The agricultural sector worldwide is facing many issues relating to crop productivity due to the lack of communication between extension workers and farmers. To reduce this gap, information technology like mobile phones are one of the essential communication devices in numerous fields as well as agriculture. This review aims to analyze mobile phone usage in agricultural modernization and rural development. The advancement of the agricultural sector in rural areas is essential for reducing poverty among growers. As we all know, agricultural activities provide employment opportunities and generate income in rural areas. Poverty can be decreased by advancement in the agriculture sector for better production. Agriculture production, socioeconomic conditions, and food security can be improved by increasing the usage of mobile phones for easy and accurate agricultural knowledge sharing to the farming community.

Salinity is a major abiotic stress which limits crop production, especially under rainfed conditions. Selenium (Se), as an important micronutrient, plays a vital role in mitigating detrimental effects of different abiotic stresses. The objective of this research was to examine the effect of Se fertilization on black gram (Vigna mungo) under salt stress. Our results showed that salt stress (100 mM NaCl) in leaves significantly induced oxidative damage and caused a decline in relative water content, chlorophyll (Chl), stomatal conductance (gs), photochemical efficiency (Fv/Fm), sucrose, and reducing sugars. A low dose of Se (1.5 ppm) significantly reduced hydrogen peroxide content, malondialdehyde formation, cell membrane damage, and also improved antioxidative enzyme activities, including superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, and glutathione peroxidase under salt stress. Se-treated plants exhibited higher Chl, gs, Fv/Fm, sucrose, and reducing sugars than untreated plants in response to salt stress. In addition, Se application enhanced Se uptake and reduced Na+ uptake, but Cl− remained unaffected. Our results indicated that a low dose of Se effectively alleviated salt damage via inhibition of Na+ uptake and enhanced antioxidant defense resulting in a significant decrease in oxidative damage, and maintained gaseous exchange and PS II function for sucrose and reducing sugars accumulation in black gram.