US 11,685,862 B1
Special soil conditioner for soda saline-alkaline paddy fields and preparation method thereof
Hongyuan Liu, Changchun (CN); Bolong Wen, Changchun (CN); and Guoshuang Chen, Changchun (CN)
Assigned to Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun (CN)
Filed by Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun (CN)
Filed on Feb. 9, 2023, as Appl. No. 18/107,630.
Claims priority of application No. 202210427665.5 (CN), filed on Apr. 22, 2022.
Int. Cl. C09K 17/40 (2006.01)
CPC C09K 17/40 (2013.01) 2 Claims
OG exemplary drawing
 
1. A special soil conditioner for soda saline-alkaline paddy fields, comprising raw material components in parts by weight:
560-740 parts of calcium chloride dihydrate, 45-90 parts of anionic polyacrylamide, 45-90 parts of mineral potassium fulvate, 1.8-2.7 parts of diethylaminoethyl (DA) polyamine, DA-7 or DA-8, 0.6-0.9 parts of brassinolide, 0.6-0.8 parts of potassium indolebutyrate, 0.3-0.4 parts of sodium α-naphthylacetate and 5-8 parts of powder anti-caking agent,
wherein the potassium indolebutyrate and the sodium α-naphthylacetate are compounded in a ratio of 2:1;
wherein a calcium chloride content in the calcium chloride dihydrate is ≥74 wt %;
wherein a molecular weight of the anionic polyacrylamide is 6-12 Mg/mol;
wherein a potassium oxide content is ≥12 wt %, a humic acid content is ≥60 wt % and a fulvic acid content is ≥50 wt % in the mineral potassium fulvate;
wherein a content of an active ingredient of the DA polyamine or the DA-7 or the DA-8 is ≥98 wt %;
wherein a content of an active ingredient of the brassinolide is 0.01 wt %, a content of an active ingredient of the potassium indolebutyrate is ≥98 wt %, and a content of an active ingredient of the sodium α-naphthylacetate is ≥98 wt %.