Nghiên cứu giải pháp tưới tiết kiệm nước thích ứng với thâm nhập mặn cho vườn cây sầu riêng ở xã Tam Bình, huyện Cai Lậy, tỉnh Tiền Giang=Research on solutions to adapt to saltwater intrusion for durian gardens in Tam Binh commune, Cai Lay district, Tien Giang province

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Hồng Thủy Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Nguyễn Tất Thành, 2024

Mô tả vật lý: tr.80

Bộ sưu tập: Metadata

ID: 251389

Thêm vào giỏ

Hệ thống tưới nhỏ giọt khuếch tán dưới mặt đất là một kỹ thuật tưới mới, hiệu quả và tiết kiệm, được thử nghiệm cho vườn cây sầu riêng ở xã Tam Bình, huyện Cai Lậy tỉnh Tiền Giang. Áp dụng hệ thống tưới khuếch tán dưới mặt đất với mức tưới 96 L/cây/ngày vào các khoảng thời gian cơi đọt đã thuần thục cho kết quả ẩm độ đất ở Vườn mô hình và Vườn đối chứng tương đương nhau, dao động trong khoảng >
(70-80) %
mặc dù cây ở Vườn mô hình phát triển chậm hơn với số chồi non, chiều dài chồi chính, chiều dài chồi phụ đều thấp hơn so với Vườn đối chứng nhưng kích thước lớn hơn so với Vườn đối chứng
tổng số quả trên cây của Vườn mô hình (24,80) nhiều hơn so với Vườn đối chứng (16,05) và năng suất quả (98,61 kg/cây) cao hơn so với Vườn đối chứng (61,23 kg/cây). Giải pháp vét mương, đào ao trữ nước kết hợp sử dụng hệ thống tưới nhỏ giọt khuếch tán dưới mặt đất dưới dạng tích hợp vào hệ thống tưới phun mưa sẵn có tại các nông hộ có ý nghĩa đặc biệt về kinh tế − xã hội trong trường hợp nước ngọt tưới cây trở nên khan hiếm, giúp nông dân trồng sầu riêng chủ động bảo vệ vườn cây, thích ứng lâu dài với xâm nhập mặn.Saltwater intrusion during the 2020 dry season caused heavy damage to nearly 4,459 hectares (out of a total of 14,870 hectares) of durian in Tien Giang province. The lack of fresh water for irrigation was the main cause of the damage. The underground diffused drip irrigation system is a new irrigation technique which is considered to be the most effective and economical of all current irrigation systems. Application of the underground diffused irrigation system with an irrigation level of 96 L/tree/day, which is 20 % less than the control (with water saving of 120 L/tree/day) during the mature shoot growth period resulted in similar soil moisture in the MH Garden and the DC Garden, fluctuating between >
(70-80) %. In terms of growth, the trees in the MH Garden developed more slowly with the number of young shoots, the length of the main shoot, and the length of the secondary shoots all being lower than in the DC Garden. On the contrary, the leaf size in both length and width in the MH Garden was larger than in the DC Garden. The final result was that the total number of fruits per tree in MH Garden (24.80) was higher than DC Garden (16.05) and the fruit yield (98.61 kg/tree) was higher than DC Garden (61.23 kg/tree). On the other hand, underground diffused drip irrigation systems can be integrated into existing sprinkler irrigation systems at farmers at a reasonable cost. This result has special socio-economic significance in case fresh water for irrigation becomes scarce, thus helping durian farmers proactively protect their gardens and adapt long-term to saltwater intrusion.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR