scholarly journals Zinc biofortification as an innovative technology to alleviate the zinc deficiency in human health: a review

2020 ◽  
Vol 5 (1) ◽  
pp. 176-187
Author(s):  
Rajan Bhatt ◽  
Akbar Hossain ◽  
Pardeep Sharma
Keyword(s):  
Human Health ◽  
Zinc Deficiency ◽  
Foliar Application ◽  
Indian Subcontinent ◽  
Water Productivity ◽  
Innovative Technology ◽  
Wheat Crop ◽  
Micronutrient Deficiencies ◽  
Edible Portion ◽  
Soil Application

AbstractPaddy-wheat crop rotation is responsible for declining soil health, underground water table, arising new micronutrient deficiencies, new weed flora, and resistance to herbicides, declining both land and water productivity and is claimed to be capital and energy-intensive, more particularly in emerging countries. This is further aggravated when micronutrients are deficient, particularly zinc (Zn), which plays an important role in human health, especially in developing countries. Zn biofortification is a technique in which the inherent Zn status of the edible portion of plants is improved by simply spraying a Zn solution onto the crop or through a soil application at a predetermined stage and a proper dose. The concentration of Zn within a wheat grain is genotype-dependent and interacts with the environment, inducing variation in a grain’s concentration of micronutrients. Grain quality parameters are positively correlated with a higher dose of nitrogen in the late reproductive stage. Broadcasting of ZnSO4·7H2O at 62.5 kg ha−1 and foliar application of Zn chelates such as Zn–HEDP (C) at 2 g L−1, Zn–HEDP (L) at 3 g L−1, or a 0.4–0.5% ZnSO4 solution during grain development stage enhanced the growth, productivity, and micronutrients concentration in the edible portion of the plant which further improves the quality of wheat grains and ultimately improves human health in the region. Given the central importance to Zn in cereal-based nutrition, zinc biofortification appears as an innovative technology to alleviate the zinc deficiency in human health, especially on the Indian subcontinent, by applying Zn either as a foliar or soil application.

Emerging Nutrition Gaps in a World of Affluence - Micronutrient Intake and Status Globally

2011 ◽  
Vol 81 (4) ◽  
pp. 238-239 ◽  
Author(s):  
Manfred Eggersdorfer ◽  
Paul Walter
Keyword(s):  
Developing Countries ◽  
Human Health ◽  
Old Age ◽  
Molecular Basis ◽  
Health Benefit ◽  
Developed Countries ◽  
Micronutrient Deficiencies ◽  
New Science ◽  
Health And Nutrition ◽  
Micronutrient Intake

Nutrition is important for human health in all stages of life - from conception to old age. Today we know much more about the molecular basis of nutrition. Most importantly, we have learnt that micronutrients, among other factors, interact with genes, and new science is increasingly providing more tools to clarify this interrelation between health and nutrition. Sufficient intake of vitamins is essential to achieve maximum health benefit. It is well established that in developing countries, millions of people still suffer from micronutrient deficiencies. However, it is far less recognized that we face micronutrient insufficiencies also in developed countries.

scholarly journals Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)

2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Growth Yield ◽  
Triticum Aestivum L ◽  
Recommended Dose ◽  
Zn Deficiency ◽  
Soil Application ◽  
Yield And Quality ◽  
The Impact

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc

scholarly journals Effect of irrigation, nitrogen levels and methods of fertilizer application on growth, yield and profitability of yard long bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt]

2019 ◽  
Vol 38 (4) ◽  
Author(s):  
R.S. Anjana ◽  
K.R. Sheela
Keyword(s):  
Foliar Application ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Net Income ◽  
Area Index ◽  
Yield Attributes ◽  
Soil Application ◽  
Pod Yield ◽  
Irrigation Interval ◽  
Gross Income

A field experiment was conducted during the summer, 2014 at College of Agriculture, Vellayani, Kerala to evaluate the influence of irrigation levels, nitrogen stress and method of application of fertilizers on growth and yield of yard long bean. The experiment consisted of four levels of irrigation, two levels of nitrogen and two methods of application. The results indicated that daily irrigation at 10 mm depth and recommended dose of nitrogen (30 kg ha-1) recorded superior values for growth parameters viz., functional leaves per plant and leaf area index The major yield attributes like number of pods per plant and pod yield per plant and total pod yield were not influenced by levels of irrigation and nitrogen indicating that irrigation once in three days at 20 mm depth and nitrogen level of 22.5 kg ha-1 is sufficient for yard long bean. Soil and foliar application of nitrogen and potassium recorded superior growth characters, however, the yield was superior when the recommended dose of nutrients were supplied as soil application. Increasing irrigation interval to three days and imparting N stress did not result in any reduction in gross income and net income while, a higher benefit: cost ratio was noted in irrigation at wider intervals. Soil application of nutrients recorded higher gross income, net income and BCR compared to soil + foliar application.

scholarly journals Oil characteristics of safflower seeds under different nutrient and moisture management

2018 ◽  
Vol 17 (1) ◽  
pp. 86-94 ◽  
Author(s):  
Mokhtar Pasandi ◽  
Mohsen Janmohammadi ◽  
Amin Abasi ◽  
Naser Sabaghnia
Keyword(s):  
Oil Content ◽  
Micronutrient Deficiencies ◽  
Full Irrigation ◽  
Plant Seed ◽  
Soil Application ◽  
Moisture Management ◽  
Irrigation Condition ◽  
The Impact ◽  
Qualitative Characteristics ◽  
Semi Arid

Abstract Safflower is one of the most important oilseed crops in semi-arid regions. The soil of semi-arid areas often encounters micronutrient deficiencies. However, nutrients imbalance seems to affect the quantitative and qualitative aspects of the oil as well as plant growth. Current experiment was carried out to evaluate the impact of different application practices (soil application and foliar spray) of micronutrients (Fe, Zn, Mn) on oil content, fatty acid profile and yield components of safflower under full and limited irrigations. Results showed that all of investigated traits were significantly affected by fertilizer treatment and irrigation system. The highest seed protein content was recorded for plants grown by soil application of Zn under limited irrigation condition. The highest oil content was achieved by soil application of Zn under full irrigation condition. The water deficit significantly reduced some qualitative characteristics such as oleic acid, palmitic aid, stearic acid, linoleic acid, iodine value and saponification value. The highest head number per plant, seed number per head and seed yield recorded in plants grown by soil application of Fe and Zn under full irrigation condition. Although the use of micronutrients improved qualitative characteristics in comparison with control, the best qualitative characteristics were achieved with the soil application of Zn and Fe. The elimination of micronutrient deficiencies and the balanced supply of nutrients through soil along with optimal and timely irrigation can significantly increase the efficiency of safflower production systems and improve the quality of the oil.

scholarly journals Using Soil and Foliar Applications of some Fertilizers to Improve the Yield and Quality Parameters of Table Grapes (Vitis vinifera L.)

2020 ◽  
Vol 77 (1) ◽  
pp. 1
Author(s):  
Hisham ABO-AHMEDEH ◽  
Amer MHASNEH ◽  
Hamzeh RAWASHDEH
Keyword(s):  
Foliar Application ◽  
Fertilizer Application ◽  
Quality Parameters ◽  
Control Treatment ◽  
Vitis Vinifera L ◽  
Foliar Fertilizer ◽  
Soil Application ◽  
Application Method ◽  
Table Grapes ◽  
Yield And Quality

The objective of the current study was to investigate the effect of soil and foliar application of some fertilizers on the yield and quality of table grapes cv. Alkdarri. Soil and foliar fertilizer application treatments included a control, Ca 200 g/vine, K 150 g/vine, N 200 g/vine, Ca 30 g/L, grow more INC fertilizer 10 g/L, K 20 g/L, and Cu 5 mg/L. Results indicate that soil and foliar fertilizer application increases quality and quantity of table grapes compared to control treatment. The highest berry diameter, a weight of 100 berries and a size of 100 berries were obtained in vines treated with Ca 200 g/vine, using the soil application method. The highest cluster weight was obtained in vines that were treated with K 150 g/vine, using the soil application method. The highest berry firmness was obtained in vines that were treated with K 20 g/L using the foliar application method. The highest pH and TSS were obtained in vines treated with Cu 5 mg/L, using the foliar application method. The highest fruit yield was found in vines that were treated with 150 g K.

scholarly journals Effect of Soil and Foliar Silicon Application on the Reduction of Zinc Toxicity in Wheat

Agriculture ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 522 ◽  
Author(s):  
Aleksandra Zajaczkowska ◽  
Jolanta Korzeniowska ◽  
Urszula Sienkiewicz-Cholewa
Keyword(s):  
Sodium Silicate ◽  
Plant Biomass ◽  
Foliar Application ◽  
Zinc Toxicity ◽  
Soil Application ◽  
Zn Concentration ◽  
Drastic Increase ◽  
Applied Dose ◽  
Negative Effect ◽  
Si Content

The aim of the study was to compare soil and foliar application of Si to relieve stress in wheat caused by excess Zn in the soil. Two pot experiments were carried out in which the soil was contaminated with zinc sulphate at the dose of 600 mg kg−1 Zn before sowing. Si was applied in the soil in the following doses 200 mg kg−1 and 400 mg kg−1 Si and as foliar spraying in concentrations 2 mM L−1 and 6 mM L−1 Si in the form of sodium silicate. The applied dose of Zn was toxic to wheat and caused a significant decrease in the biomass of shoots and roots. Soil application of Si reduced the negative effect of Zn on plants and significantly increased the biomass of the tested organs. The foliar application of Si did not reduce the decrease of plant biomass. Soil contamination with Zn caused a drastic increase in Zn concentration in shoots and roots, while Si applied in the soil significantly decreased this concentration. The increase in soil pH, which was caused by sodium silicate, also affected the decrease in Zn concentration in plants. The plants absorbed Si applied to the soil, which is indicated by an increase in the Si content in shoots compared to the control. In the case of foliar spraying, only a higher dose of Si increased its concentration in the plants. The application of Si in the soil, in contrast to foliar application, reduced the transfer of Zn from roots to shoots. The higher effectiveness of soil application of Si than foliar application in alleviating the toxicity of Zn was associated with both an increase in pH and a higher uptake of Si by plants.

scholarly journals Soil Application of Cow Dung with Foliar Application of Boost Extra, Effect on Growth and Yield of Okra in an Ultisol, Nigeria

2015 ◽  
Vol 4 (1) ◽  
pp. 73
Author(s):  
Ogundare S. K. ◽  
Mohammed S. A. ◽  
Owolabi J. F.
Keyword(s):  
Foliar Application ◽  
Block Design ◽  
Growth And Yield ◽  
Cow Dung ◽  
College Of Agriculture ◽  
Soil Application ◽  
Significant Difference ◽  
Lady’S Finger ◽  
Single Field ◽  
Pod Length

Experiments were carried out at the student’s experimental field, Kabba College of Agriculture, Horticulture section to examine the effect of soil application of cow dung combined with foliar application of boost extra on growth and yield of okra in an ultisol, Nigeria. The land was ploughed each year and harrowed with the aid of tractor mounted implements. The experiment was laid out in a randomized complete block design (RCBD). The treatments consisted of A = 3t/ha cow dung, B = 1.0 L/ha foliar + 2.5t/ha cow dung, C =1.5L/ha foliar + 2t/ha cow dung, D    = 2 L/ha foliar      + 1.5 t/ha cow dung, E = 2.5L/ha foliar + 1.0t/ha cow dung, F = 3t/ha foliar. Each year experiment was conducted using a single field having dimension of 35 by 14m which was laid out into three blocks with 1m guard row between blocks. Each block consists of six plots (5 by 4m) and 1m guard row between plots. Cow dung manure was applied a week before planting. Okra variety Lady’s finger was used. Three seeds per hole were planted on April 4th in both years on the flat with a spacing of 60cm x 25cm between and within the rows and later thinned to one plant per stand. Data taken included plant height at 50 % flowering, number of branches per plant, leaf area, pod length, pod diameter, number of pods per plant; and pod weight and yield (t/ha). The data were subjected to Analysis of Variance (ANOVA) while the Least Significant Difference (LSD) was used to separate treatment means. The result shows that plot treated with 2.0L/ha foliar + 1.5 t/ha cow dung had the best performance in yield and yield components in this study. It is therefore recommended that okra farmers should integrated foliar fertilizer (boost extra) at the rate of 2L per hectare with cow dung at rate of 1.5t per hectare be used for okra production in the study area.

scholarly journals Effect of Rice Residue Retention and Foliar Application of K on Water Productivity and Profitability of Wheat in North West India

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 434 ◽  
Author(s):  
Raj Pal Meena ◽  
Karnam Venkatesh ◽  
Rinki Khobra ◽  
S. C. Tripathi ◽  
Kailash Prajapat ◽  
...  
Keyword(s):  
Foliar Application ◽  
Water Productivity ◽  
Soil Health ◽  
Cropping System ◽  
Large Area ◽  
North West ◽  
Net Returns ◽  
Relative Water ◽  
Use Efficiency ◽  
Residue Retention

The rice–wheat cropping system being the backbone of food security in South-Asia has resulted in soil health deterioration, declining water table, and air pollution affecting livability index of the region. The effect of rice residue retention (RRR), irrigation levels and foliar application of K on wheat grain yield (GY), water use efficiency (WUE) and profitability was tested over three years. RRR increased wheat GY (5224 kg ha−1), above-ground biomass (AGBM = 11.9 t ha−1), tillers per square meter (TPM = 469) and grains per meter square (GrPMS = 13,917) significantly. Relative water content (RWC = 93.8) and WUE (2.45 k gm−3) were also increased significantly by RRR. Consequently, profitability (Net return = 624.4 $ and Benefit to cost (B:C) ratio) was enhanced. Foliar application of K enhanced GY (5151 kg ha−1), AGBM (12 t ha−1), RWC (94.1), SPAD (52.2), WUE (2.40 kg m−3), net returns (625.2 $) and BC ratio (1.62) significantly. RRR increased GY (15.66%) and WUE (17.39%) with additional revenue of 151 $ with only one irrigation at the CRI stage (ICS). RRR adopted over 10% of the area can earn 187 million-US$ annually. RRR if adopted over existing practice on a large area would reduce environmental degradation with an enhanced income to small and marginal farmers.

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