Method of irrigation and fertilization
Abstract
Abstract Fertilization and irrigation of highly permeable surface soils in semi-arid regions is described wherein the soils are contacted with an aqueous solution of a water soluble plant nutrient salt and an effective amount of a partially hydrolyzed polyacrylamide to reduce the permeability of the soil without rendering it impermeable to water flow. It has been found that water soluble plant nutrients and the aforementioned partially hydrolyzed polyacrylamide exhibit a synergistic effect to decrease the water permeability of the soils. It has also been found that plants grow better in the treated soil and are more efficient in uptake of nutrients from the soil. These discoveries can be used to conserve water and fertilizer and improve the efficiency of agronomy by contacting the soil with a solution having a concentration of from 0.001 to about 1 weight percent of a polyacrylamide having from 5 to about 80 percent of its amide groups hydrolyzed to carboxylic acid groups and from 0.001 to 5 weight percent of a water soluble, plant nutrient salt.
Inventors
- 👤 S Hashimoto
- 👤 Y Linda
- 👤 B Sandiford
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
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