ẢNH HƯỞNG CỦA CHẾ ĐỘ PHÂN BÓN ĐẾN SỨC KHỎE ĐẤT TRỒNG CHÈ TẠI HÒA LẠC - THẠCH THẤT, HÀ NỘI=THE EFFECT OF FERTILIZER REGIME ON SOIL HEALTH FOR GROWING TEA IN HOA LAC

ẢNH HƯỞNG CỦA CHẾ ĐỘ PHÂN BÓN ĐẾN SỨC KHỎE ĐẤT TRỒNG CHÈ TẠI HÒA LẠC - THẠCH THẤT, HÀ NỘI=THE EFFECT OF FERTILIZER REGIME ON SOIL HEALTH FOR GROWING TEA IN HOA LAC - THACH THAT, HANOI

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Tác giả: Ngọc Bảo Đoàn, Mạnh Khải Nguyễn, Anh Hùng Phạm, Hùng Sơn Phạm, Thị Thu Hà Phạm, Thị Việt Anh Phạm, Thị Minh Hằng Trần, Thiện Cường Trần, Đình Tuấn Vũ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2024

Mô tả vật lý: tr.129 - 134

Bộ sưu tập: Metadata

ID: 484525

Thêm vào giỏ

Bài viết trình bày kết quả bước đầu của thử nghiệm giải pháp bón phân hữu cơ kết hợp với phân bón lá nhằm phục hồi sức khỏe đất và tăng cường năng suất cây chè 33 năm tuổi trong khuôn viên Đại học Quốc gia Hà Nội, tại Hòa Lạc – Thạch Thất. Thí nghiệm được thiết kế theo kiểu khối ngẫu nhiên hoàn chỉnh với 3 lần nhắc lại ở 3 công thức là (1) Đối chứng của người dân dùng phân hóa học
(2) Phân hữu cơ và phân bón lá Organomix:nước tỷ lệ 1:500
(3) Phân hữu cơ và phân bón lá Organomix:nước tỷ lệ 1:300. Tất cả các chỉ tiêu phân tích đất nền cho thấy đất bị chua, dung tích trao đổi thấp, nghèo mùn, đạm tổng số, và nghèo dinh dưỡng dễ tiêu. Kết quả bước đầu sau 1 năm cho thấy lượng mùn và N tổng số có xu hướng tăng so với đối chứng. Do thời gian thực hiện giải pháp phục hồi ngắn, các chỉ tiêu khác như pH, CEC, Ca2+, Mg2+, Kdt và Pdt trong đất về cơ bản chưa có sự thay đổi, cần thiết kéo dài và duy trì thời gian bón phân hữu cơ, kết hợp cân đối dinh dưỡng cho cây trồng như phân phun lá để đảm bảo sản xuất bền vững. Việc phun phân bón lá tỷ lệ Organomix:nước là 1:300 cho năng suất cao hơn so với tỷ lệ 1:500. Năng suất ở công thức áp dụng giải pháp phân bón lá tỷ lệ 1:500 trên nền phân hữu cơ làm tăng năng suất chè 6%, và lên tới 54% ở công thức dùng phân bón lá tỷ lệ 1:300 so với đối chứng.This paper presents the initial results of a trial of organic fertilizer combined with foliar fertilizer to restore soil health and increase the productivity of 33-year-old tea grown in the campus of Vietnam National University, in Hoa Lac - Thach That, Hanoi. The experiment was designed in a complete randomized block design with 3 replications in 3 treatments: (1) Control of people using chemical fertilizers
(2) Organic fertilizer and Organomix foliar fertilizer: water at a ratio of 1:500
(3) Organic fertilizer and Organomix foliar fertilizer: water at a ratio of 1:300. The soil in the trial was acidic, low exchange capacity, low humic and total nitrogen, and low available nutrients. The results after 1 year applying soil rehabilitation show that the amount of humic and total N tended to increase compared to the control. Due to the short time of measures, indicators such as pH, CEC, Ca2+, Mg2+, K and P availability in the soil have not changed. It is necessary to extend and maintain organic fertilizer application combined with balanced nutrition for plants such as foliar fertilizer to ensure sustainable production. Spraying foliar fertilizer at ratio of 1:300 Organomix: water gave higher yield than that at ratio of 1:500. The yield of treatment at ratio of 1:500 plus organic fertilizer increases tea yield by 6%, and up to 54% if combined with foliar fertilizer at a ratio of 1:300 compared to the control.

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