Ecological water-retention and fertilizer-conservation soil configuration modifier on aeolian sandy soil, and use method thereof

Abstract

The invention belongs to a sandy soil improvement technology, concretely relates to an ecological water-retention and fertilizer-conservation soil configuration modifier on aeolian sandy soil, and a use method thereof. A sandy soil, montmorillonite powder and anionic polyacrylamide mixture is added to the bottom of the plough layer of the sandy soil to keep the water content of the bottom layer of the soil being 70-80% of the field water capacity; and an organic fertilizer and a small amount of a chemical fertilizer are added to the plough layer in order to reduce the seepage of soil rainfall and irrigation water, prevent the nutrient loss of the soil and improve the water-retention and fertilizer-conservation ability of the soil. The ecological water-retention and fertilizer-conservation soil configuration modifier on aeolian sandy soil, and the use method thereof have the advantages of improvement of the profile construction of soil in the sandy soil, increase of the water holding capacity and the fertilizer conservation ability of the soil, improvement of the physical properties of the soil, increase of the water retention and the fertilizer conservation of the soil, facilitation of the growth of crops, and increase of the yield of the crops.

Description

technical field [0001] The invention belongs to sandy soil improvement technology, and specifically refers to an ecological water- and fertilizer-conserving soil configuration improving agent on sandy soil and a use method thereof. [0002] technical background [0003] There is a large area of ​​sandy land in my country, the soil type is mainly aeolian sandy soil, and the productivity is very low. The root cause is closely related to the soil characteristics of the sandy soil, in addition to the dry and rainless climatic conditions. Aeolian sandy soil has a single soil structure and is often sandy throughout, with strong permeability and water and fertilizer leakage, resulting in low natural fertility, low soil organic matter content, low soil nutrient content, and poor water and fertilizer retention. In some places with good water resources, wind-blown sandy soil can be quickly reclaimed into arable land, which is the largest reserve arable land resource in my country. In...

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Problems solved by technology

However, plastic films often lead to serious environmental pollution