Saline-alkali soil improver as well as preparation and use methods thereof

• Main Authors: YU XUEJUN, JIN RUIWEN, DONG XUELIANG, ZHANG PEI, LI ZHONGXIAN, ZHANG YANCHANG, LIU XIAOPEI, WANG JUNWEI, TANG ZHONGJIE, SONG YUE, WANG TAN'GANG
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to the technical field of soil improvement, and provides a saline-alkali soil improver, which is prepared from the following components in percentage by mass: 30 to 35 percent of humic acid grafted acrylic acid polymer, 1 to 2 percent of guanidine sulfate or guanidine carbonate, 2 to 4 percent of N-[2-(2-methoxy-5-nitro-phenoxy) ethyl] pyridine chloride, 2 to 4 percent of [2-(3, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5- 2%-4% of 2, 4-dichlorophenoxy)-ethyl] hexadecyl diethylammonium bromide and the balance of water. The modifier prepared by the invention has the effects of reducing the saline-alkali content of soil of a plough layer, improving the saline-alkali tolerance of crops and retaining water and saving water, can enable saline-alkali components in the soil to leave root systems of the crops, reduces the stress effect of saline-alkali on the crops and improves the emergence rate of seeds and the yield of the c