KẾT QUẢ NGHIÊN CỨU ẢNH HƯỞNG CỦA THỜI VỤ GIEO TRỒNG ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÀ NĂNG SUẤT CÂY SACHI TRONG VỤ HÈ - THU NĂM 2018 TẠI HUYỆN TRIỆU SƠN, TỈNH THANH HÓA

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Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Hồng Đức, 2020

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Nghiên cứu ảnh hưởng của thời vụ gieo trồng đến sinh trưởng, phát triển và năng suất cây Sachi được tiến hành trong vụ Hè - Thu năm 2018 tại huyện Triệu Sơn - Thanh Hóa. Thí nghiệm gồm 4 công thức tương ứng với 4 thời vụ gieo trồng (TV1: gieo hạt ngày 5/6/2018, trồng ngày 9/7/2018
TV2: gieo hạt ngày 20/6/2018, trồng ngày 24/7/2018
TV3: gieo hạt ngày 6/7/2018, trồng ngày 9/8/2018 và TV4: gieo hạt ngày 21/7/2018, trồng ngày 24/8/2018) theo phương pháp khối ngẫu nhiên đầy đủ (RCB), 3 lần nhắc lại, diện tích ô 60 m2, chiều rộng 2 m, chiều dài 15 m. Mật độ trồng 3.333 cây/ha (khoảng cách 2,0 m × 1,5m). Kết quả nghiên cứu cho thấy: Thời vụ 3 năng suất hạt thực thu sau 4 đợt thu quả đạt cao nhất (5,21 tấn hạt/ha) cao hơn các thời vụ khác trong thí nghiệm ở mức sác xuất có ý nghĩa thống kê với LSD0.05 = 0,26 tấn/ha. Đồng thời mức độ nhiễm các loại sâu bệnh hại cũng thấp nhất. Như vậy, thời vụ gieo trồng cây Sachi trong vụ Hè - Thu năm 2018 tại huyện Triệu Sơn - Thanh Hóa được xác định là gieo hạt ngày 6/7/2018, và trồng ngày 9/8/2018.The research on the influences of the planting season on growth, yield of Sachi in Spring - Summer season, 2018 at Trieu Son district, Thanh Hoa province. The experiment was designed in randomized complete block (RCB) with four treatments and three replications in Spring- Summer season 2018. The treatments were included with 4 planting seasons such as 1) The planting season 1 (TV1): The sowing date was on 5th of June, 2018 and the planting date was on the 9thof July, 2018
2) The planting season 2 (TV2): the sowing date was on the 20th of June, 2018 and the planting date was on the 24th of July, 2018
3) The planting season 3 (TV3): The sowing date was on the 6th of July, 2018 and the transplanting date was on 9th of August, 2018
4) The planting season 4 (TV4): the sowing date was on the 21st of July, 2018 and the transplanting date was on the 24th of August, 2018. The planting density was 3.333 plants/ha. The study result showed that after four times harvesting, the real seed yield of Sachi of the planting season 3 (TV3) obtained the highest (5.21 tons/ha), and higher than other treatments at a statistically significant probability with LSD0,05= 0.26 tons/ha. In addition, the Sachi of the planting season 3 had highest ability tolerance of disease. To summary, the sowing date was on the 6th of June, 2018 and the transplanting date was on 9th of August, 2018 that was suitable for Sachi grew and got the highest yield at Trieu Son district, Thanh Hoa province.

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