Decision No. 38/2021/QD-UBND, issued on 18 November 2021 by the People's Committee of Ben Tre Province and signed by Chairman Tran Ngoc Tam, promulgates technical-economic norms in the fields of crop production, animal husbandry and aquaculture for implementing agricultural extension models and projects in Ben Tre Province. It was issued pursuant to Decree No. 83/2018/ND-CP of 24 May 2018 of the Government on agricultural extension and Circular No. 75/2019/TT-BTC of 4 November 2019 of the Minister of Finance on management and use of state-budget funds for extension activities, at the proposal of the Director of the Department of Agriculture and Rural Development in Submission No. 3783/TT-SNN of 5 November 2021. It applies to agencies, units, organisations and individuals selected or assigned by the State to implement extension models and projects in the province, and takes effect from 1 December 2021. Article 2 fixes the norms in three appendices. Appendix I covers 21 crop models, including new planting of green-skin pomelo, longan and mango (400 seedlings per hectare), durian and rambutan (200 seedlings per hectare), industrial coconut (180) and drinking coconut (250); GAP-based intensive cultivation of pomelo, longan, mango, durian and banana; coconut intercropped with citrus; organic coconut production; safe production of bitter melon, chili, cucumber, watermelon and tomato; the three-reductions-three-gains rice model (100 kg seed, 200 kg urea per hectare); and an automated crop-nutrition management system with soil temperature, moisture, EC and pH sensors plus a fertigation system. Each model specifies per-hectare quantities of seedlings, lime, urea, phosphate, potassium chloride, microbial organic fertiliser, foliar fertiliser and plant-protection chemicals. Appendix II sets norms for 18 livestock models, including meat and breeder chickens and ducks, meat and breeder pigs, specialty pigs, AI boars, dairy cattle, herd improvement by artificial insemination, beef fattening, breeder cattle, goats, honey bees and rabbits, specifying per-head support for breeding stock, compound feed by protein content and stage, vaccine doses (for example nine doses for breeder pigs), veterinary medicines and disinfectants, with implementation periods of 5 to 18 months. Appendix III sets norms for 20 aquaculture models, including intensive white-leg shrimp (stocking density up to 100 per square metre, yield at least 10 tonnes per hectare), high-density white-leg shrimp (at least 32 tonnes per hectare per crop), intensive and improved-extensive black tiger shrimp, all-male giant freshwater prawn in ponds, rice fields and coconut ditches, mud crab, pond culture of goby, snakehead, tra catfish, clown knifefish, snakeskin gourami, hybrid catfish, spiny eel and tilapia, cage tilapia, and tank culture of eel and frog, each with technical requirements on pond area, depth, stocking density, feed conversion ratio, survival rate and yield, and per-hectare seed and feed norms. The Department of Agriculture and Rural Development leads implementation and reports obstacles to the Provincial People's Committee for amendment.