tailieunhanh - Improvement of soil quality, prevention of plant diseases and yield increase of black pepper and coffee using POLYFA-TN3
In the current study, we used bio-organic product POLYFA-TN3 including beneficial indigenous microorganisms isolated in Tay Nguyen to improve soil quality, prevent plant diseases, and increase the yield of black pepper and coffee in Dak Lak province. Experimental results showed the efficiency of using POLYFA-TN3 on improvement of soil quality. Almost parameters of soil were increased after using POLYFA-TN3, of which soluble N, K, and P were significantly increased. | Vietnam Journal of Science and Technology 55 (4C) (2017) 44-50 IMPROVEMENT OF SOIL QUALITY, PREVENTION OF PLANT DISEASES AND YIELD INCREASE OF BLACK PEPPER AND COFFEE USING POLYFA-TN3 Pham Thi Thuy Hoai1, *, Ton That Huu Đat1, Nguyen Thi Kim Cuc2, Pham Viet Cuong1, Tran Dinh Man3, Phan Van Tan4 1 Mien Trung Institute for Scientific Research, VAST, 321 Huynh Thuc Khang, Thua-Thien Hue City, Viet Nam 2 Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet street, Ha Noi City, Viet Nam 3 Institute of Biotechnology, 18 Hoang Quoc Viet street, Ha Noi City, Viet Nam 4 Tay Nguyen University, 567 Le Duan street, Ban Me Thuot City, DakLak , Viet Nam * Email: phamtthoai@ Received: 1 August; Accepted for publication: 8 October 2017 ABSTRACT In the current study, we used bio-organic product POLYFA-TN3 including beneficial indigenous microorganisms isolated in Tay Nguyen to improve soil quality, prevent plant diseases, and increase the yield of black pepper and coffee in Dak Lak province. Experimental results showed the efficiency of using POLYFA-TN3 on improvement of soil quality. Almost parameters of soil were increased after using POLYFA-TN3, of which soluble N, K, and P were significantly increased. Using POLYFA-TN3 also reduced plant diseases of black pepper and coffee such as yellow leaf, slow wilt decline, anthracnose, Phytophthora root rot, coffee rust. Using kg POLYFA-TN3/tree post showed that plant diseases dropped to - % for black pepper, and 0 % for coffee. In addition, the yield of black pepper and coffee was significantly increased, with % and %, respectively. Our study indicated that the bioorganic product POLYFA-TN3 as a potential product for improvement of soil quality, crop yield, and prevention of plant diseases. Keywords: coffee, crop yield, black pepper, plant disease, POLYFA-TN3. 1. INTRODUCTION Coffee and black pepper are two major industrial trees and have a high export value of many provinces in Tay Nguyen.
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