The Mindoro and Calamba companies, controlling 55,000 and 20,000 acres respectively, and the San Cárlos Milling company of San Cárlos, Negros, have erected the first and only modern sugar mills in the Philippines, and they have gone into cane cultivation and sugar manufacture in a scientific way. The management of these three enterprises has been entrusted to men who have had thorough field and factory experience in Hawaii.
Unlike the other two large companies, the San Cárlos Milling company operates a central pure and simple. The company owns no land except the site for the mill and the outbuildings connected with it. It has, however, acquired leases of a certain amount of railway trackage. The capacity of the mill is 1000 tons of cane per day, which means about 125 tons of centrifugal sugar. It was completed at the end of 1913 at a cost of about one million dollars, and the first cane ground was from the 1914 crop.
In the Philippines cane is not planted every year. Herbert S. Walker, in his work “The Sugar Industry in the Island of Negros” (Manila, 1910), says: “A decidedly large proportion of the total land under cultivation in Negros is not replanted every year, but is allowed to ratoon, from two to eight crops being taken off without replanting. This is especially true in the rich soils of the districts around Ilog-Cabancalan, Binalbagan-Isabela, San Cárlos and Bais. Theoretically, cane planted in some of these alluvial soils, which are flooded and fertilized each year by silt brought down from the mountains by the overflow of a river, might go on ratooning indefinitely. Practically, the period between plantings is limited strictly by financial considerations.
“Much time and expense are saved by not being obliged to replant. On the other hand, the yield from plant cane is, as a rule, greater than even from first ratoons, and with each successive ratoon crop the total amount of sugar produced per hectare of land is decidedly diminished. This is partially due to the shorter time in which the cane is allowed to ripen. Owing to excessive rains prevalent in this country, canes must be cut every year, and the practice so common in Hawaii of allowing ratoons to ripen for eighteen months or more, is here out of the question. A further obstacle, especially when canes are planted closely in rows, is the tendency of ratoons to spread out in every direction from the original plant so that in the course of a few years the cane rows lose all semblance of regularity, and proper tillage of the soil is rendered very difficult; thus many young ratoons are stunted in their growth by weeds.”
OLD WATER-DRIVEN MILL, ISLAND OF NEGROS, PHILIPPINES
MILL DRIVEN BY WATER POWER, OCCIDENTAL NEGROS, PHILIPPINES
The time of planting in most parts of the islands is usually from December until April, but in Negros, where the soil is good and the rainfall well distributed, planting can be done at almost any time, except during the period of very heavy rains, i. e., from July to October.
The yield of sugar per acre may be approximated as follows: