Abstract
Indonesia is a country that is rich in agricultural products, this is because of Indonesia's natural conditions that support a large expanse of land and abundant biodiversity and has a tropical climate where sunlight occurs throughout the year so you can plant all year round. The reality of natural resources like that should be able to raise Indonesia into a prosperous country and meet the food needs of all its people. The water spinach cultivation research activity was carried out on March 14 – May 11, 2022. The research was carried out on the Food Agribusiness Field at the Lampung State Polytechnic. The research method used is descriptive qualitative. In the marketing of kale, it can be seen that the revenue is Rp. 172,000, the profit is Rp. 95,900, and an R/C ratio of 2.26 is obtained. R/C Ratio > 1, so that the kale business has an advantage economically. The B/C ratio is 1.26, which means that if the expenditure on the sale of kale is Rp. 1.00, the revenue obtained is Rp. 2.26. R/C Ratio > 1, so that the kale business has an advantage economically.
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