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我国蔗区生态农业,据有关方面调查,土壤有机质和养分含量普遍缺乏,土壤结构严重破坏,酸性上升,沙化加剧,保水保肥力差,尤以旱地红壤最为突出,有机质含量均在1.5％以下,含氮量低于0.08％,全部处于缺乏状态。农药用量大,天敌减少,病虫害种类增加,有的为害程度加重,这些都严重影响甘蔗和蔗区其它作物产量的提高。因此建立我国蔗区合
The sugarcane area of ecological agriculture, according to the investigation of relevant parties, the general lack of soil organic matter and nutrient content, serious damage to the soil structure, acidity, desertification, water and fertilizer poor, especially in dry red soil most prominent organic matter content below 1.5% Nitrogen content of less than 0.08%, all in a deficient state. Large quantities of pesticides, natural enemies reduced, pests and diseases increased, and some increased the degree of harm, which have a serious impact on sugar cane and other crops yield increase. Therefore, the establishment of China’s sugarcane area