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硫作为植物生长所需的第四大元素,能改良土壤,提高作物品质,减少植物病虫害。硫包衣尿素(简称SCU)是国际上工业化生产技术最成熟的缓释肥料品种。硫包衣尿素通过在尿素外面包裹硫磺、微晶蜡密封剂制成。在土壤中,尿素逐渐地透过包衣达到控制释放养分,满足作物整个生育期对氮素的需求,同时又满足了作物对中量元素硫的需求。1示范材料、设计及方法1.1示范材料示范作物为玉米,品种为先玉335。山东鲁岳化工
Sulfur as the fourth largest plant growth element, can improve the soil, improve crop quality, reduce plant diseases and insect pests. Sulfur coated urea (referred to as SCU) is the most mature industrialized production technology slow release fertilizer varieties. Sulfur-coated urea is made by wrapping sulfur and microcrystalline wax sealants on the outside of urea. In the soil, urea gradually reaches the controlled release of nutrients through the coating to meet the demand for nitrogen throughout the growing period of the crop, while meeting the demand of the crop for the medium-sulfur element. 1 Demonstration Materials, Design and Methods 1.1 Demonstration Materials The demonstration crop is corn, with the variety of Xian-jiang 335. Shandong Lu Yue Chemical