Đánh giá chất lượng đất vùng trồng cam huyện trà ôn, tỉnh Vĩnh Long=Evaluation of quality of orange growth land in tra on district, vinh long province

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Văn Phương Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học và Công nghệ (ĐH Công nghiệp TP. HCM), 2024

Mô tả vật lý: tr.131-143

Bộ sưu tập: Metadata

ID: 244890

Thêm vào giỏ

Long-term intensive cultivation without proper management measures can lead to soil degradation. Therefore, controlling soil quality in orange growing areas in Trà Ôn District, Vĩnh Long province is necessary to protect soil quality and maintain sustainable agricultural development. The purpose of the study is to evaluate soil quality (SQI) through determining soil physical and chemical indicators and using appropriate statistical methods. Soil samples in the orange cultivation area of Tra On district, Vinh Long province were collected and analyzed for soil physical and chemical parameters including pH, electrical conductivity (EC), density (D), porosity (P%), total organic content (TOC), available phosphorus, ammonium nitrogen, water holding capacity (WHC), total phosphorus, cation exchange capacity (CEC), % clay, % silk, % sand. The research datas were used Principal Component Analysis (PCA) to determine the Minimum Data Set (MDS), which showed that there are 3 principal components explained 88.4% of the variation of the indicators and identified 4 indicators (including NH4+, pH, density, and % silt) as representatives for assessing soil quality. The highest soil quality index was found in TO 1 >
TO 3 >
TO 2 >
TO 6 >
TO 4 >
TO 5. Our findings provide evidence that soil quality evaluation method, SQI, can be a useful tool for assessing agricultural soil quality.Thâm canh lâu dài mà không có biện pháp quản lý thích hợp dễ làm thoái hóa đất. Do đó, việc giám sát chất lượng đất ở các vùng trồng cam tại huyện Trà Ôn, tỉnh Vĩnh Long là điều cần thiết để bảo vệ chất lượng đất và duy trì phát triển nông nghiệp bền vững. Mục đích của nghiên cứu là đánh giá chất lượng đất (SQI) thông qua xác định các chỉ tiêu hóa lý của đất và sử dụng phương pháp thống kê phù hợp. Các mẫu đất ở vùng trồng cam huyện Trà Ôn, tỉnh Vĩnh Long đã được thu và phân tích các thông số hóa lý của đất bao gồm pH, độ dẫn điện (EC), dung trọng (D), độ xốp (P%), tổng hàm lượng hữu cơ (TOC), lân dễ tiêu, đạm amoni, khả năng giữ nước (WHC), lân tổng, khả năng trao đổi cation (CEC), % sét, % thịt, % cát. Kết quả nghiên cứu đã sử dụng phân tích thành phần chính (PCA) để xác định tập dữ liệu tối thiểu (MDS) cho thấy có 3 thành phần chính giải thích hoàn toàn 88,4 % độ biến thiên của các chỉ tiêu và xác định được 4 chỉ tiêu (bao gồm NH4+, pH, tỉ trọng và % thịt) là đại diện để đánh giá chất lượng đất. Chỉ số chất lượng đất cao nhất ở TO 1>
TO 3>
TO 2>
TO 6>
TO 4>
TO 5. Phát hiện của chúng tôi cung cấp bằng chứng cho thấy phương pháp đánh giá chất lượng đất có thể là một công cụ hữu ích với việc đánh giá chất lượng đất nông nghiệp.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR