Nitrogen Management Can Increase Potato Yields and Food Security for Climate Change Adaptation in the Andean Region

Abstract

The Andean region of Ecuador is being impacted by climate change, and improved best management practices for agriculture are needed to increase yields and food security. We conducted a study comparing different nitrogen (N) rates to determine the optimum N application rate for potato (Solanum tuberosum L.) systems in this region. We examined five application rates of N: 0, 100, 200, 300, and 400 kg N ha − 1 . The results suggest that an N application rate of 300 kg N ha − 1 increased productivity and net income by 87% and 146%, respectively, compared to no application of N. We transferred these improved practices to farmers, and all farms increased their yields and net economic returns. The average yields and net economic returns for these farmers increased by 50% and 64%, respectively. Additional N use efficiency (NUE) studies are needed to continue increasing yields and economic returns for farmers in the Andean region.

Features of the choice of potato (Solanum tuberosum) varieties when growing two harvests in the temperate zone of Russia

“…It should be noted that in 2021-2022, the third decade of June and up to the (Gasparyan et al, 2021). According to scientists, over the past 100 years, there has been an increase in the average annual temperature for the whole Earth by 0.75 °C, for the territory of Russia as a whole by 1.0 °C (Gringof and Pavlova, 2013;Nemecek et al, 2012;Delgado et al, 2023), and according to A. Frolov, the head of Roshydromet, the average annual temperature in Russia is growing 2.5 times faster than in the whole world (Diykanova et al, 2020).…”