Rajni Yadav, Manu Rani*, Vikas Kumar, Sandip Kumar Gautam and Pankaj Singroha
Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana
Email: manusagwal@gmail.com
Received-01.03.2022, Revised-13.03.2022, Accepted-26.03.2022
Abstract: The use of water-holding amendments such as hydrogel polymers for improving water and nutrient use efficiency will become more important over time, especially in arid and semiarid regions with limited water availability. The hydrogel is able to retain water and plant nutrients and release them to the plants when the surrounding soil near the root zone of the plants begins to dry up. Water management is currently regarded as one of the most significant challenges facing all countries in arid and semi-arid regions; in fact, global water demand is expected to be 50% higher by 2030 than it is today, resulting in water scarcity; at the same time, the agricultural sector consumes over 70% of freshwater in most parts of the world. According to research, when soil is treated with a water hydrogel composite, its water volumetric content increases dramatically, and when the surrounding soil dries, the stored water is gently released back into the soil. The hydrogel improves plant viability, ventilation, and root development, resulting in more efficient water consumption, lower irrigation costs, and longer irrigation intervals. It also improves soil’s water holding capacity and porosity, providing plants with eventual moisture and nutrients, as well as improving plant viability, ventilation, and root development, resulting in a more conducive environment for better plant growth and, ultimately, increased crop yield. Hydrogels have a number of properties that support their usage as fertilizer release systems and soil conditioners in agricultural applications, such as high swelling and slow water retention. The agricultural sector benefits from hydrogel polymers because they can retain water and decrease soil erosion.
Keywords: Hydrogel, Soil conditioner, Water holding capacity, Crop yield, Nutrient efficiency
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