Application of Zinc, Iron and Boron Enhances Productivity and Grain Biofortification of Mungbean

Abstract

Deficiencies of essential vitamins, iron (Fe), and zinc (Zn) affect over one-half of the world's population. A significant progress has been made to control micronutrient deficiencies through supplementation, but new approaches are needed, especially to reach the rural poor. Agronomic biofortification of pulses with Zn, Fe, and boron (B) offers a pragmatic solution to combat hidden hunger instead of food fortification and supplementation. Moreover, it also has positive effects on crop production as well. Therefore, we conducted three separate field experiments for two consecutive years to evaluate the impact of soil and foliar application of the aforementioned nutrients on the yield and seed biofortification of mungbean. Soil application of Zn at 0, 4.125, 8.25, Fe at 0, 2.5, 5.0 and B at 0, 0.55, 1.1 kg ha −1 was done in the first, second and third experiment, respectively. Foliar application in these experiments was done at 0.3% Zn, 0.2% Fe and 0.1% B respectively one week after flowering initiation. Data revealed that soil-applied Zn, Fe and B at 8.25, 5.0 and 1.1 kg ha −1 , respectively, enhanced the grain yield of mungbean; however, this increase in yield was statistically similar to that recorded with Zn, Fe and B at 4.125, 2.5 and 0.55 kg ha −1 , respectively. Foliar application of these nutrients at flower initiation significantly enhanced the Zn contents by 28% and 31%, Fe contents by 80% and 78%, while B contents by 98% and 116% over control during 2019 and 2020, respectively. It was concluded from the results that soil application of Zn, Fe, and B enhanced the yield performance of mungbean; while significant improvements in seed Zn, Fe, and B contents were recorded with foliar application of these nutrients.

Silicic and Ascorbic Acid Induced Modulations in Photosynthetic, Mineral Uptake, and Yield Attributes of Mung Bean (Vigna radiata L. Wilczek) under Ozone Stress

“…Under both stressful and nonstressed conditions, a balanced nutrient supply is essential for normal plant growth and production . Since all nutrients control various physiological roles, it is recognized that N, P, K + , Ca 2+ , and Mg 2+ have played an important role in cell division, cell enlargement, and differentiation .…”

“…65 Similarly, foliar treatment of ascorbic acid has been found to improve gas exchange characteristics because it is an important antioxidant that protects photochemical processes by scavenging H 2 O 2 , O 2 -, and OH -, as stated in the current study and also by Ali et al 34 and Gaafar et al 32 Under both stressful and nonstressed conditions, a balanced nutrient supply is essential for normal plant growth and production. 66 Since all nutrients control various physiological roles, it is recognized that N, P, K + , Ca 2+ , and Mg 2+ have played an important role in cell division, cell enlargement, and differentiation. 66 The concentration of mineral nutrients like N, K + , P, Ca 2+ , and Mg 2+ in all mung bean varieties was greatly decreased by elevated O 3 levels in this sample (Figure 3).…”

“…Under both stressful and nonstressed conditions, a balanced nutrient supply is essential for normal plant growth and production. 66 Since all nutrients control various physiological roles, it is recognized that N, P, K + , Ca 2+ , and Mg 2+ have played an important role in cell division, cell enlargement, and differentiation. 66 The concentration of mineral nutrients like N, K + , P, Ca 2+ , and Mg 2+ in all mung bean varieties was greatly decreased by elevated O 3 levels in this sample ( Figure 3 ).…”

“… 66 Since all nutrients control various physiological roles, it is recognized that N, P, K + , Ca 2+ , and Mg 2+ have played an important role in cell division, cell enlargement, and differentiation. 66 The concentration of mineral nutrients like N, K + , P, Ca 2+ , and Mg 2+ in all mung bean varieties was greatly decreased by elevated O 3 levels in this sample ( Figure 3 ). As a product of altered soil chemistry and microbiology, nutrient abundance in soil under O 3 stress can be inhibited or decreased.…”

Effects of Poultry Manure on the Growth, Physiology, Yield, and Yield-Related Traits of Maize Varieties

“…Various agricultural practices are needed to increase the maize growth, the grain yield and yield components, and the nutritional quality of maize grains as the soil of arable land areas has very low organic content and nutrient deficient. − Therefore, most of the crops show positive response to soil amendments with various products. − PM is considered as a rich source of nutrients as it improves soil fertility and crop production, and it is an enriched source of various major macronutrients such as nitrogen (N), potassium (K), and phosphorus (P). , Important plant nutrients like nitrogen, phosphorous, potassium, calcium, magnesium, sulfur, copper, zinc, chlorine, boron, iron, and molybdenum, all are present in PM. So, PM can be utilized as a good fertilizer to fulfill all or a portion of nutritional requirements of crop plants.…”