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This as practically four times as much winter cane as we have ever planted before . This was largely because of confusion over the eligibility of sugar cane as a qualifying crop , as many workers would have been eligible for SAW status had work in sugar cane been counted toward the 90 day work requirement . In the San Francisco Valley in Brazil , for example , water resources are primarily used to irrigate fruit and sugar cane for export . Principles of biochemistry , molecular biology , chemistry and chemical engineering are employed to improve the nutritive quality of soybean meal and reduce the pollution from excess phosphate in animal excreta by enzymatic ( phytase ) supplementation of feed to improve availability of phosphate , formulation of biological pathogens for control of crop pests to reduce dependence on chemical pesticides , develop innovative processes which enhance utilization of oilseed products and by-prod ucts , develop technology for utilization of cereal and oilseed byproducts to remove toxic compounds found in wastewater effluents , develop enzymatic processes to increase the reactivity of vegetable oils to produce industrial oils of added value , develop innovative processes to improve the wet-milling of corn and yield products with high-purity and desirable performance , develop improved processes for sugar refining which reduce decomposition of sucrose and other sugars during the refining process , and im prove the juice quality of sugar cane by identifying the genes which control the synthesis of key enzymes in the formation of sucrose . Therefore , even assuming arguendo that the question was asked before the discharge , the question canes within the sec .