Nghiên cứu ảnh hưởng của lượng giống gieo sạ đến sinh trưởng, phát triển và năng suất giống nếp ngự sa huỳnh tại tỉnh Quảng Ngãi

Abstract

The study was conducted to determine the appropriate amount of seeds to sow for Ngu Sa Huynh sticky rice variety in Quang Ngai province. The experiment included 5 treatments corresponding to 5 seed amounts (60, 80, 100, 120 and 140 kg/ha, of which 100 kg/ha was the control) arranged in a randomized complete block design method (RCBD), three replications in the Fall season of 2022 and in the Winter-Spring season of 2022-2023. The results have determined that the amount of seed sown at 120 kg/ha gave the highest yield and profit, the yield reaches 3.41 tons/ha and profit reaches 29.5 million VND/ha (increase of 2.91 million VND/ha compared to the control) in the Fall season of 2022, the yield reaches 4.15 tons/ha and profit reaches 44.9 million VND/ha (increase of 1.09 million VND/ha compared to the control) in the Winter - Spring season of 2022-2023. The amount of CO₂ absorbed by Ngu Sa Huynh sticky rice variety in the Fall season of 2022 is 13.87-15.17 tons CO₂/ha and in the Winter - Spring season of 2022 - 2023 is 15.37 - 17.36 tons CO₂/ha.