Titlebook: Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa; A. Uzo Mokwunye Book 1991 Springer Science+Business Me

anthropologist

Affable

Management of fertilizer research data: General concepts,ng efficient use of fertilizers. Although several constraints limit the usefulness of fertilizers, progress has been made through careful experimentation in identifying and removing these constraints. In West Africa, sustainable agriculture is impossible in the absence of fertilizers because of the

Blood-Clot

Overcoming soil nutrient constraints to crop production in West Africa: Importance of fertilizers ance, their fertility has become perilously low and the task of increasing or even maintaining the productive capacity of these soils has become perhaps the greatest challenge to agricultural scientists in this latter half of the 20th century..Water is useful not only for the growth of plants but als

性上瘾

,Utilisation efficace des engrais azotés pour une augmentation de la production vivrière: L’expérienion with the International Fertilizer Development Center (IFDC). Results show that crop needs for N, P, and S depend on the plant characteristics, climatic and edaphic factors. In Saria, at the northern tip of the Sudan zone, application of 30 kgN/ha, 13.2 kg P/ha and 25 kg K/ha produced the highest

PALL

BRAWL

尽管

artless

interference

progestin