Nutrient planting sand and sand planting structure

Abstract

The invention belongs to the field of sand planting and particularly relates to nutrient planting sand capable of being used in water retention and fat retention of planting and a sand planting structure comprising the planting sand. The planting sand comprises a porous sand ball and a nutrient film coating the surface of the porous sand ball; the porous sand ball comprises natural sand grains and a hydrophilic adhesion agent; the natural sand grains are bonded through the hydrophilic adhesion agent to form the sand ball with the porous structure; and pores suitable for adsorption are formed between the adjacent natural sand grains. According to the planting sand, present natural sand grains are bonded to create pores and porosity of the sand ball can retain nutrient fertilizer effectively so that nutrient substances suitable for plant growth like fertilizer can be loaded in pores and a surface through film formation so as to form the planting sand capable of providing fertilizer, essential fertilizer nutrients are provided for plant growth, meanwhile, loss of fertilizer with water loss can be effectively avoided, and the utilization ratio of the fertilizer is increased beneficially.

Description

technical field [0001] The invention belongs to the field of sand planting, and in particular relates to a water-retaining and fertilizer-retaining nutrient planting sand which can be directly used for planting and a sand planting structure containing the planting sand. Background technique [0002] Desertification is a natural phenomenon, which is caused by climate change caused by the movement of the earth's dry belt, which leads to desertification in local areas. Moreover, with the increasingly harsh global climate and the rapid population growth, the land has been over-exploited, cultivated and raised, resulting in faster and faster global desertification, less arable land, and continued decline in agricultural and animal husbandry production capacity. Especially for a country like my country with a small land and a large population, the negative impact of the growing desertification process leading to the reduction of agricultural and plantable soil is fatal. [0003] ...

AI Technical Summary

Problems solved by technology

[0006] However, the treatment of sand in this invention adopts a general simple mixing process, directly mixing organic waste or by-product powder and soil microorganisms and inoculating them on the sand, and using the coagulation of microorganisms in the presence of microorganisms can realize sand separation. The adhesion force between them can reduce the loss of sand and soil caused by wind and sand flow. The sand aggregates described in this invention are more used in desert planting to prevent loss. For daily planting, water and fertilizer conservation are required. performance, the adhesion between microorganisms is not applicable, and the sand has not undergone any pretreatment, whether its smooth outer surface is suitable for microbial inoculation adsorption and how much adsorption capacity is also open to question, so the sand cohesion The body is not suitable for the planting with sand as the main planting body in daily planting. Therefore, there are still great limitations for the large-scale promotion of sand planting technology

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