Slow releasing type water retaining agent for soil

Abstract

The slow releasing soil water retaining agent consists of attapulgite clay powder, volcanic dust, high hydroscopicity resin and wood dust. It can maintain irrigated water and release water based on requirement of crop and tree, and can also absorb water from soil. The slow releasing soil water retaining agent of the present invention may be used in planting crops and greening plant in drought areas.

Description

Technical field: [0001] The invention relates to a water-retaining agent, in particular to a slow-release soil water-retaining agent. Background technique: [0002] Planting crops and greening and planting trees in arid and water-scarce areas, the most important thing is to ensure the water needed for the growth of crops and trees, even if some water is poured in the initial stage of planting crops and greening and tree planting, the soil at the roots of crops and trees cannot retain moisture , crops and trees are also difficult to guarantee survival and normal growth. [0003] Chinese patent authorization number CN1114673, the date of authorization announcement is April 10, 2002, and the name is "Nutritional Desert, Soil Additive", which discloses "a nutritional desert for planting trees and grass in deserts and planting crops in arid areas. , Soil additives. Planting trees and grasses and crops in deserts and arid soils requires not only organic and inorganic nutrients, b...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned invention is that simply adopting "the clay mineral bentonite and / or zeolite with water-absorbing property as desert and soil additive" can slowly release and absorb less water, and it is difficult to ensure that the desert planting trees and grasses and Survival rate and normal growth of crops planted in dry areas