Hidden hunger is emerging as a major challenge for agricultural scientists because world population is increasing and food production is augmenting. Metals deficiencies (micronutrient malnutrition), especially Zn and Fe, are affecting over half of global population because they are depending cereal crops mainly wheat rice and maize for their daily diet. There are various possible techniques to overcome the hidden hunger but agronomic biofortification is one of the major agricultural strategies to enhance the grain concentration of micronutrients. Application of iron sulphate (FeSO 4 ) zinc sulphate (ZnSO 4 ) and as alone or in combination either soil and foliar application increased the height of plants, number of tillers, spike length, number of spikelets per spike, number of grains per spike, thousand grain weight, economical yield, biological yield and harvesting index, calcium, magnesium, iron, zinc, copper and protein contents. Among different Zn and Fe concentrations applied either soil supplement or foliar spray, combine foliar spray of 0.5% ZnSO 4 and 1% FeSO 4 significantly improved the maximum growth or quality attributes of wheat. Biofortification is one of the major agricultural strategies to enhance the concentration of micronutrients in grains to minimize the malnutrition. Combination of Zn and Fe as foliar spray (0.5% ZnSO 4 and 1% FeSO 4 ) increased the yield traits of wheat crop as well as quality parameters of grains. Foliar application method is more appropriate for availability of nutrients to plants for optimum growth as compared to soil application method. Combined application of Zn and Fe (0.5% ZnSO4 and 1% FeSO4) through foliar spray is recommended to enhance the productivity of wheat crop with good quality of grains.

中文翻译：

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锌和铁的生物强化提高小麦作物的谷物质量和产量

隐性饥饿正在成为农业科学家面临的主要挑战，因为世界人口在增加，粮食产量也在增加。金属缺乏（微量营养素营养不良），尤其是锌和铁，正在影响全球一半以上的人口，因为他们的日常饮食主要依赖谷类作物，主要是小麦水稻和玉米。有多种可能的技术来克服隐性饥饿，但农艺生物强化是提高谷物微量营养素浓度的主要农业战略之一。施用硫酸铁 (FeSO 4 ) 硫酸锌 (ZnSO 4 ) 以及单独或结合土壤和叶面施用可增加植物高度、分蘖数、穗长、每穗小穗数、每穗粒数、千粒重，经济产量，生物产量和收获指数，钙、镁、铁、锌、铜和蛋白质含量。在施用土壤补充剂或叶面喷洒的不同锌和铁浓度中，0.5% ZnSO 4 和1% FeSO 4 的组合叶面喷洒显着提高了小麦的最大生长或品质属性。生物强化是提高谷物中微量营养素浓度以最大程度减少营养不良的主要农业战略之一。Zn 和 Fe 组合作为叶面喷洒（0.5% ZnSO 4 和 1% FeSO 4 ）提高了小麦作物的产量性状和谷物的质量参数。与土壤施肥方法相比，叶面施肥方法更适合为植物提供最佳生长所需的养分。锌铁联合应用（0.