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中国种植甘蔗面积居世界第三,主产蔗区主要分布广东、广西、福建、四川等南方12个省(自治区)。20世纪80年代中期以来,中国的蔗糖产区迅速向广西、云南等西部地区转移,其蔗糖产量已占全国的70.6%。甘蔗是一种一年生或多年生热带和亚热带草本植物,生长周期长,需肥量大。甘蔗各个生长时期均要保持肥料的充足供给,否则对产量影响较大。“红四方”缓释肥养分释放期在30~180天内调控且膜材具有生物降解性。为验证“红四方”缓释
The area of sugarcane planted in China ranks third in the world. The main sugarcane growing areas are mainly distributed in 12 provinces (autonomous regions) in south China such as Guangdong, Guangxi, Fujian and Sichuan. Since the mid-1980s, China’s sucrose production has rapidly shifted to western regions such as Guangxi and Yunnan. Its sucrose production accounts for 70.6% of the national total. Sugarcane is a annual or perennial tropical and subtropical herb that grows long and requires a large amount of fertilizer. Sugar cane must maintain a sufficient supply of fertilizer in all growth stages, otherwise it will have a great impact on the yield. “Red Sifang ” slow-release fertilizer nutrient release period in 30 to 180 days regulation and membrane biodegradability. To verify “Red Sifang ” sustained release