Cultural technics for high yielding corn production in southern provinces of Vietnam
Material type:
TextPublication details: Los Baños, Laguna (Philippines) PCARRD : 2000Description: p. 434-443Subject(s): Summary: Compared with 1992, corn production in the southern part of Vietnam doubled in 1995, with corn hybrids occupying about 30% of the total area. Dongnai province has the biggest corn planted area under production and the highest yield (6.6 tons/ha) of the country. For intensive corn production, we should pay a special attention to 4 important factors by order of priority. First : variety; second: hard work; third: fertilizers and fourth: water.|First: variety. Corn variety having high yield potential, good grain quality, adapted to local conditions, resistant to lodging and to major diseases and insects, is the most important factor for obtaining high yield and high economic efficiency. Since 1992, high yielding tropical corn hybrids have been introduced or developed in the country such as DK 888, DK 999, LVN 10, Cargil1919, Pacific 60, Uniseed 89, Pioneer 3011, etc. Farmers produce an average 6 to 9 tons of dry corn grains per hectare.|Second: hard working. Hard working consists mainly of:|-keeping an appropriate plant density at harvest|-keeping the crop free of insects, diseases and weeds|For full season maturing hybrids such as DK 888 and LVN 10, the suitable plant density is 50,000 plants/hectare. For intermediate maturing hybrids such as DK 999, Cargill 919, the appropriate plants density is 53,000 plants/ha. However, at harvest the plant density often is too low due to insects, drought, waterlogging occurrence etc... So we recommend farmers to sow in small pots an amount of seeds for transplanting young seeding when it is needed. The most effective method to prevent corn stem borer is using Furadan 3G or Basudin lOG granules by putting in the plant whorl. The fIrst application takes place about 15 to 25 days after sowing when insects appear on the leaves, and the second application is conducted 15 days later.|Third: fertilizers. The optimum fertilizer rates for corn hybrids are:|Nitrogen 150-200 kg/ha|Phosphorus 60-90|Potassium 30-60|so we recommend for 1000m2 of land:|DAP (18-46% N-P2O5) 15-20 kg|Urea (46% n) 25-35 kg|Potassium chloride: (60% K20) 5-10kg|-Basic application: total amount of DAP .|-First side dressing (15 DAS): 1/3 urea + 1/3 Kcl|-Second side dressing (25-30 DAS): 1/3 urea + 1/3 Kcl|-Third side dressing (40-45 DAS): 1/3 urea + 1/3 Kcl|Fourth: water. Corn needs 349 kg of water to produce 1 kg of dry matter or 6000t of water to produce 16t of dry matter (8 tons of grains + 8 tons of stalks). The most critical stage for corn is from 2 weeks before silking to 2 weeks after silking. At this stage corn crop needs the biggest amount of water. If drought occurs at this period, grain yield can be seriously affected.
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | Look under series title (Browse shelf(Opens below)) | 1 | Available | 1C631326 |
Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: CIMMYT Publications Collection Close shelf browser (Hides shelf browser)
| Look under series title Maize cultivation in paddy field research in Thailand | Look under series title Maize-based cropping, systems in the hills of Nepal: Issues and challenges for sustainable crop production | Look under series title Effects of ecological conditions and technical factors on efficiency of winter maize on wetland in the cropping systems of the red river delta in North Vietnam | Look under series title Cultural technics for high yielding corn production in southern provinces of Vietnam | Look under series title Advances in breeding specialty maize types | Look under series title QPM Breeding program in China | Look under series title Forage corn: Emerging use of maize crop in the Philippines |
Compared with 1992, corn production in the southern part of Vietnam doubled in 1995, with corn hybrids occupying about 30% of the total area. Dongnai province has the biggest corn planted area under production and the highest yield (6.6 tons/ha) of the country. For intensive corn production, we should pay a special attention to 4 important factors by order of priority. First : variety; second: hard work; third: fertilizers and fourth: water.|First: variety. Corn variety having high yield potential, good grain quality, adapted to local conditions, resistant to lodging and to major diseases and insects, is the most important factor for obtaining high yield and high economic efficiency. Since 1992, high yielding tropical corn hybrids have been introduced or developed in the country such as DK 888, DK 999, LVN 10, Cargil1919, Pacific 60, Uniseed 89, Pioneer 3011, etc. Farmers produce an average 6 to 9 tons of dry corn grains per hectare.|Second: hard working. Hard working consists mainly of:|-keeping an appropriate plant density at harvest|-keeping the crop free of insects, diseases and weeds|For full season maturing hybrids such as DK 888 and LVN 10, the suitable plant density is 50,000 plants/hectare. For intermediate maturing hybrids such as DK 999, Cargill 919, the appropriate plants density is 53,000 plants/ha. However, at harvest the plant density often is too low due to insects, drought, waterlogging occurrence etc... So we recommend farmers to sow in small pots an amount of seeds for transplanting young seeding when it is needed. The most effective method to prevent corn stem borer is using Furadan 3G or Basudin lOG granules by putting in the plant whorl. The fIrst application takes place about 15 to 25 days after sowing when insects appear on the leaves, and the second application is conducted 15 days later.|Third: fertilizers. The optimum fertilizer rates for corn hybrids are:|Nitrogen 150-200 kg/ha|Phosphorus 60-90|Potassium 30-60|so we recommend for 1000m2 of land:|DAP (18-46% N-P2O5) 15-20 kg|Urea (46% n) 25-35 kg|Potassium chloride: (60% K20) 5-10kg|-Basic application: total amount of DAP .|-First side dressing (15 DAS): 1/3 urea + 1/3 Kcl|-Second side dressing (25-30 DAS): 1/3 urea + 1/3 Kcl|-Third side dressing (40-45 DAS): 1/3 urea + 1/3 Kcl|Fourth: water. Corn needs 349 kg of water to produce 1 kg of dry matter or 6000t of water to produce 16t of dry matter (8 tons of grains + 8 tons of stalks). The most critical stage for corn is from 2 weeks before silking to 2 weeks after silking. At this stage corn crop needs the biggest amount of water. If drought occurs at this period, grain yield can be seriously affected.
English
0208|AGRIS 0201|AL-Maize Program|R01PROCE
Juan Carlos Mendieta
CIMMYT Publications Collection