The efects of no-till farming system and soil mulching on growth and yield of corn variety vs71 in slopping land at yen bai province

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Tác giả: Văn Minh Đặng, Hải Hiếu Hoàng, Trung Kiên Trần

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí khoa học và công nghệ - đại học thái nguyên, 2020

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ID: 489224

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Nghiên cứu ảnh hưởng của làm đất tối thiểu và che tủ đất đến sinh trưởng và năng suất giống ngô lai VS71 được thực hiện trong hai vụ(:) Xuân Hè 2017 và Hè Thu 2017 tại huyện Văn Yên, tỉnh Yên Bái. Mục tiêu của nghiên cứu nhằm xác định phương pháp canh tác thích hợp tăng năng suất ngô, hạn chế xói mòn rửa trôi và tăng độ phì cho đất. Thí nghiệm 2 nhân tố với 9 công thức gồm nhân tố chính là vật liệu che tủ thân cây ngô (3 mức(:) D1, D2, D3) và nhân tố phụ là phương thức làm đất (3 mức(:) S1, S2, S3). Kết quả nghiên cứu cho thấy(:) Công thức che tủ 4 tấn/ha làm giảm tỉ lệ đất bị xói mòn rõ rệt. Biện pháp làm đất tối thiểu và che tủ đất không ảnh hưởng nhiều đến thời gian sinh trưởng của giống ngô lai VS71 trên đất dốc tại huyện Văn Yên, tỉnh Yên Bái. Áp dụng làm đất tối thiểu và che tủ đất tăng chiều cao cây, chiều cao đóng bắp, các yếu tố cấu thành năng suất của giống ngô lai VS71. Biện pháp làm đất tối thiểu và che tủ đất làm tăng năng suất ngô rõ rệt so với phương pháp canh tác truyền thống. Công thức S2D3 (không cày bừa, rạch hàng, che tủ 4 tấn/ha) thích hợp cho canh tác giống ngô VS71 trên đất dốc tại địa bàn huyện Văn Yên, tỉnh Yên Bái.Study the effects of no-till farming system and soil mulching on growth and yield of corn variety VS71 has been carried out in the two continuous crop seasons(:) Spring - Summer and Summer -Auturm season of 2017 at Van Yen district, Yen Bai province. The objective of the study was to identify appropriate cultivation methods to increase corn yield, limit erosion, and increase soil fertility. The two factorial experiment with 9 treatments was layed out, in which mulching materials by using corn stem is the main factorial (with 3 level D1, D2, D3) and no-till systems (with 3 levels(:) S1, S2, S3). Results indicated that mulching by (4 tons of mulching materials ha-1) reduced soil loss from erosion. Applications of no-till farming system and soil mulching have not affected on growth duration of corn variety VS71 in slopping land at Yen Bai. In addition, this method has increased plant height, yield components and consequently, it increased crop yield compared to traditional practice. The treatment S2D3 (with no ploughing, slitting line and muclching by 4 tons of mulching materials ha-1) was more suitable to growing of corn variety VS71 in slopping land at Van Yen district, Yen Bai province.

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