Cultivation of green onion has been developed widely in Tran De district, Soc Trang province, contributing to upgrade household income, however salt invasion has caused a decline in green onion production. The study aimed to determine the efficiency of salt tolerance bio-product NPISi (NPISi) on soil characteristics, growth and yield of green onion when grown on salt-affected soil in Tran De district, Soc Trang province. |