Sulfur-calcium oxide/quicklime or apog (SQL) as foliar fertilizer for mangosteen
1997
Saldivar, E.L. (Department of Agriculture, Amas, Kidapawan, Cotabato (Philippines). Central Mindanao Integrated Agricultural Research Center)
Sulfur and calcium are abundant in nature and farmers can formulate their own foliar fertilizer at least cost to enhance growth, produce off-season fruits, and increase the yield of mangosteen. Results of the study on the effect of formulated SQL [Sulfur-calcium oxide/quickline] foliar fertilizer on the growth and yield of mangosteen showed that application of SQL as foliar fertilizer within the range of 1:35 to 1:55 (1 part SQL: 35 to 55 parts water) before flowering, during fruit development, maturation, and after harvest significantly enhanced the growth of mangosteen. Nine periods of profused vegetative flush production were observed within a 2-year duration. Tree sprayed with SQL produced three harvest periods within 24 months with a total yield of 3.9 ton/ha as against 0.6 ton/ha obtained in control plants. The cost of the foliar fertilizer was P1,960
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