Saline-alkali soil modifying agent and modifying method

• Main Authors: RUIQING QIE, JING MA, QIANG GAO, YU WANG, YANAN HOU, CHUNLIN LI, JUNTAO CUI, KING HAN, LANPO ZHAO
• Format: Patent
• Language: English
• Published: 05.10.2005
• Edition: 7
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

This invention is salt-alkali soil improver and the improving method, and relates to using the material adjusting the soil to improve the salt-alkali soil and the improver mainly uses aluminum sulfate. The improving method is to spray aluminum sulfate evenly, and the spraying amount of paddy field is: spray 0.3-1.0 ton for each hectare of newly reclaimed heavy salt-alkali field, and 0.2-0.3 ton for two-year reclaimed field, the spraying time of paddy field is after spring dunking field and before infield for once time; and the glebe adopts disproportioned spray and 0.4-0.6 per each hectare and more at alkali spots, and the time of spray is during the field neatening before the insemination, and it only needs one time. This invention has fast effect, low cost, and is innocuous without environmental pollution, and the effect time is long.