Factors Influencing the Rate of Decomposition of Different Types of Plant Tissue in Soil, and the Effect of the Products on Plant Growth

Abstract

and to Mr. Phillip H. Sntiith of the Massachusetts ExJ)eriment Station, for the use of the mills in which samples were ground.

Effect of Time of Application of Organic Soil Amendments on Pathogenicity of Meloidogyne Incognita on Okra

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Organic soil amendments have long been used to manage plant parasitic nematodes (Rodriguez-Kabana, 1986;Waceke and Waudo, 1993, Bridge, 1996). Soil physical and chemical characteristics, quality and quantity of the amendment (Spaulding and Eisenmenger, 1938), nematode inoculum density (Wallace, 1973;Spiegel et al 1989), time of amendment (Miller and Wihrhelm, 1966) and host plant (Thomas and Norton, 1986) are some of the factors that influence the efficacy of soil amendment against nematodes. However, no information is available on the effect of time of application of cheap and easily available organic materials on pathogenicity of Meloidogyne incognita in Kenya.

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Implications of crop residue management and conservation tillage on soil organic matter

“…Spaulding and Eisenmenger (1938) SOIL PHYSICAL PROPERTIES Crop residues play an important role in maintaining good soil physical conditions. In most climates, the removal of all residues from the field, e.g., for use as fuel or by heavy field grazing, leads to deterioration of soil physical properties (Kladivko 1994).…”