Foliar Application Of Zinc Research Articles

Effect of Zinc Application Methods on Nutrition Uptake in Cotton

This study was carried out to determine the effect of different zinc application methods on cotton plant nutrient uptake and nutrition content in the soil. The study was conducted at Siirt University Faculty of Agriculture Department of Field Crops experimental area as a randomized complete block design with four replications. Seven different zinc applications were performed (Control, To Soil 200 g da-1, To Soil 400 g da-1, Soil + Leaves at Pre-Squaring Stage, Pre-Squaring Stage + Initial Flowering Stage to Leaves, Pre-Squaring Stage + Pre Flowering Stage + Flowering Stage to Leaves, Pre-Flowering Stage + Flowering Stage to Leaves). According to the results of leaf analysis, it was determined that there were non-significant differences in terms of N, K, Ca, Na, Mg, Fe, Zn, Mn, and Cu content, but soil analysis after harvest showed that N, K, Ca, Na, Mg and Cu content were affected from different zinc treatments, however, P, Fe, Zn, Mn were not affected from applications. It has been observed that the highest N, P, K, Ca, and Na value in the soil was obtained from zinc applications to the soil + pre- squaring stage to leaf, and the highest Mg and Fe value in the soil was obtained from control. Although there were no significant differences detected between the zinc applications in terms of leaf analysis, it was observed that the highest K, Ca, Na, Mg, Fe, Mn, and Cu values were obtained from the zinc application of 200 g da-1 to the soil. In the study, it was observed that the highest zinc values in the leaf and soil were obtained from the foliar application of zinc applied before squaring and beginning of flowering. This application can be recommended to increase the zinc content in the soil and leaves.

The Effect of Different Levels of Foliar Application of Zinc, Iron, and Manganese Micronutrients on Reproductive Characteristics and Yield of Vitis vinifera Grapes in some Vineyards of Zanjan Province

The Effect of Different Levels of Foliar Application of Zinc, Iron, and Manganese Micronutrients on Reproductive Characteristics and Yield of Vitis vinifera Grapes in some Vineyards of Zanjan Province

Mitigation of drought stress effects on wheat yield via the foliar application of boron, zinc, and manganese nano-chelates and supplementary irrigation

The aim of this study was to examine the effect of the foliar application of B, Zn, and Mn nano-chelates in separate and combined forms and determine what level of nano-chelates fertilizer treatment most significantly enhances the grain yield of wheat (Azar-2 cultivar) under rainfed and supplementary irrigation conditions. The experiment was performed as a split-plot experiment with three replications in two crop years (2014–2015). The main plot included two irrigation regimes ((I1) rainfed irrigation and (I2) supplementary irrigation) during two stages of development (spike emergence and grain filling). The sub-plot had eight foliar application levels: B, Zn, Mn, B + Zn, B + Mn, Zn + Mn, B + Zn + Mn, and distilled water (control). The foliar application of B, Zn, and Mn nano-chelates combined with supplementary irrigation or its sole application dramatically increased wheat’s resistance to drought stress. Thousand kernel weight and the number of kernels per spike play a decisive role in grain yield. Therefore, the foliar application of nano-fertilizers can increase grain yield by improving these components. The highest grain yield (2528.33 kg/ha−1) was obtained in the supplementary irrigation condition after the combined foliar application of B + Mn + Zn nano-chelates. This condition led to a 41% increase compared to the highest grain yield obtained under rainfed conditions after the foliar application of Zn nano-chelates (1490 kg/ha−1).

Rice growth improvement, bio-fortification, and mitigation of macronutrient requirements through foliar application of zinc and iron- glycine chelate and zinc sulfate

Foliar application of Zinc (Zn) and Iron (Fe) fertilizers is known to be an effective solution to enhance rice grain yield and bio-fortification. The objectives of the current field experiment were to evaluate the effects of the foliar application of 0.5, 1, and 1.5 kg ha−1 of Zn and Fe glycine amino acid chelates and ZnSO4 on rice grain yield, protein, Zn, and Fe content of head rice (Hashemi cultivar) under both in the recommended and ½ of the recommended dose of NPK. The highest increase in the grain yield was recorded at 0.5 kgha−1 Fe-glycine amino acid chelate by about 29.2%. The maximum increase in protein and Zn content of head rice were recorded at 1.5 kg ha−1 of glycine amino acid-Zn chelate by about 10.5 and 22.3%, respectively. The most effective treatment to enhance the Fe content of head rice was the foliar application of 1.5 kg ha−1 of glycine amino acid-Fe chelate by about 32.6%. Interestingly, the foliar application of 1 kg ha−1 Zn-glycine amino acid chelate plus 1 kg ha−1 Fe-glycine amino acid chelate at the plots that received ½ of recommended NPK increased the grain yield, and protein, Zn and Fe content of head rice compared to control by about 7%, 18.5, 7.5, and 26.2, respectively. Therefore, regardless of rates and types, foliar application of Zn and/or Fe could enhance both rice yield, protein, Zn, and Fe content of head rice both in plots that received recommended and ½ of the recommended dose of NPK.

Influence of Nitrogen and Zinc on Yield Attributes, Yield and Economics of Wheat (Triticum aestivum L.)

The field experiment was conducted at crop research farm (CRF) during Rabi season 2021-22 Department of Agronomy, SHUATS, Prayagraj (UP). To study the “Influence of nitrogen and zinc on yield attributes, yield and economics of wheat”. The experiment was laid out in Randomized Block Design with 3 replications. The results showed that T9 [nitrogen at (120kg/ha) + zinc at (0.06%)], found more productive as it attained the superior values of yield attributing trails i.e., spikes/m² (435.66), grains/spike (56.63), test weight (41.66 g), grain yield (4.82 t/ha), straw yield (11.66 t/ha) and proved significantly superior over other treatments of different levels of nitrogen and foliar application of zinc and that treatment also fetched the higher values of gross return (132110.00 INR/ha), net return (89650.70 INR/ha) and also found more remunerative due to highest benefit cost ratio (2.11).

Foliar application of zinc promotes cadmium absorption by increasing expression of cadmium transporter genes and activities of antioxidative enzymes in winter wheat

To elucidate the mechanisms of zinc (Zn) application alleviating cadmium (Cd) toxicity in wheat, we characterized plant growth, antioxidant system, leaf cell ultrastructure and Cd transporter gene expression in a hydroponic experiment. Results showed that addition of Zn (Zn+Cd) or pretreatment with foliarly applied 2 g L -1 ZnSO 4 ·7H 2 O (pre-Zn+Cd) significantly exacerbated Cd-induced growth inhibition and diminished root morphological parameters, root cell viability, and chlorophyll content. In addition, the Cd concentrations were increased in roots and shoots in the Zn+Cd and pre-Zn+Cd treatments compared to Cd treatment, but the Cd translocation factor was decreased. After Zn application, the Cd concentrations increased in the root cell wall fraction but decreased in the soluble fraction. Activity of antioxidative enzymes (SOD; superoxide dismutase, POD; peroxidase, CAT; catalase) and content of non-enzymatic antioxidants (MDA; malondialdehyde, ASA; ascorbic acid, GSH; glutathione) were increased after Cd exposure, particularly in the foliar Zn treatment. Gene expression analysis showed that five genes ( TaHMA2 , TRIAE5370 , TCONS1113 , TRIAE5770 , TRIAE1060, and TCONS5200 ) participated in the root absorption of Cd, whereas TCONS5200 and TRIAE5660 contributed to Cd transfer to shoots. Application of Zn increased number of chloroplasts, but the chloroplast structure was destroyed under Zn treatment during Cd exposure. These results indicate that 2 g L -1 ZnSO 4 ·7H 2 O increased toxicity of 50 μM Cd. Increased Cd uptake due to the upregulated expression of Cd transporter genes and increased ROS accumulation may be the reasons for Zn application aggravating Cd toxicity.

Foliar Application of Zinc and Potassium Mitigates the Effect of Salt Stress on Wheat

Foliar Application of Zinc and Potassium Mitigates the Effect of Salt Stress on Wheat

Effect of foliar application of zinc on biofortified rice (Oryza sativa L.)

A field experiment was conducted to study the comparative performance of zinc in biofortified rice and their effect on yield attributes, yield and zinc concentration of rice at BAU farm, Sabour in Randomized Block Design replicated thrice during Kharif season of 2021-22. The variety used was Sabour Aaayush. The soil of the experimental plot was silt loam having pH 7.7, organic carbon 0.53%, Low in available Nitrogen (159.88 kg/ha), Phosphorus (26.94 kg P2O5/ha), Potassium (196.69 kg K2O/ha) and initial soil Zn-1.0 mg/kg of soil. The recommended dose of fertilizers i.e. 100-40-20 kg N- P2O5- K2O/ha was applied. In addition to these fertilizers 25 kg zinc sulphate was applied as basal and 0.5% zinc sulphate used as foliar spray at pre flowering and milking stage of rice. The experimental results revealed that RDF (100:40:20)+25 kg/ha zinc sulphate as basal+0.5% zinc sulphate spray as foliar application at pre flowering and milking stage was the best treatment and recorded significantly better values for yield attributes (74.74 grains per panicles,270.33 panicles per m2, 30.18 g test weight),higher grain yield (4.96 t/ha) and higher concentration (30.9 and 91.8mg kg-1 grain and straw respectively) and uptake of Zn in grain (153.3 g ha-1) and in straw (455.2 g ha-1) of bio fortified rice than soil application alone and single spray of Zn and most other treatments. This study brought out that adequate soil application of Zn sulphate followed by its two foliar applications is the best approach.

Effect of foliar application of silicon, selenium and zinc on heavy metal accumulation in wheat grains in field studies

ABSTRACT Foliar application technology is commonly used in soil remediation for rice, but few attempts on wheat. The heavy-metal food risk of wheat is a major concern recently. In addition, most prior experiments were conducted in pots and lacked consecutive results of years. Therefore, two consecutive years of field positioning tests were conducted to explore the influence of three kinds of mineral foliar application (Si, Se, and Zn) on the heavy-metal content of wheat grains. The results showed that foliar application with silicon (Si) largely increased wheat yield and plant height, and reduced (Arsenic) As and (Lead) Pb contents. Foliar application with selenium (Se) and zinc (Zn) prominently reduced heavy metals Cd, As and Pb. Se application could not only reduce the heavy-metal content in crops but also improve the Se content in the edible parts of crops, thereby, as suggested, applying it in the low and medium polluted soils.

Effect of Zinc and Boron foliar application on leaf chemical composition of Moringa oleifera and on yield and characters of its seed oil

Effect of Zinc and Boron foliar application on leaf chemical composition of Moringa oleifera and on yield and characters of its seed oil

Efficiency and assimilation of nitrogen in bean plants through foliar application of zinc and molybdenum nano fertilizer

Fertilization with nanoparticles offers alternatives to improve the efficiency of nutrient absorption in a sustainable way in crops. The objective of this work was to study the influence of foliar application of zinc-molybdenum nanofertilizer (Nano ZnMo) on nitrogen (N) use efficiency (NUE), as well as on yield parameters and N assimilation in green bean plants cv. “Strike”. Three doses of Nano ZnMo (0, 4 and 8 ppm) were applied foliar in combination with four doses of N in the form of NH4NO3 in nutrient solution (0, 3, 6 and 12 mM). The treatment that obtained the greatest increase in total biomass was the combination of 6 mM N + 4 ppm Nano ZnMo, with an increase of 11.6% compared to the treatment without application of Nano ZnMo. The treatment that registered the highest yield was the combination of 3 mM of N + 4 ppm of Nano ZnMo with an increase of 39.3% compared to the treatment without foliar application of Nano ZnMo (3 mM of N). The utilization coefficients (NUtE) and NUE were favored with the foliar application of Nano ZnMo at 4 ppm in combination with 3 and 6 mM of N in nutrient solution. These treatments made it possible to reduce the dose of N fertilization without compromising production. Therefore, the foliar adhesion of Nano ZnMo makes it possible to improve the efficiency of nutrient absorption and sustainably increase crop productivity.

Changes in Carbon and Nitrogen Metabolites before, at, and after Anthesis for Wheat Cultivars in Response to Reduced Soil Water and Zinc Foliar Application.

Water deficit stress is one of the major constraints for commercial agriculture, as it disturbs the metabolic processes in plant. Identification of carbon and nitrogen receptors that act on drought resistance helps in breeding for drought resistance varieties. Zn fertilizer can regulate multiple antioxidant defense systems at the transcriptional level in response to drought. Two field experiments were conducted in 2018–2019 and 2019–2020 seasons to explore the effectiveness of foliar application of zinc oxide on soluble sugar, soluble proteins, and free amino acids under normal irrigation and drought-stressed environments. Three Egyptian wheat cultivars (Triticum aestivum L.) were used. The experimental design was split-plot in RCBD with three replications, applying zinc oxide levels to the whole plot and the split plots. Leaf samples were taken for analysis before anthesis, at anthesis, and after anthesis. Application of Zn increased soluble sugars. However, the free amino acids were higher under irrigation, reached the maximum at anthesis, and decreased sharply after 2 weeks from anthesis. The ranking of cultivars for the three metabolites differed according to plant stage, reflecting the response to Zn and years. Correlations between metabolites according to Zn were positive. The findings suggest the potential of foliar application of Zn to alleviate drought stress.

Impact of Foliar Application of Zinc and Biofertilizers on Growth of Sorghum (Sorghum bicolor L.)

The field experiment took place in the Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj, during the Kharif season of 2021. (UP), India. The objective of the experiment is to lessen the use of chemical fertilizers by using techniques of integrated nutrient management efficiently without compromising the nutrient availability to the crop, which ultimately reduces the effect of chemicals used in the agroecosystem. The experiment was set up in a Randomized Block Design with ten treatments, including control, replicated thrice using various biofertilizers. viz., Azospirillum species 25 gram/kilogram seeds, Phosphate solubilizing bacteria 25 g/kg seeds and combination of Azospirillum sp. 25 g/kg seeds + PSB 25 g/kg seeds and foliar application of 0.5% zinc at 30, 50 and 30 + 50 days after sowing per hectare. The research revealed that foliar application of zinc 0.5% at 50 DAS along with seed inoculation by Azospirillum sp. 25 g/kg Seeds + PSB 25 g/kg seeds significantly increased the growth parameters of Sorghum viz., plant height (163.31centimeter), dry matter accumulation (92.71 g), No. of Leaves (12.87), absolute growth rate (1.33 g/plant/day), crop growth rate (44.31 g/m2/day) and leaf area (414.67 cm2).

Diverse Planting Density-Driven Nutrient and Yield Enhancement of Sweet Corn by Zinc and Selenium Foliar Application

Corn (Zea mays L.) is one of the major cereal crops cultivated worldwide. Zinc and selenium are important nutrients for humans and plants, and their deficiency is a cause for concern in most developing countries. Sweet corn fertilized with zinc and selenium can mitigate this problem. Therefore, the objective of this study was to investigate the effects of fertilization with Zn and Se on the yield and quality of sweet corn varieties under different planting densities. The experimental design used was a split-plot based on a randomized complete block design with three replications. Compared to the control, significant differences were recorded in grain yield, leaf area index, and plant height (i.e., Zn/Se + density + variety) treatments. Non-significant differences in the number of kernels per cob, sugar content and crude protein were recorded under different treatments. Significant differences in grain yield, water-soluble sugar, and zinc and selenium content in grain were recorded. Grain yield was higher in Selenium than in Zinc treatments, with a mean difference of 0.05 t ha−1. We conclude that grain yield and selenium content in grain were influenced by selenium foliar application, while water-soluble sugar and zinc content in grain were influenced by foliar zinc application.

Studies on Yield and Economics of Sesame (Sesamum indicum L.) as Influenced by Spacing and Foliar Application of Zinc

Background: Sesame plants thrive in hot, dry weather. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds. The oil content of the seed is inversely proportional to its protein content. Most commercial cultivars of sesame are intolerant of water-logging.
 The objective of the present experiment was to analyze the influence of spacing and application of zinc using foliar method on growth, yield and economics of Sesame (Sesamum indicum L.) during kharif season of 2021. The experiment was designed with varying combination of spacing and zinc using the Randomized Block Design which produced nine treatments with three replicates each. The treartment combinations are T1 – 25 cm X 15 cm + 0.25% ZnSO4, T2 – 25 cm X 15 cm + 0.50% ZnSO4, T3- 25 cm X 15 cm + 0.75% ZnSO4, T4- 35 cm X 15 cm + 0.25% ZnSO4, T5 – 35 cm X 15 cm + 0.50% ZnSO4, T6 – 35 cm X 15 cm + 0.75% ZnSO4, T7- 40 cm X 10 cm + 0.25% ZnSO4, T8- 40 cm X 10 cm + 0.50% ZnSO4, T9 – 40 cm X 10 cm + 0.75% ZnSO4. The combination, T9 with spacing 40 X 10 cm and 0.75% ZnSo4 recorded maximum number of capsules per plant (54.60), number of seeds per capsule (60.50), seed yield (1.20 t/ha), harvest index (31.89 %). The application of treatment T9 40 cm X 10 cm + 0.75% ZnSO4 recorded higher net return (52,016.00 INR/ha), gross return (78,217.00 INR/ha) and benefit: cost ratio (1.99) as well.
 Conclusion: 40 cm X 10 cm + ZnSo4 – 0.75 %, had the highest results for yield characteristics such has grain yield (1.20 t/ha), gross return (78,217.00 INR/ha), net return (52,016.00 INR/ha) and benefit: cost ratio (1.99).

The effects of foliar application of zinc and phosphorous on the morphology and yield of the dominant Iranian rice variety (Hashemi)

Deficiencies of phosphorus (P) and zinc (Zn) cause the most important nutrient disorders in the world’s paddy fields. This study characterized the effect of Zn and P foliar application on morphology, grain yield and its yield components. The two factors factorial experiment was conducted using a randomized complete block design with three replications in 2017–2018. The analysis of variance indicated that most treatments influenced morphological characters, yield, and yield components. The results also revealed that the foliar application of Zn and P at 1 week before flowering and grain filling increased the fertile tiller number (15%), panicle length (20%), filled and unfertile grain number (23 and 13%). Also, the separate foliar application of Zn and P increased grain yield by about 12 and 7%, respectively. Both the straw and biological yield were increased by Zn and P foliar application about 10 and 7%, respectively. The results indicate that both P and Zn foliar application was able to improve the rice yield components and physiological characteristics toward higher yield.

Improvement of Growth, Yield and Biochemical Properties of Potato (Solanum tuberosum L. “Montreal” and “Red Bull”) by Foliar Application of Zinc Under Calcareous Soil Conditions

Improvement of Growth, Yield and Biochemical Properties of Potato (Solanum tuberosum L. “Montreal” and “Red Bull”) by Foliar Application of Zinc Under Calcareous Soil Conditions

Effect of gibberellin, nano-nutrition with titanium, zinc and iron on yield and some physiological and qualitative traits of white beans

Plant nutrition has a vital role in crop production. This study was performed to investigate the effects of different application methods of some nutrients (nano Fe, Zn, and Ti), and gibberellin on yield, some morphophysiological and grain protein of white beans in 2018 as a factorial experiment in a randomized complete block design with four replications. Experimental factors included seed priming (hydropriming, gibberellin priming, titanium nano dioxide, and nano-Zn priming) and micronutrient foliar spraying (zinc, iron, and zinc + iron). The results illustrated that seed priming and foliar application significantly affected yield, yield components and chlorophyll content. Plant height increased in seed priming treatment with gibberellin and foliar application of zinc + iron by 13% compared to the control. Furthermore, this treatment enhanced the number of sub-branches per plant by 32% compared to the control. Grain yield components such as the number of pods per plant and 100-grain weight were also affected by seed priming with nano-Zn, and the simultaneous spraying of iron and zinc that grain yield by 18%, so that grain yield by 2649 kg ha–1 in hydropriming treatment reached to 3211 kg ha–1 in nano-Zn priming with simultaneous application of zinc and iron. Nano-Zn priming with iron foliar application caused the highest biological yield (9011 kg ha–1), which increased by 19% compared to control. Nano-Zn priming increased grain protein percentage by 21%. This treatment along with the foliar application of zinc + iron, significantly enhanced leaf chlorophyll content compared to other treatments. Therefore, to increase the yield of white beans, priming treatment with nano-Zn as well as foliar application of zinc + iron can be used.

Effect of Sulphur and Micronutrients on the Yield and Quality of Garlic (Allium sativum L)

The field experiment was conducted at the Horticulture Farm, Sri Karan Narendra College of Agriculture, Jobner, Jaipur (Rajasthan) to find out the effect of sulphur and micronutrients on yield and quality of garlic during Rabi seasons 2019-20 and 2020-21. The experiment was carried out in factorial randomized block design with three replications and twenty treatment combinations with four levels of sulphur (S0-control, S1-sulphur 20 kg/ha, S2-sulphur 40 kg/ha and S3-sulphur 60 kg/ha) and five levels of micronutrients (M0-Control, M1-zinc sulphate @ 0.6%, M2-ferrous sulphate @ 0.2%, M3-borax @ 0.5 and M4-Ammonium molybdate @ 0.5%). The sulphur was applied as soil application just before sowing and micronutrients (Zn, B, Fe and Mo) as foliar spray at 40 days after sowing. Recommended dose of inorganic fertilizers applied uniformly in whole experimental area. The results of the study have clearly indicated that among sulphur levels, application of sulphur 60 kg/ha significantly improved yield and quality parameters viz., average weight of clove, average weight of bulb, bulb yield per plot, per hectare, nitrogen content, phosphorus content, potassium content and sulphur content in bulb enhanced significantly by application of sulphur 60 kg/ha (S3) in both the years as well as in pooled analysis. Although, sulphur application at 40 kg/ha along with foliar application of zinc at 0.6 % was found at par to it. Similarly, among micronutrients foliar application of zinc sulphate @ 0.6% significantly influenced all the yield and quality parameters viz., average weight of clove, average weight of bulb, bulb yield/plot, bulb yield/hectare, nitrogen content, phosphorus content, potassium content and sulphur content in bulb of garlic in both the years as well as in pooled analysis.

Foliar zinc application for zinc biofortification in diverse wheat genotypes under low Zn soil

Foliar zinc application for zinc biofortification in diverse wheat genotypes under low Zn soil