BSc Ngo Thanh Tung

The Mekong Delta is the granary of the country, so rice is no longer strange to people in the West of the river. In early rice cultivation, one of the pests that farmers are often concerned about is weeds, this intermediate host creates conditions for pests to develop, compete for nutrients and light, making rice plants grow poorly, reducing yield and quality of agricultural products.

There are many types of weeds in rice fields, classified into 3 main groups of weeds: grass weeds ,sedge weeds and broadleaved weeds,in which sedge weeds belonging to Cyperaceae are very difficult to control because they are well adapted to the affected land. by alum, salty.To manage weeds in rice fields, farmers in the Mekong River Delta often spray a combination of many herbicides at the same time, and at the same time increase the dose used to achieve the desired weed control effect. Therefore, the use and management of herbicides in rice fields is difficult and very costly

Saigon Plant Protection Joint Stock Company has deployed many trial models of rice herbicides in the Mekong River Delta. The reality shows that the farmer models using the formula " BP pair of herbicides " give very good results with all 3 groups of weeds, including difficult-to-treat weeds such as sedge weeds. The efficiency of weed control on Echinochloa sp and Leptochloa chinensis is over 90%, absolutely safe for all rice varieties, including fastidious Japanese rice varieties or when herbicides are sprayed overlapping. In addition, using the "BP" formula will save a lot of costs compared to using other herbicides of the same type on the market

The formula “BP pair of herbicides” is a spray formula that combines 2  Butoxim 60EC + Pataxim 55EC products.

Butoxim 60EC herbicide contains active ingredient of Butachlor, which kills pre-emergence and early post- emergence weeds, and kills all 3 groups of weeds 1-3 days after sowing, weeds from 0-1 leaf. Active ingredient of Butachlor penetrates into plants through roots and shoots, so it can kill group of sedge weeds.

The Pataxim 55EC herbicide , a mixture of 2 active ingredients of Butachlor and Propanil is a post-emergence herbicide that kills all 3 groups of weeds, in the period 4-12 days after sowing, the weeds get 2-3 leaves, highly effective for the group of sedge weeds

How to use: Mix 100ml Butoxim 60EC + 90ml Pataxim 55EC for a 25 liter water dispenser, 1.5 to 2  tanks of 25-liter-watertank for one large công  (1,300m2). Spray period 4-6 days after sowing, when the weed has 1-3 leaves.

When spraying the field, it is necessary to drain the water but keep it moist. After spraying 1 to 3 days, put water in the field and keep the water level suitable for the height of the rice plants, keep the water in the field as long as possible, at least 4-5 days after spraying, avoid letting the field dry and crack after spraying.

Spraying at this time is safe for rice, gives high weed control efficiency with reasonable investment costs. Most of the farmers fields are often not level, spraying herbicides to kill sprouts early is  afraid to cause death of the rice sprouts in puddles, labor costs, rice seeds and additional costs of re-planting the rice fields, in addition, the mounds weeds that grow early  must be added cost to spray again

Ruộng lúa sạch cỏ sau khi phun công thức diệt cỏ “2BP” của SPC

Sau thời gian triển khai mô hình sử dụng “Cỏ cặp BP” ở khu vực Đồng Bằng Sông Cửu Long. Một số nông dân sử dụng “Cỏ cặp BP” của Công ty Cổ phần Bảo vệ Thực vật Sài Gòn đạt kết quả tốt, rất tâm đắc với công thức này. Điển hình là các hộ nông dân sau:

• Ông Lê Văn Út (Ấp Tà Lóc, xã Sơn Kiên, Hòn Đất, Kiên Giang)

• Ông Danh Cường (Ấp Thạnh Trị, xã Thạnh Trị, Tân Hiệp, Kiên Giang)

• Ông Trịnh Văn Trên (Ấp Tàu Hơi, xã Thạnh Trị, huyện Tân Hiệp, Kiên Giang)

• Ông Trần Minh Khương (Thị trấn An Châu, huyện Châu Thành, An Giang)

• Ông Trần Văn Hiệp (Huyện Châu Thành, An Giang)

• Ông Nguyễn Anh Tuấn (Ấp Phú Vĩnh, huyện Tân Châu, An Giang)