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Hou, X., Wang, X., Li, R., Jia, Z., Liang, L., Wang, J., Nie, J., Chen, X. and Wang, Z. (2012) Effects of Different Manure Application Rates on Soil Properties, Nutrient Use, and Crop Yield during Dry Land Maize Farming. Soil Research, 50, 507-514. https://doi.org/10.1071/SR11339

has been cited by the following article:

• TITLE: Evaluation of Soil Mineral Nitrogen under Different Organic and Inorganic Fertilization in Central Kenya

  AUTHORS: Josephat Murunga Mungoche, Moses Moywaywa Nyangito, Oscar Kipchirchir Koech

  KEYWORDS: Nitrogen Fertilizers, Mineral N, Organic Fertilizers, Inorganic Fertilizers

  JOURNAL NAME: Open Access Library Journal, Vol.10 No.12, December 27, 2023

  ABSTRACT: As part of an agricultural intensification strategy to increase livestock feed productivity, an agronomic trial was set up in Central, Kenya. The agronomic trial followed a Randomized Complete Block Design (RCBD) with three replicate plots measuring 4 meters by 2 meters per treatment. The treatments comprised of NPK fertilizer, Farmyard Manure (FYM), Farm Yard Manure + Biochar (FYM-BC), Bioslurry (all at 45 kg N·ha-1), Lablab intercropping (Biological Nitrogen Fixation), and Control treatment (no fertilizer). GenStat Statistical analysis of variance among the treatment means significantly influenced ammonium (NH4+) and nitrate (NO3-) availability in the soil (p 4+ concentration was recorded under NPK (21.20 ± 27.01 μg·g-1 dry matter (D.M.), while the lowest NH4+ concentration was recorded under Lablab treatment (6.62 ± 8.02 μg·g-1 D.M.). Like NH4+, significantly higher (61.41 ± 38.83 μg·g-1 D.M.) NO3- concentration was observed under NPK plots, while the lowest concentration (37.09 ± 25.15 μg·g-1 D.M.) was recorded under Lablab. These findings indicate that NPK releases plant-available mineral N faster than organic fertilizers, which could lead to faster plant growth and higher N leaching losses compared to the slow-release organic fertilizers.