Effects of Organic and Inorganic Fertilizers on Soil Chemical Properties and the Production of Cocoa (Theobroma cacao L.) in Madai, Kunak, Sabah

The global demand for crop production has led to an increased in the use of inorganic fertilizer. However, single and long-term use of inorganic fertilizer negatively affects the environment and soil structure. Alternatively, organic materials can be composted and used as fertilizer. Although organic fertilizers have low nutrient concentration and solubility, they slowly release nutrients, making them available for a more extended period. Moreover, the waste by-products such as biomass and manure from plantations and livestock farms are readily available in abundance. Therefore, this study was... Mehr ...