... TT-Hue and Nghe An corresponding to the drop in salinity and pH of the water. 10Comparison of price of seed, feed and shrimp product The price of input materials and output product is the ... trials for BMP development: Two types of common farming systems practiced by household farmers: semi -intensive and improved extensive. In the semi -intensive systems, a group of 20-30 farms in each ... Total income, total cost and benefit Table 6 presents the results of total cost, total income and benefit of BMP, non-BMP and Baseline groups in provinces of Nghe An, Ha Tinh and TT-Hue. In this...