Yam is one of the nation’s most valuable tuber crops. The demand for yam is generally very high in Nigeria.
In some societies in Nigeria, festivals are staged to mark the beginning of yam harvest while some use yam in fertility and marriage ceremonies.
The Minister for State, Federal Ministry of Agriculture, Senator Heineken Lokpobiri, said at the launch of the maiden set of improved certified seed yams (a 5-year $12 million research programme funded by the Bill and Mellinda Gate Foundation to improve yam seed) last year in Abuja, that yam is cultivated on 3 million hectares of land annually with the certified seed yam capable of generating N2.4billion if sold for N20 each.
He added that “about 48 million tonnes of the tubers are produced annually in the sub-region on 4 million hectares of land. Nigeria alone produces 36 million tonnes on 3 million hectares of land annually accounting for 68% of global production being the world’s largest producer.”
Dr. Nwaogu Edward Ngozi, Head of Station, National Root Crops Research Institute, Nyanya Sub-Station in Abuja, advised farmers to take note of important factors before planting yam.
Site selection:
He stated that yam grows well on upland soils. Being a high nutrient demanding crop, yam requires a soil that is deep, free draining, and relatively high to medium in fertility with loamy sand or clay loam characteristics. Good soil drainage is essential for optimum yields of the crop. Heavy clay soils tend to water-log in the rainy season and are liable to cause tuber rot. Infertile soils are not recommended for yam production because such soils are unable to retain sufficient water or nutrients to produce reasonably-sized tubers. Also, soils that have high amounts of gravels or stones are unsuitable as they constitute a barrier to tuber penetration and root anchorage.
No comments:
Post a Comment