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Home > Agronomic Practices > Yield

Sugar yield depends on cane tonnage, sugar content of the cane and on the cane quality. It is important that the cane is harvested at the most suitable time when the economic optimum of recoverable sugar per area is reached.


Cane tonnage at harvest with best management practices under drip ferti-irrigation can vary between 150 and 175 ton/ha in sub-tropical zone and between 150 to 300 tons/ha, which depends particularly on the length of the total growing period and whether it is a plant or a ratoon crop. The water utilization efficiency for harvested cane yield containing about 80 percent moisture is around 15 to 20 kg/m3


Toward maturity, vegetative growth is reduced and sugar content of the cane increases greatly. Sugar content at harvest is usually between 10 and 12 percent of the cane fresh weight, but under experimental conditions 18 percent or more has been observed. Sugar content seems to decrease slightly with increased cane yields.


Luxurious growth should be avoided during cane ripening, which can be achieved by low temperature, low nitrogen level and restricted water supply. With respect to juice purity, low minimum temperatures positively affect this several weeks before harvest.

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