Water retention agent rainwater absorption wet application method

Abstract

The invention relates to a water retention agent rainwater absorption wet application method, and relates to an application method of the water retention agent. The method comprises the following steps: (1) pits are dug before a rain; if pits are dug on a flat ground, planting soil obtained by digging is placed on one side of the pits; if pits are dug on a slope, planting soil obtained by digging is placed on the lower sides of the pits, such that surrounding rainwater can flow into the pits as more as possible during the rain; (3) a water retention agent is scattered in the pits, and is thinly spread, such that rainwater contact area can be enlarged, and water absorption efficiency can be improved; (3) during the rain, the water retention agent fully absorbs rainwater; when the water retention agent expands in volume, planting can be carried out; during planting, the planting soil obtained by digging is added. According to the rainwater absorption wet application method, the water retention agent is scattered on the soil at the bottom of the dug pits in advance, such that the water retention agent can slowly absorb rainwater during the rain. Therefore, the water retention agent can fully absorb water even with a smaller rainfall. The method can be applied on various plants planted in rain seasons and with a water retention agent.

Description

technical field [0001] The invention relates to a method for using a water-retaining agent, in particular to a wet application method for the water-retaining agent to absorb water in rain. Background technique [0002] Water-retaining agent is a polymer made of strong water-absorbing resin, which has special water-retaining and water-saving properties (Johnson MS.The effects of gel-forming polyacrylamides on moisture storage in sandy soils[J].Journal of the Science of Food and Agriculture, 1984,35(11):1196–1200), which can inhibit soil water evaporation (Yang Yonghui, Wu Jicheng, Wu Pute, etc. The mechanism of action of straw mulch and water retaining agent on soil structure, evaporation and infiltration process[J] .China Soil and Water Conservation Science, 2009,7(5):70-75), preventing soil erosion (D.Lentz R, E.Sojka R.Field results using polyacrylamide to manage furrow erosion and infiltration[J].Soil Science,1994, 158(4):158--274; Sepaskhah A R, Bazrafshan-Jahromi A R.C...

AI Technical Summary

Problems solved by technology

Dry application has the following disadvantages: First, if it is used for tree planting, the general watering time is very short, only a few minutes, and the water-absorbing time of the water-retaining agent for dry application is also very short, resulting in the water-retaining agent cannot fully absorb water, and the water-retaining efficiency cannot be fully exerted; secondly, Affected by the compacted soil after dry application, the expansion space of the water-retaining agent is limited after absorbing water, which also affects the water-absorbing effect of the water-retaining agent; thirdly, the volume of the water-retaining agent expands after absorbing water, which often leads to loosening of the soil and affects the stability of new planting saplings

The disadvantage of the traditional wet application method is: wet application must provide a water source and a container for soaking the water-retaining agent. Usually, a larger container is used near the water source to soak the water-retaining agent until it is saturated with water, and then transported to the construction site for use. After the agent absorbs water and expands, the volume and weight increase hundreds of times, which greatly increases the workload of handling.

It is also possible to directly lead water to the construction site and use containers to soak, but it also needs to wait for a certain soaking time. When a large amount of application is used, the work progress will be affected, and a large number of soaking containers must be purchased and transported.

[0007] Therefore, from the perspective of application effect, the effect of wet application of water-retaining agent is better than that of dry application. However, wet application in field application is often limited by water sources, water-retaining agent soaking containers, etc., and usually only dry application can be used.

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