In their village of Siddhipur, 100 of the 1,300 households use ecosan toilets, the by-product of which are directly used for agricultural purposes.
The Environment and Public Health Organization was one of the first to initiate this project, along with other partners, in 2003, has now expanded to more than 3,000 households across Nepal.
Suman Kumar Shakya, executive director of ENPHO, said the growing links between sanitation and agriculture are encouraging.
Speaking at a workshop organized to promote ecological sanitation, he said that the steps farmers are taking is "a (positive) shift toward an organic culture."
Banking on the importance of urine, about 93 miles (150 kilometers) away from Kathmandu, in Chitwan district, users like Shreerendra Pokhrel are taking on the role of promoters.
In his village of Darechowk, the school headmaster started the concept from his house in 2006. Soon he was able to convince his neighbors as well as five schools to install ecosan toilets and couple cleanliness with cultivation.
"The children are learning about sanitation and the purpose of urine in farming and their families are implementing it and getting good results," he said.
For people like Maharjan and Pokhrel, along with other farmers who have traded urine for urea, it has opened up new possibilities -- the production is high and there's no cost associated.
"People have started realizing the value of urine," Jeevan said. "It can do wonders in the farm, and it's absolutely free."