摘要
利用天津日用化学助剂厂排放的固体废渣--磷石膏,在水稻、玉米、大豆、青椒、白菜、花卉、果树等作物上进行应用试验,研究其对作物生长发育的影响及其改良土壤的效果,分析磷石膏中有害物质对土壤和作物的影响.结果表明:施用磷石膏3 750～5 250 kg/hm2,对提高作物的移栽成活率,促进有效分蘖,增加籽实产量,降低土壤pH值和改良盐碱地有明显作用.磷石膏中氟及放射性物质经淋洗、挥发等转化过程达到安全值,不会造成土壤和作物二次污染,在农业上的开发应用前景广阔.
The experiments on rice, corn, soybean, pepper, Chinese cabbage, flower, fruit tree and so on were carried out by making use of industrial solid waste residue： phosphorus plaster from Chemical Promoter Factory for daily use of Tianjin, in order to study the effect of the phosphorus plaster on plant growing and soil improving, and the effect of harmful waste in phosphorus plaster on soil and plants. The results indicate that the phosphorus plaster has a remarkable effect on increasing the survival rate and effective tillering after plant transplanting, increasing the yield, reducing the pH value of soil, and improving the salty soil by applying 3 750～5 250 kg/hm^2. The fluoride and radioactive materials in phosphorus plaster should not cause the secondary pollution if changing these materials into the ,safe level by drip washing and volatilization, so the research of application in Agriculture has a broad prospect.
出处
《天津农学院学报》
CAS
2005年第3期49-52,共4页
Journal of Tianjin Agricultural University
关键词
磷石膏
生长发育
盐碱地改良
开发应用
phosphorus plaster
growth and development
the salty soil improving
development and application
