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1. Again, Sangatan and Sangatan (2000) enumerated the sources of organic fertilizer as follows: ● Animal wastes: cattle, carabao, pig, goat, poultry, and horse manure or urine, etc. ● Crop wastes: rice straw, corn stalks, weeds, stubbles, plant leaves, husks, etc. ● Human inhabitation wastes: night soil, sewage, and garbage ● Green manure: ipil-ipil leaves, legumes, and madre de cacao leaves ● Water crops or plants: water hyacinth (water lily), water alligator, and water lettuce ● Biological organic sources: azolla, and blue green algae ● Silt, river mud, and pond mud ● By-product of biogas digester, digested sludge, and effluent ● Other sources: animal bone, ash, seaweeds, and guano (bat manure) 2. Inorganic (chemical) fertilizers) usually result from chemical processes such as sulfuric acid treatment or rock phosphate to produce superphosphate. It consists of materials processed or transformed into a chemical material or fertilizer. Types of fertilizer based on the fertiliz

2. Again, Sangatan and Sangatan (2000) enumerated the sources of organic fertilizer as follows: ● Animal wastes: cattle, carabao, pig, goat, poultry, and horse manure or urine, etc. ● Crop wastes: rice straw, corn stalks, weeds, stubbles, plant leaves, husks, etc. ● Human inhabitation wastes: night soil, sewage, and garbage ● Green manure: ipil-ipil leaves, legumes, and madre de cacao leaves ● Water crops or plants: water hyacinth (water lily), water alligator, and water lettuce ● Biological organic sources: azolla, and blue green algae ● Silt, river mud, and pond mud ● By-product of biogas digester, digested sludge, and effluent ● Other sources: animal bone, ash, seaweeds, and guano (bat manure) 2. Inorganic (chemical) fertilizers) usually result from chemical processes such as sulfuric acid treatment or rock phosphate to produce superphosphate. It consists of materials processed or transformed into a chemical material or fertilizer. Types of fertilizer based on the fertiliz

3. Again, Sangatan and Sangatan (2000) enumerated the sources of organic fertilizer as follows: ● Animal wastes: cattle, carabao, pig, goat, poultry, and horse manure or urine, etc. ● Crop wastes: rice straw, corn stalks, weeds, stubbles, plant leaves, husks, etc. ● Human inhabitation wastes: night soil, sewage, and garbage ● Green manure: ipil-ipil leaves, legumes, and madre de cacao leaves ● Water crops or plants: water hyacinth (water lily), water alligator, and water lettuce ● Biological organic sources: azolla, and blue green algae ● Silt, river mud, and pond mud ● By-product of biogas digester, digested sludge, and effluent ● Other sources: animal bone, ash, seaweeds, and guano (bat manure) 2. Inorganic (chemical) fertilizers) usually result from chemical processes such as sulfuric acid treatment or rock phosphate to produce superphosphate. It consists of materials processed or transformed into a chemical material or fertilizer. Types of fertilizer based on the fertiliz