A system for decontaminating/neutralizing breathable air and surfaces in an occupied enclosed space, i.e., agricultural greenhouse, includes mounting an atmospheric hydroxyl radical generator along an inside surface of the atmospheric hydroxyl radical generator having respective opposite air inlets and air outlets. The hydroxyl radical generator includes a polygonal housing supporting a plurality of spaced crystal-spliced UV optics, which are tubular, medical grade pure quartz optics to emit/irradiate ultraviolet in the nanometer wavelength/ultraviolet spectrum of between 100 and 400 nanometers for deactivating and neutralizing atmospheric chemicals and pathogens in breathable air and surfaces. The hydroxyl radicals contact the walls of the reaction chamber housing. The hydroxyl radicals become created and excited to react quickly with impurities including VOC, virus, bacteria and fungi, rendering them inactivated and neutral. The breathable air passes through the polygonal housing and is decontaminated and neutralized of impurities before entering the occupied enclosed space.

Cellulose filament medium for growing plant seedlings, comprising mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 4% and 50% in the mixture. Composition of matter suitable for forming a cellulose filament medium for growing plant seedlings, comprising: mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 28% and 35% in the mixture. Method of forming a medium for growing plant seedlings, comprising: adding a sufficient amount of water to a mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 28% and 35% in the mixture, to lower the consistency to between about 14% to 27%. Method of growing plant seedlings comprising: implanting plant seeds in a mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 4% and 50% in the mixture.

Cellulose filament medium for growing plant seedlings, comprising mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 4% and 50% in the mixture. Composition of matter suitable for forming a cellulose filament medium for growing plant seedlings, comprising: mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 28% and 35% in the mixture. Method of forming a medium for growing plant seedlings, comprising: adding a sufficient amount of water to a mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 28% and 35% in the mixture, to lower the consistency to between about 14% to 27%. Method of growing plant seedlings comprising: implanting plant seeds in a mixture of water and cellulose filaments, the cellulose filaments being at a consistency of between about 4% and 50% in the mixture.

A preparation method for artificially simulated soil rich in humus, relating to a preparation method for simulated soil. The purpose of the method is to solve the problem that the endurance capacity for an existing organic fertilizer to rainwash is low, thereby influencing the effect of remediation on defective soil by the organic fertilizer. The method comprises: 1, preparing a soil mixture; and 2, placing the soil mixture in a high-temperature high-pressure hydrothermal reaction kettle for a hydrothermal reaction to obtain artificially simulated soil rich in humus. The preparation method is simple, raw materials are cheap and easily obtained, and therefore the method is suitable for large-scale synthesis and preparation. The prepared artificially simulated soil rich in humus is used for increasing the soil water retention capacity and the capacity of absorption of nutrients.

A preparation method for artificially simulated soil rich in humus, relating to a preparation method for simulated soil. The purpose of the method is to solve the problem that the endurance capacity for an existing organic fertilizer to rainwash is low, thereby influencing the effect of remediation on defective soil by the organic fertilizer. The method comprises: 1, preparing a soil mixture; and 2, placing the soil mixture in a high-temperature high-pressure hydrothermal reaction kettle for a hydrothermal reaction to obtain artificially simulated soil rich in humus. The preparation method is simple, raw materials are cheap and easily obtained, and therefore the method is suitable for large-scale synthesis and preparation. The prepared artificially simulated soil rich in humus is used for increasing the soil water retention capacity and the capacity of absorption of nutrients.

Nutrient sources for a plant growth medium are disclosed. The nutrient sources include feather meal, soy meal, and optionally compost. Plant growth mediums including such nutrient sources exhibit desirable nutrient release profiles and advantageous plant growth. Methods of making and using the nutrient sources and plant growing mediums containing such nutrient sources are further disclosed.

Nutrient sources for a plant growth medium are disclosed. The nutrient sources include feather meal, soy meal, and optionally compost. Plant growth mediums including such nutrient sources exhibit desirable nutrient release profiles and advantageous plant growth. Methods of making and using the nutrient sources and plant growing mediums containing such nutrient sources are further disclosed.

The disclosure provides a structure for treating saline alkali soil and a biological treatment method, relating to the technical field of bioremediation for special soil and solving problems of single existing saline alkali soil improvement method, long improvement period, high cost and poor effect due to a single material. In the disclosure, a collecting layer, impermeable layers, and a plough layer are paved upward from a saline alkali soil layer in sequence. The impermeable layers and the collecting layer are made with a biological material, and the plough layer is improved, which reduces the content of harmful salt in the plough layer and improves the water holding capacity and permeability of soil in the plough layer. A collecting pipe network is buried under the plough layer, and collection pools are arranged at points of the pipe network for salt collection, permanently removing harmful salt components in the saline alkali soil.

The disclosure provides a structure for treating saline alkali soil and a biological treatment method, relating to the technical field of bioremediation for special soil and solving problems of single existing saline alkali soil improvement method, long improvement period, high cost and poor effect due to a single material. In the disclosure, a collecting layer, impermeable layers, and a plough layer are paved upward from a saline alkali soil layer in sequence. The impermeable layers and the collecting layer are made with a biological material, and the plough layer is improved, which reduces the content of harmful salt in the plough layer and improves the water holding capacity and permeability of soil in the plough layer. A collecting pipe network is buried under the plough layer, and collection pools are arranged at points of the pipe network for salt collection, permanently removing harmful salt components in the saline alkali soil.

A cellulose sponge was developed with sustainability, food safety, high porosity with large pores, high water retention, durability, low density, and malleability. The cellulose sponge is formed by one or more cellulose derivatives cross-linked with citric acid. The sponge may be highly porous such that the sponge is configured to be suitable for supporting plant growth. A method for forming this cellulose sponge may comprise providing one or more cellulose derivatives and citric acid, dissolving the citric acid in water to create a citric acid solution, adding the one or more cellulose derivatives into the citric acid solution while stirring such that no clumps are formed to create a cellulose-citric acid solution, removing the water from the cellulose-citric acid solution, and cross-linking the cellulose-citric acid solution to create the sponge.