Effect of tree foliage of locust bean ( Parkia biglobosa ) and neem ( Azadirachta indica ) on soil fertility and productivity of maize in a savanna alfisol
Nutrient Cycling in Agroecosystems(2002)
摘要
Organic matter (OM) management is key to sustainable fertility and productivity of tropical soil systems. Short-term evaluation of the potentialsof foliage of neem and locust bean in soil fertility improvement, as measured by the productivity of maize, was carried out on a savanna Alfisol from 1995 to1997. The trees are indigenous to the savanna, and common in farms and homesteads in the region. The objective was to determine the effects of theseeasily renewable and cheap OM sources on maize response to applied inorganic fertilizer and soil chemical properties. Treatments consisted of three sourcesof organic matter: no-OM, neem and locust bean, and three rates of inorganic fertilizer, applied at 0, 1/4 and 1/2 of the recommended rate of120–27–50 NPK for maize, which in addition served as check. Results obtained over the three seasons were consistent, and revealed that neem wassuperior to locust bean by a factor of 2 and also to no-OM treatments, but were all inferior to the recommended fertilizer rate (with a maximum yield of 3.75t/ha). Isolated relative effects for neem and locust bean only in the third year were 138
更多查看译文
关键词
Fertilizer lignin, Locust bean, Maize, Neem, Polyphenol, Relative yield, Savanna
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络