D plus glyphosate efficacy for giant ragweed, horseweed, and Palmer amaranth control. In addition, a field study was conducted to evaluate the effect of carrier water pH (4, 6.5, and 9); and Zn or Mn foliar fertilizer on premixed 2,4-D plus glyphosate efficacy for horseweed and Palmer amaranth control. In the greenhouse study, 2,4-D and premixed 2,4-D plus glyphosate provided 5% greater weed control at acidic compared with alkaline carrier water pH. Coapplied Mn foliar fertilizer reduced 2,4-D and premixed 2,4-D plus glyphosate efficacy at least 5% for weed control. Addition of AMS enhanced 2,4-D and premixed 2,4-D plus glyphosate efficacy at least 6% for giant ragweed, horseweed, and Palmer amaranth control. In the field study, few significant differences occurred between coapplied Zn or Mn foliar fertilizer for any treatment variables. Therefore, carrier water pH, coapplied foliar fertilizer, and water-conditioning adjuvants have potential to influence herbicide performance. However, weed species could play a role in the differential response of these factors on herbicide efficacy.

Effect of foliar fertilization with zinc and manganese sulfate on yield, dry matter accumulation, and zinc and manganese contents in leaf and seed of chickpea (Cicer arietinum)

Deciphering the phylogenetic relationships among rhizobia nodulating chickpea: A ReviewPooja Suneja, Surjit Singh Dudeja, Pushpa Dahiya

The dependence of barley spike length on the effects of foliar fertilization by micro fertilizers

The dependence of barley spike length on the effects of foliar fertilization by micro fertilizers

Effect of foliar fertilization at early reproductive stage on growth, productivity and profitability of soybean [Glycine max (L.) Merrill

A field experiment was conducted at research farm of PAU, Ludhiana, Punjab (India) for consecutive three years (2015–2017) to study the effect of foliar application of different nutrients at early reproductive stage (R3 stage) on growth, productivity and profitability of soybean. The experiment comprised of eight treatments of foliar nutrient application at pod initiation stage along with the recommended dose of fertilizer (RDF). The treatments were: water spray, urea 2% spray, diammonium phosphate (DAP) 2% spray, muriate of potash (MOP) 0.5% spray, NPK 19:19:19 (N:P2O5:K2O) 2% spray, molybdenum 0.1% spray, zinc chelated 0.5% spray and no spray (control). Results revealed that different treatments of foliar nutrients did not significantly influence the growth attributes; however, foliar application of 2% urea yielded significantly higher number of pods plant−1 than other treatments and was at par with RDF + 0.5% MOP. Foliar application of 2% urea also gave the highest seed yield, gross returns and net returns and was statistically at par with spray of 0.5% MOP, 2% DAP, 0.5% chelated zinc and 0.1% molybdenum (except net returns). It may be concluded that foliar application of 2% urea at pod initiation stage provides highest seed yield, gross returns, net returns and B:C ratio.

Effect of foliar fertilization of microelements on highbush blueberry (Vaccinium corumbosum L.) nutrient status and yield components in cutover peatlands

Effect of foliar fertilization of microelements on highbush blueberry (Vaccinium corumbosum L.) nutrient status and yield components in cutover peatlands

Evaluating the Potential Effect of Foliar Fertilizers on Cowpea Growth and Yield

Evaluating the Potential Effect of Foliar Fertilizers on Cowpea Growth and Yield

Bacterial population dynamics after foliar fertilization of almond leaves

To describe the effects of foliar fertilizer application on the bacterial populations of almond tree leaves. We applied a commercially available foliar fertilizer or a water control onto the leaves of almond trees and collected leaves after 1, 7, 14 and 56 days and examined their bacterial populations by 16S rRNA gene sequence analysis. After 1 day, we observed significant differences in 3 of the 4 predominant bacterial phyla, and 5 of the 13 predominant bacterial families. After 7days, we observed significant differences in all of the predominant phyla, and 8 of the 13 predominant families. After 14 days, the number of significant differences decreased, and after 56 days only 2 of the 13 predominant families differed significantly. Foliar fertilization significantly altered the bacterial population structure of almond leaves as compared to the water control. While most of the observed perturbation was transient, significant differences remained after 56 days. This is the first report describing the effects of foliar fertilization on the bacterial populations of almond leaves and provides new insights as to how this process alters the leaf bacterial population structure.

Effects of foliar Fe and Zn fertilizers on storage root Fe, Zn, and beta-carotene content of sweet potato (Ipomoea batatas L.)

Foliar sprays of iron (Fe) and zinc (Zn) fertilizers are effective in improving Fe and Zn concentrations in sweet potato. The objective of this experiment was to examine the effects of foliar fertilization with Fe and Zn in association with amino acids (AA) on Fe and Zn biofortification and the nutritional quality of sweet potato under both greenhouse and field conditions. Compared with treatment CK, foliar Fe, Zn, and Fe-Zn fertilizer applications could biofortify Fe and Zn concentrations and other nutrients in sweet potato to different extents. However, when 0.4% (wt/vol) AA was added to Fe-Zn fertilizer, the average Fe and Zn concentrations were increased by 70.2% and 59.8% under greenhouse conditions, and 52.9% and 43.7% under field conditions, respectively. The Fe-Zn-AA fertilizer application also resulted in incremental increases in root yield and beta-carotene content. This research identified some useful foliar fertilizers for accelerating Fe and Zn accumulation in selected sweet potato cultivars.

The effect of foliar fertilization with sulphur on changes in mineral composition of leaves and fruits of Malus × domestica ‘Gloster’

The two-year field trial was focused on the effect of foliar fertilization with different forms of sulphur on the concentration of mineral elements in leaves (N, P, K, Ca, Mg, S and B) and fruits (S, K, Mg, Ca and B) of Malus × domestica 'Gloster'. The treatments were as follows: 1) unfertilized control, 2) foliar application of elemental sulphur with boron (Sulfika SB-C), 3) foliar application of magnesium sulphate (EPSO Top), 4) foliar fertilization with thiosulphates with potassium (SK sol), and 5) foliar application of fungicide with elemental sulphur (Kumulus). The same dose of Sulphur, i.e., 3.2 kg S ha-1 per vegetation, was applied in each treatment (except the control). Results obtained within two years (2014-2015) show the highest concentration of sulphur in leaves in treatment 4 (0.190% in dry matter) in comparison with treatments 2 (0.164% in dry matter) and 3 (0.175% in dry matter). A similar trend was observed in fruits, however the differences between the treatments were not significant. The concentration of sulphur in leaves was followed by the concentration of total nitrogen in 2014. It was significantly higher in treatment 4 (2.585% in dry matter) than in treatments 2 (2.390% in dry matter) and 3 (2.373% in dry matter). Sulfika SB-C significantly increased the concentration of boron in leaves and fruits and seems to be a good source of this element.

Assessing the Absorption Degree of the Nitrogen Forms from Soil into Plant Using the 15N Isotope as a Marker

Abstract The aim of the study was to assess the absorbtion degree of different nitrogen forms (ammonium, nitric, amidic) from soil into the plant by using nuclear techniques and 15N isotope as a tracer. In the same time, the effect of foliar fertilization on increasing the efficiency of nitrogen use by biostimulating the plant up-take was highlighted. Urea and ammonium nitrate labeled with 15N isotope (10% from total nitrogen content of the fertilizers being covered by 15N isotope) were incorporated in soil. In order to highlight the efficiency of foliar fertilization, fertilizers having NPK matrix with mezo and microelements and proteic organic compounds (animal and vegetal) were designed and obtained. The effects of experimental treatments on isotopic indicators (15N/14N isotopic rate, δ 15N isotopic accumulation degree, 15N isotope export, absorbtion degree of 15N isotope) from plant were assessed. The tested plant was maize (Cortes hybrid). The values obtained were statistically analyzed by using variance analyze, with two factors, Duncan test of multiple comparison, multiple comparison threshold α= 0.05. The results of agrochemical testing showed that the absorbtion degree of 15N isotope from soil into maize plant was highest for the amidic (N-NH2) form of the nitrogen comparing with the other forms (N-NO3, N-NH4).

Watermelon fruit production and characterization affected by molybdenum (Mo) and other micronutrient fertilization

Micronutrients are essential for the development of plants and may affect the quantity and quality of the products of interest. This study aimed to evaluate the effects of foliar fertilization with molybdenum and other micronutrient on 'Olimpia' watermelon fruit yield and quality. The experiment was carried out following a randomized block design, with treatments in a 4 x 2 factorial scheme, for molybdenum doses (0, 15, 30, and 60 g Mo ha-1) and Kit presence or absence, with four replications. The number of fruits per plant, yield per plant, commercial productivity, average fruit mass, longitudinal and transverse diameters, peel thickness, and pulp yield were evaluated. Molybdenum foliar fertilization increased the yield per plant and the fruit diameters, with the best results at dose of 30 g Mo ha-1. The Kit promoted higher productivity per plant (25.7%), fruits with higher pulp yield (5.3%) and lower peel thickness (11.07%). Joint molybdenum and Kit application increased watermelon fruit pulp yield by 5.7% at 30 g Mo ha-1, and up 8.4% at higher doses. Foliar fertilization with 30 g Mo ha-1 and other micronutrients improve the 'Ol mpia' watermelon fruit yield and quality being recommended to producers.

Integrated effect of nutrients from a recirculation aquaponic system and foliar nutrition on the yield of tomatoes Solanum lycopersicum L. and Solanum pimpinellifolium.

The objective of this study was to evaluate the potential of tomato plants to efficiently use the nitrogen (N) of a recirculation aquaponic system (RAS) and to evaluate the effects of foliar fertilization as a complement to the water nutrition on the growth of the two tomato cultivars. The significant effect of six macro- and seven micronutrients was evaluated on the plant growth and on the fruit yield. Two experiments were performed in a nutrient film aquaponic unit. The first experiment was designed to study the effects of foliar fertilization on the seedlings of two tomato cultivars Costoluto Genovese (CG) (Solanum lycopersicum L.) and Currant tomato (Ct) (Solanum pimpinellifolium) with 8% of weekly water exchange (WE8%-RAS). The foliar fertilizer was formulated with N restriction in the last 11weeks (TF1). In the second experiment, two other foliar fertilization treatments (TF2 and TF3) were applied with a concentration of nutrients twice and triple that in TF1, but with a lower proportion of NPK ratio. These treatments were tested on the cultivar CG in a RAS with zero water exchange (WE0%-RAS). The data from the 1st experiment showed a positive effect of the foliar fertilization on the yield of both cultivars. The fertilization markedly influenced the dry matter weight of the CG; however, this effect was not observed in the Ct. The root length of both cultivars was positively influenced by the P content, whereas the plant height was affected by the excess of Co and S. According to the results from the 2nd experiment, the TF2 plants had the highest number of fruits with a high mean weight. The system was efficient in utilizing N from fish tank; the water K favored the yield of the CG fruit and the foliar K favored the growth of the TF2 plants. With a decrease in the foliar N, the CG plants were able to absorb 27.5% of the NO3- and 7.06% of total ammonia nitrogen from water. The absolute and relative growth rate of Nile tilapia was not affected by the rate of water exchange. Fulton's condition factor of the total length and weight curve indicated that fish from WE8%-RAS had wider bodies than the fish from WE0%-RAS at the same length range. Nitrate and P in the final effluent were lower than the maximum reference values allowed for the discharged water.

Effects of foliar fertilization of a biostimulant obtained from chicken feathers on maize yield

Abstract Due to the important contribution that it makes to human nutrition, maize is one of the most widely-consumed cereals in the world. There is, therefore, high demand for fertilizers that will maintain maize production at both high yield and quality levels. The objective of this work was to study the effect of foliar fertilization using a biostimulant, obtained by enzymatic hydrolysis from chicken feathers, on the productivity and quality of maize crops (Zea mays, L. cv PR32W86 Pioneer), located in Trujillanos (Extremadura, Spain), over two consecutive seasons. Foliar biostimulant/biofertilizer was applied three times each season and at two rates (3.6 and 7.2 l ha−1). At the higher rate and for both seasons, foliar fertilization significantly increased the leaf concentrations of macro- and micronutrients, while grain protein content and yield increased by 26% and 14%. These results suggest that the foliar use of this biostimulant could be of great interest to the farmer for improving both maize crop yield and quality.

Effect of foliar fertilization on growth and yield attributes of garlic

Effect of foliar fertilization on growth and yield attributes of garlic

Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea

At the Experimental Farm of Faculty of Agriculture, El-Mansoura University, Egypt, a field experiment was carried out, to investigate the effect of zinc and iron individually or mixed as foliar application on cowpea plant growth, chemical composition, yield and its components as well as availability of nutrients in the soil, all that under phosphorus application effect. The experiment was laid out in split plot design with three replicates, assigning twelve treatments consisting of three levels of phosphorus (50, 100 and 150% from recommended dose) as main plot, and four levels of micronutrients foliarly (without, Zn, Fe and Zn+Fe) as sub plot. As for the effect of P-fertilization, the results show that all treatments significantly increased vegetative growth (plant height (cm), no. of branches/plant, no. of leaves/plant), yield and its components (No. of pods/plant, No. of seed/pod, 100 seed weight g and Seed yield Kg/fed.) as well as chemical (N, P, K, Zn and Fe) and quality composition (chlorophyll content, c.protien, T. carbohydraties and C. fiber.). These effects were more obvious especially at higher concentrations of these treatments 150% RD except chlorophyll content, quality parameters with 100% RD. The highest mean values of available P, Zn and Fe in the soil were recorded for the plants treated with P-fertilization at the rate of 100% from recommended dose, whereas the lowest values of available N and K were realized for the same treatment. On the other hand, foliar application with micronutrient has a significant effect on cowpea growth. The highest values of parameters observed with the mix of (Zn+Fe) comparing with the untreated plant. Moreover, the mix of micronutrient (Zn+Fe) recorded the highest values of available P, Zn and Fe, whereas the highest values of available N and K were recorder with the untreated plant. The interaction effect between P fertilization and micro nutrients show a promotive effect on growth parameters with using mix of Zn+Fe. The highest mean values of parameters was recorded under 150% P from RD, whereas the highest mean values of chlorophyll content, quality parameters and available P, Zn and Fe recorded with 100% P from RD and the lowest values of available N and K were realized for the same treatment.

Yield and Mineral Content of Hydroponically Grown Mini-Cucumber (Cucumis sativus L.) as Affected by Reduced Nutrient Concentration and Foliar Fertilizer Application

Nutrient application is one of the major inputs required for hydroponic production of cucumbers. Reduced nutrient solution concentration with supplementary foliar fertilizer application may maintain yield and quality of mini-cucumber, while decreasing the production costs. An experiment was conducted to determine the effect of foliar fertilizer in combination with reduced nutrient concentrations on the yield and quality of hydroponically grown mini-cucumber in a plastic tunnel. Mini-cucumber plants were grown in sawdust, fertigated with nutrient solutions containing 100% (control), 75%, 50%, or 25% of the recommended nutrient concentration (NC) and two foliar fertilizer applications (no foliar and foliar application). The highest fresh and dry weight of mini-cucumber plants were obtained with 75% and 100% NC and decreased with 50% to 25% NC application. The number of marketable fruit and marketable yield on mini-cucumbers increased with 75% to 100% NC, followed by 50% NC, as compared with 25% NC. Deformed fruit were significantly lower at 25% NC than at 50%, 75%, and 100% NC. Foliar fertilizer application did not have an effect on mini-cucumber yield, but reduced the yellowing of fruit. Fruit mineral content (P, Fe, and Mn) was significantly improved by 100% NC. Improvement in yield at 75% and 100% NC was as a result of improved plant height, leaf chlorophyll content, plant fresh and dry weight, and the increase in nutrient uptake of N, P, K, and Mn, which was evident in the analysis of cucumber leaves. The reduced NC of 75% can maintain yield and quality of mini-cucumbers, whereas the application of foliar fertilizer had a limited effect.

Investigation of Foliar Fertilization in Maize Production

AbstractThe experiment was designed to study the effect of foliar fertilisation on the yield and some generative factors of maize in 2016. It was set on the territory of SZTE Tangazdaság Ltd in Hódmezővásárhely meadow chernozem soil. Three different foliar fertilizer products were applied in three replication randomised small plot experiment. The products were sprayed out individually and combined with each other as well, so there were six treatments and the control. In 2016 the amount of precipitation in the vegetation period of maize was higher than the average by 23.7 mm. Therefore this year was favourable for maize production. The data obtained during the experiment were processed by single factor variant analysis. Owing to the favourable dispersion of rainfall in the vegetative period of maize, the yields were relatively high. The average yield harvested from the control plots was 11.37 t/ha, and that of the treated parcels ranged from 11.61 and 12.86 t/ha. The foliar fertilizer products and their combinations increased the yield of maize, but this growing was not significant. By the using of foliar fertilization the generative factors of maize did not change significantly.

Effect of foliar fertilization on flowering ofOlea europaeaL. ‘Chemlali’

Olive is a traditionally important crop grown extensively in the Mediterranean basin. Floral quality and effective pollination have a significant influence on fruit set and on final crop. In the present work, we studied the effect of foliar fertilization on floral phenology, flowering parameters, pollen viability, and in vitro pollen germination of Olive 'Chemlali' grown under rain-fed conditions in Saheline (Monastir, Tunisia). For this purpose, four foliar treatments were applied: TC (control, without foliar nutrition), T1 (rich in nitrogen, applied on 18 of February before the start of vegetative growth and 10 days later), T2 (rich in boron, magnesium, sulfur and manganese, applied on 25 of March, before the begin of flowering and 10 days later) and finally T12 a combined treatment of T1 and T2. The number of flowers cm-1 of fruiting branch ranged between 5.49 (T1) and 8.51 (T12). The combined treatment T12 showed the earliest flowering on 30th April and the highest number of flowers inflorescence-1. The simple treatment T1 showed the highest number of perfect flowers. The maximum number of branched peduncles developing in the inflorescence was four for all treatments. Perfect flowers were more frequent in a terminal than in a lateral position. Pollen viability varied between 82.83 and 85.97%. The simple treatment T2 showed a high fertility of pollen under in vitro conditions. The results indicated that all foliar fertilization enhanced the flowering status of olive tree cultivated under rain-fed conditions of central Tunisia.

Response of Hydroponically Grown Cherry and Fresh Market Tomatoes to Reduced Nutrient Concentration and Foliar Fertilizer Application under Shadenet Conditions

Reduced nutrient concentration (NC) through fertigation in an open-bag hydroponic system with additional foliar fertilizer application may reduce nutrient wastage and thus decrease the production costs. A study was conducted to determine the effect of foliar fertilizer in combination with reduced NCs on the yield and quality of hydroponically grown cherry and fresh market (FM) tomatoes in a shadenet structure. In the first experiment, FM tomato plants were grown in sawdust fertigated with nutrient solutions containing 100% (control), 75%, 50%, or 25% of the recommended NC. Marketable yield and fruit mineral content were unaffected by NC, whereas the total yield decreased with a decrease in NC. The second and third experiments were on FM and cherry tomatoes, respectively, subjected to four NCs (100%, 75%, 50%, or 25%) and two foliar fertilizer applications (no foliar and foliar application). Fresh and dry weight of FM and cherry tomato plants decreased with a decrease in NC application. Marketable yield on FM tomatoes increased with 50% to 100% NC, whereas the total yield increased with 75% and 100% NC, as compared with 25% NC. Cherry tomatoes produced lower marketable yield at 25% and 50% NC, as compared with 75% and 100% NC. Foliar fertilizer application did not have an effect on FM and cherry tomato yield, but improved the plant dry weight of cherry tomatoes. Fruit and leaf Ca content of FM tomatoes were improved by the decrease in the NC. Fruit mineral content (K, P, Ca, Mg, and Zn) of cherry tomatoes increased with an increase in NC. The improvement in yield was primarily due to nutrient uptake, especially, N, P, and K, as determined in tomato leaves. Reduced NC of 50% can maintain yield and quality of FM tomatoes, whereas application of foliar fertilizer had a limited effect. In cherry tomatoes, yield and fruit mineral content were maintained at 75% NC combined with foliar fertilizer application. The findings of this research may reduce nutrient wastage and result in a cost saving of 25% and 50% on fertilizer input costs on cherry and FM tomatoes, respectively, and reduce the risk associated with water pollution.

Effect of foliar fertilization with magnesium sulfate and supplemental L-ascorbic acid on dry matter yield and chemical composition of cv. Egida timothy grass

Effect of foliar fertilization with magnesium sulfate and supplemental L-ascorbic acid on dry matter yield and chemical composition of cv. Egida timothy grass