Ảnh hưởng của mật độ và phương pháp trồng đến cỏ dại, sinh trưởng và năng suất ngô rau=Effects of Planting Density and Planting Pattern on Weed, Growth and Yield of Baby Corn

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Thị Loan Nguyễn, Thị Phong Thu Thiều, Thị Thiêm Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học Nông nghiệp Việt Nam, 2025

Mô tả vật lý: tr.279-288

Bộ sưu tập: Metadata

ID: 474188

Thêm vào giỏ

Nghiên cứu được thực hiện nhằm đánh giá ảnh hưởng của mật độ trồng và phương pháp trồng đến thành phần, mật độ và khối lượng chất khô của cỏ dại, cùng sinh trưởng và năng suất ngô rau. Thí nghiệm 2 nhân tố được thiết kế theo kiểu ô lớn - ô nhỏ (Split - Plot) ở vụ xuân năm 2020, tại Gia Lâm - Hà Nội, với 3 lần nhắc lại. Nhân tố ô lớn là mật độ trồng gồm 4 mức: 138.888 cây/ha (12 × 60cm)
111.111 cây/ha (15 × 60cm)
92.593 cây/ha (18 × 60cm) và 79.365 cây/ha (21 × 60cm). Nhân tố ở ô nhỏ là phương pháp trồng bao gồm trồng góc vuông (P1) và trồng nanh sấu (P2). Kết quả cho thấy, tăng mật độ trồng đã hạn chế sự sinh trưởng, phát triển của cỏ dại, đồng thời tăng năng suất bắp ngô. Tuy nhiên, phương pháp trồng góc vuông hay trồng nanh sấu không ảnh hưởng đến các chỉ tiêu sinh trưởng của cỏ cũng như sinh trưởng và năng suất ngô. Ở cùng một phương pháp trồng, tăng mật độ trồng đã làm giảm đáng kể mật độ cỏ, khối lượng chất khô của cỏ, làm tăng năng suất bắp ngô rau. Năng suất thực thu bắp đạt được cao nhất (1,69-1,77 tấn/ha) ở mật độ trồng 111.111-138.888 cây/ha khi trồng góc vuông hoặc trồng nanh sấu.This study was conducted to evaluate the effects of planting density and planting pattern on weed species, weed density and weed biomass, growth and cob yield of baby corn. The field experiment was conducted in 2020 spring in Gia Lam, Ha Noi using a split-plot design with three replications. The main plot was planting densities with four levels: 138,888 plants ha-1, 111,111 plants ha-1, 92,593 plants ha-1, and 79,365 plants ha-1. The sub-plot factor was two planting patterns: quadrate planting and triangular planting. The results showed that increasing planting density suppressed weed growth while increasing corn yield. However, the planting patterns did not affect the weed growth as well as the growth and yield of corn. With the same planting pattern, increasing planting density significantly reduced weed density and weed biomass, and increased yield of baby corn. The highest corn yield (1.69-1.77 tons/ha) was obtained at the planting density of 111,111-138,888 plants/ha combined with quadrate planting or triangular planting.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR