How do organic fertilizers sustain the soil fertility for a longer time?
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Organic fertilizers
Wohlfarth and Schroeder, 1979; Das and Jana, 2003; Kumar et al., 2004
Schroeder, 1978; Anderson, 1987; Colman and Edwards, 1987; Qin et al., 1995; Barkoh et al., 2005). Furthermore, through respiration the increased bacterial population generates carbon dioxide, which increases dissolved inorganic carbon available to phytoplankton, dissolves limestone to increase pond total alkalinity, and can moderate increases in pH during periods of intense photosynthesis. Also through respiration, the bacterial population consumes oxygen and heavy applications of organic matter can result in low predawn pond dissolved oxygen concentration (Qin et al., 1995). However, organic matter decomposition and nutrient mineralization occurs over days in contrast to immediate nutrient availability from chemical fertilizer.
for example, cattle, swine, is to make a manure–water slurry that is splashed over the pond surface. Poultry litter can be applied by broadcasting over the ponds surface. Poultry litter bedding material such as wood chips/shaving or rice hulls, as opposed to sawdust, can decompose and accumulate on the pond bottom, which is undesirable. Agricultural by-products, for example, alfalfa meal, rice bran, can be broadcast over the pond surface along the windward bank or mixed with water to make a slurry that is splashed over the pond surface
Wohlfarth and Schroeder, 1979; Das and Jana, 2003; Kumar et al., 2004
Schroeder, 1978; Anderson, 1987; Colman and Edwards, 1987; Qin et al., 1995; Barkoh et al., 2005). Furthermore, through respiration the increased bacterial population generates carbon dioxide, which increases dissolved inorganic carbon available to phytoplankton, dissolves limestone to increase pond total alkalinity, and can moderate increases in pH during periods of intense photosynthesis. Also through respiration, the bacterial population consumes oxygen and heavy applications of organic matter can result in low predawn pond dissolved oxygen concentration (Qin et al., 1995). However, organic matter decomposition and nutrient mineralization occurs over days in contrast to immediate nutrient availability from chemical fertilizer.
for example, cattle, swine, is to make a manure–water slurry that is splashed over the pond surface. Poultry litter can be applied by broadcasting over the ponds surface. Poultry litter bedding material such as wood chips/shaving or rice hulls, as opposed to sawdust, can decompose and accumulate on the pond bottom, which is undesirable. Agricultural by-products, for example, alfalfa meal, rice bran, can be broadcast over the pond surface along the windward bank or mixed with water to make a slurry that is splashed over the pond surface
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