Table 2.

Advanced fertilizer forms and techniques that have been successfully used for major mineral micronutrients in different crops.

Fortification technique	Type	Crop Biofortified	References
Mineral fertilizers	Zn	Rice, Wheat, Corn, Finger Millet, Peas, Chickpea, Potato, Cowpea	Guo et al., 2016; Yamunarani et al., 2016; Poblaciones and Rengel, 2016; Shivay et al., 2016a; White et al., 2017; Maqbool and Beshir., 2019; López-Morales et al., 2020
	Fe	Rice, Wheat, Corn, Finger Millet, Peas, Chickpea, Cowpea	Kabir et al., 2016; Aziz et al., 2019; Pal et al., 2019; Prom-U-Thai et al., 2020; López-Morales et al., 2020; Grujcic et al., 2021; Khobragade et al., 2022
	Cu	Eggplant, Wheat, Corn, Finger Millet, Cowpea	Tuhy et al., 2015; Yamunarani et al., 2016; Aziz et al., 2019; López-Morales et al., 2020; Bana et al., 2021
	Mn	Wheat, Corn, Finger millet; Cowpea,	Tuhy et al., 2015; Klikocka and Marks, 2018; López-Morales et al., 2020
Biofertilizers	Zn	Corn, Wheat, Barley, Soybean, Parsley, Mentha	Ramesh et al., 2014; Ramesh et al., 2014; Prasanna et al., 2015; Coccina et al., 2019; Gashgari et al., 2020; Gashgari et al., 2020
	Fe	Corn, Parsley, Mentha, Mungbean	Sharma and Johri, 2003; Patel et al., 2018; Gashgari et al., 2020
	Mn	Parsley, Mentha	Gashgari et al., 2020
	Cu	parsley, Mentha	Gashgari et al., 2020
	Se	Wheat, Shallot, Chickpea	Yasin et al., 2015a; Golubkina et al., 2019
Chelates	Zn	Unhusked Rice, Chickpea, Rice, Wheat, Pear,	Shivay and Prasad, 2012; Shivay et al., 2015; Koksal et al., 1999; Zhao et al., 2014
	Fe	Wheat, Soybean, Cowpea, Pear	Koksal et al., 1999; Ghasemi et al., 2013; Márquez-Quiroz et al., 2015; Sharma et al., 2019
	Mn	Cowpea, Pear	Koksal et al., 1999; Márquez-Quiroz et al., 2015
	Cu	Pear, Wheat	Modaihsh, 1997; Koksal et al., 1999
Nanofertilizers	Zn	Okra, Wheat, Corn, Maize, Coffee,	Yahyaoui et al., 2017; Deshpande et al., 2017; Wang and Nguyen, 2018; Choudhary et al., 2019; Tarafder et al., 2020
	Fe	Okra, Corn, Soybean, Wheat	Li et al., 2016; Sharma et al., 2019; Al-Juthery et al., 2019; Tarafder et al., 2020
	Cu	Okra, Maize, Wheat	Al-Juthery et al., 2019; Tarafder et al., 2020; Sharma et al., 2020
	Mn	Wheat, Lettuce	Liu et al., 2016; Al-Juthery et al., 2019
	Se	Garlic, Groundnut	Li et al., 2020; Hussein et al., 2019
Integrated nutrient management	Zn	Wheat, Cauliflower, Maize, Peanut	Prasad et al., 2012; Yadav et al., 2014; Tariq et al., 2014; Klikocka and Marks, 2018
	Fe	Wheat, Soybean, Sugarcane (stalk)	Caliskan et al., 2008; Mishra et al., 2014; Klikocka and Marks, 2018
	Mn	Wheat, Tomato, Sugarcane (stalk)	Kleiber, 2014; Mishra et al., 2014; Klikocka and Marks, 2018
	Cu	Wheat, Spinach	Obrador et al., 2013; Klikocka and Marks, 2018