Leafy greens and vegetables planted at the end of October for Tết sales: apply a small amount as a base fertilizer, then top-dress multiple times with Phú Mỹ NPK 20-7-7+TE.
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Late October is when many farmers in the Mekong Delta sow short-term leafy vegetables to be ready for harvest during Tet; leafy vegetables need nitrogen for leaf development, but due to their short cycle, it's very easy to over-fertilize. This article follows the principles of right type – right time – right amount: apply a small base fertilizer, then split top-dressing into multiple applications, using Phú Mỹ NPK 20-7-7+TE as an example.
What the manufacturer states (PVFCCo, n.d.)
NPK compound fertilizer, code 05372; total nitrogen (Nts) 20%; available phosphorus (P₂O₅hh) 7%; available potassium (K₂Ohh) 7%; TE: zinc (Zn) 50 ppm, boron (B) 50 ppm; moisture 5%; for root application; shelf life 36 months from manufacturing date. Formula interpretation: one 50 kg bag contains approximately 10 kg N, 3.5 kg P₂O₅, and 3.5 kg K₂O; clearly high in nitrogen, suitable for leafy vegetables.
Dosage framework for vegetables and crops (PVFCCo, n.d.)
Basal application: 50–200 kg/ha, or 5–20 kg/công; top-dressing: 50–300 kg/ha/crop, or 5–30 kg/công for the entire crop, divided into multiple applications. The manufacturer only states the total amount for the entire crop, not the number of applications or application dates; therefore, this article only outlines the principle of dividing into multiple applications, without specifying application dates.
Light basal application, frequent top-dressing
1. Apply a small amount for short-day leafy vegetables with shallow root systems; apply at the lower part of the bed, mixing thoroughly into the soil before sowing or planting. 2. Wait until plants have established roots before applying top dressing. 3. Divide the total amount of top dressing into multiple applications, watering after each application; avoid getting fertilizer on the leaves. 4. Stop applying nitrogen before harvest according to technical guidelines and local recommendations.
Illustrative example: for a 1 công plot of cabbage, apply 5 kg as a base fertilizer; the total top-dressing for the entire crop is 15 kg, divided into 3 applications of 5 kg each; the total for the entire crop is 20 kg/công, which falls within the manufacturer's recommended range; these figures are for estimation purposes only.
Note for the upcoming dry season: the rainy season may end early (Thúy Lam, 2026); coastal vegetable gardens need to store fresh water and measure salinity before irrigating (Dân Việt, 2026).
Conclusion: Phú Mỹ NPK 20-7-7+TE has high nitrogen, along with zinc and boron; for leafy vegetables sold during Tết, the manufacturer's recommended framework is a basal application of 5–20 kg/công and top-dressing of 5–30 kg/công for the entire crop cycle; applying less for basal, waiting for roots to establish, and splitting top-dressing applications into smaller amounts is the correct way to fertilize with the right type, at the right time, and in the right quantity.
Product reference page: NPK Phú Mỹ 20-7-7+TE. Dosage varies depending on soil, crop variety, and plant condition. For further consultation, please call Út Nữ: 02943 882069.
Reference materials
Dân Việt (2026) 'Latest seasonal calendar to "avoid" El Nino-induced salinity for the 2026-2027 winter-spring crop, what does the Department of Crop Production and Plant Protection recommend?', *Dân Việt Newspaper*, 19 June. Available at: https://danviet.vn/khung-thoi-vu-moi-nhat-ne-han-man-do-el-nio-cho-vu-dong-xuan-2026-2027-cuc-trong-trot-va-bvtv-khuyen-cao-gi-d1436554.html (Accessed: 8 October 2026).
PVFCCo (n.d.) *NPK Phú Mỹ 20-7-7+TE* (code 05372). Available at: https://dpm.vn/san-pham/npk-phu-my-20-7-7te-37 (Accessed: 12 October 2026).
Thúy Lam (2026) 'Guidance on seasonal calendar and rice variety structure for the 2026–2027 Winter-Spring crop', *Cà Mau Provincial Agricultural Extension Center*, 6 October. Available at: http://khuyennongcamau.vn/thong-tin-va-truyen-thong/huong-dan-lich-thoi-vu-va-co-cau-giong-lua-vu-dong-xuan-2026-2027-85460 (Accessed: 8 October 2026).
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Content developed by Grokbot AI. Út Nữ Co., Ltd and Grokbot AI disclaim responsibility for any damages arising from the use of information in this article. All content is for exploratory and academic purposes only, does not replace professional technical advice, official recommendations from manufacturers or state agencies, and does not constitute a commercial promise of yield or economic efficiency.