Table 7 Changes in application of fertilizers in Kanaya-Machi, Shizuoka prefecture, Japan, 1877-1977.
Year	Major fertilizer	Rice		Barley		Tea
		Plains	Mountains	Plains	Mountains	Plains	Mountains
1877	Natural organics	Grass	Grass	Night soil	Unknown	Soybean meal, shrimp	Unknown
1887
1897	Green manure and organic by-products	Grass, compost, soybean and fish meal	Grass, compost, soybean and fish meal	Night soil, compost, soybean meal, superphosphate	Night soil, compost	Soybean meal, shrimp, organic mixes
1907		Grass, compost, soybean and rapeseed meal, spent distillery mash, green soybean	Grass, soybean and rapeseed meal, seaweed	Night soil, compost, soybean meal, superphosphate	Night soil, compost, superphosphate	Night soil, shrimp, organic mixes, soybean meal, green soybean
1917		Grass, compost, soybean and rapeseed meal, sodium nitrate, ammoniated superphosphate	Grass, soybean and rapeseed meal, ammonium sulfate, superphosphate	Night soil, compost, superphosphate, soybean meal, ammonium sulfate	Night soil, compost, superphosphate	Night soil, meal, organic mixes, shrimp	Soybean and fish meal
1927	Chemical	Grass, compost, fish meal, ammonium sulfate, sodium nitrate, mixed	Grass, compost, night soil, organic mixed fertilizers, superphosphate, ammonium sulfate, sodium nitrate	Night soil, compost, meal, ammonium sulfate, superphosphate, mixed	Night soil, compost, meal, ammonium sulfate, superphosphate, mixed	Night soil, meal, green soybean, organic mixes	Grass, organic mixes, superphosphate, ammonium sulfate
1937		Compost, fish meal, ammonium sulfate, superphosphate, potassium chloride, calcium cyanamide ammonium phosphate, mixed	Grass, compost, wood ash, night soil, ammonium sulfate, calcium cyanamide, superphosphate, potassium chloride, mixed	Night soil, compost, ammonium sulfate, superphosphate	Night soil, compost, ammonium sulfate, superphosphate, mixed	Superphosphate, ammonium sulfate, mixed	Rapeseed meal, grass, ammonium sulfate, mixed
1947		Rapeseed meal, ammonium sulfate, calcium cyanamide, potassium chloride, fused phosphate, mixed	Night soil, compost, ammonium sulfate, potassium chloride, urea, fused phosphate, mixed	Night soil, compost, potassium chloride, ammonium sulfate, calcium cyanamide, mixed	Night soil, compost, ammonium sulfate, superphosphate, mixed	Grass, ammonium sulfate, calcium cyanamide, mixed	Fish and rapeseed meal, ammonium sulfate, calcium cyanamide, urea, mixed
1957		High synthetic, low synthetic compound, calcium cyanamide (granular, dust), calcium cyanamide compound, potassium phosphate ammonium mixed, special compound for rice seedling bed, silic calcium, ammonium chloride, magnesium lime, mixed, urea intermixed compound, ammonium potassium compound1		Low synthetic compound	None grown	Superphosphate of lime, fused phosphate, potassium chloride, potassium sulfate, low synthetic compound, high synthetic compound, organic matter intermixed compound, multiphosphate, phosphate potassium ammonium mixed, phosphate ammonium nitrate, potassium mixed, magnesium lime, fish meal, seed cake, chicken droppings, ground bonemeal, ground composts1
1977
1The distinction between plains and mountains has tended to disappear as a result of continued modernization.

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