Fertilizer is a powerful productivity-enhancing input, but SSA uses very little. Historical trends are abysmal (Figure 1). In 1970, SSA used <5kg/ha while other developing regions used >15 kg/ha. In the 25 years from 1970 to 1995 fertilizer consumption grew only .23 kg/ha/year. Current use is only 9 kg/ha, down from OBJECTIVES AND METHODS: The research highs of 11-12. This contrasts sharply wit...

Abstract The use of artificial chemical fertilizers that are very intensive and not in accordance with the availability soil nutrients, has a negative impact on decreasing agricultural fertility vegetable productivity. aim this experiment was to obtain an effective efficient dose compound fertilizer (Ca N) for potato plants Andisol type, Lembang. carried out at Margahayu Experimental Field Indo...

The experimentation entitled Effect of different organic manure and inorganic fertilizer on growth, yield quality okra (Abelmoschus esculentus L.) during kharif (Rainy) season at Horticulture Research Farm, Department Horticulture, Naini Agricultural Institute, Sam Higginbottom University Agriculture, Technology &amp; Sciences, PRAYAGRAJ (UP) 2022. Due to the heavy application chemical fertiliz...

Nutrient availability is an important factor in crop production, and regular addition of chemical fertilizers is the most common practice to improve yield in agrosystems for intensive crop production. The use of some groups of microorganisms that have specific activity providing nutrients to plants is a good alternative, and arbuscular mycorrhizal fungi (AMF) enhance plant nutrition by providin...

We carried out a one year (2002) study of phosphorus (P) loss from soil to water in three nested grassland catchments with known P input in chemical fertilizer and animal liquid slurry applications. Chemical fertilizer was applied to the grasslands between March and September and animal slurry was applied over the twelve months. The annual chemical P fertilizer applications for the 17 and 211 h...

in order to comparison the foliar application of biological, biostimulator and chemical fertilizers on growth characteristics and yield of saffron, a factorial experiment was conducted in a completely randomized block design with four replication in 3- year field of saffron in dargaz, khorasan razavi province from 2010 to 2011. the first factor had 5 levels included biostimulator fertilizer bio...