77results about How to "Prevent soil erosion" patented technology

The present invention relates to compositions comprising a plant material and methods for using the same. The methods include extracting or removing a substance from a substrate, or remediating a substrate from a substance. The substance can comprise a hydrocarbon-containing substance, a protein, lipid, wax, fatty acid or fatty alcohol, or a combination thereof.

Provided herein are compositions and methods for producing transgenic plants. In specific embodiments, transgenic plants comprise a construct comprising a polynucleotide encoding microRNA167 (miR167), or precursor thereof, operably linked to a plant pericycle-specific promote, wherein the miR167 is ectopically overexpressed in the transgenic plants, and wherein the promoter is optionally a constitutive or inducible promoter. In some embodiments, the transgenic plant has an improved agronomic or nutritional characteristic when cultivated in nitrogen-rich conditions as compared to a wild type plant cultivated in the same conditions. Also provided herein are commercial products (e.g., pulp, paper, paper products, or lumber) derived from the transgenic plants (e.g., transgenic trees) produced using the methods provided herein.

The invention discloses a draining and salt-removing method for a newly-ploughed salinized farmland, comprising the following steps of: making a simple farmland concealed pipe by utilizing a building PVC (Poly Vinyl Chloride) sewer pipe, uniformly drilling holes with the diameter of 3mm on the wall of a 100mm plastic sewer pipe by the punching rate of 75 percent, coating two to three layers of crude chemical fiber outside the wall of the pipe, and strapping with plastic ropes; digging several rows of concealed pipe ditches in the newly-ploughed salinized farmland, wherein the depth of the concealed pipe ditches is 1.5-2.0m, the bottom width is 30cm and the specification of the side slope is 1:0.5; paving plastic weaved cloth with the width of 40cm at the bottoms of the ditches, paving sand gravel with the thickness of 15cm on the plastic weaved cloth, paving a coated concealed pipe, paving and spreading sand gravel with the thickness of 15-20cm at the surrounding and the upper part of the concealed pipe, paving the plastic weaved cloth with the width of 40cm on the sand gravel and refilling. The invention mainly solves the technical problem of draining by the concealed pipe in the newly-ploughed salinized farmland in aired regions and has a wide application value on the aspects of prevention and control of salinization and secondary salinizaiton of farmland in the dried regions, reformation and utilization of the farmland in the dried regions as well as prevention and control of desertification.

A tillage system has a first set of deep tilling tines and a second set of shallow tilling coulter tines present in a number more than twice that of the deep tilling tines. The deep tilling tines till the field to a depth of about 5 to 12 inches at row planting locations, loosening the soil for easy plant growth. This deep grooving action builds mounds of soil at both sides of the deep groove which are cleared by a second set of shallow tilling curved coulter tines followed by a third set of plurality of rows of shallow tilling toothed coulters that till the space between grooves to a depth of about 1 to 4 inches, providing a water reservoir space and clearing plant debris. A last row of shallow tilling ruffled coulters are provided to mix and incorporate into soil plant debris and plant stocks, anchoring tilled soil.

The invention discloses an ecological revetment based on in-situ solidification of dredged sludge and a preparation method thereof. The preparation method comprises the following steps that 1) sediment is used as the bottom foundation of the ecological revetment by using a preparation device; and 2) sludge required to be dredged is inhaled into a vehicle-mounted stirring device, solidified sludgeslurry is formed by stirring and adding of a solidifying agent, and the solidified sludge slurry is injected into a wood-pile-imitating revetment template to prepare the ecological revetment. The massratio of the sludge solidifying agent, to sludge, to microporous membrane porous ash, to a foaming agent to a rheological agent in the solidified sludge slurry is (5%-15%): (70%-90%): (5%-15%): (0.1%-2%): (0.1%-2%). The ecological revetment based on in-situ solidification of dredged sludge and the preparation method are ecological, safe, practical, free of secondary pollution and low in comprehensive cost.

The invention provides a composite non-woven fabric wrap-knitted grid and a production method thereof. A backing fabric of a hot-rolled and spunbonded non-woven fabric and a common wrap-knitted grid are knitted together through a warp knitting machine, advantages of the backing fabric of the hot-rolled and spunbonded non-woven fabric and the common wrap-knitted grid are integrated, in a civil engineering project, effects of reinforcing and dispersing stress can be achieved, the strength of knots of the warp-knitted grid is enhanced with the aid of features of isotropy and high strength of the non-woven fabric, meanwhile, the filtering performance is good, water and soil loss of a civil engineering base material is avoided effectively, and improvement of integral quality and prolongation of the service life of the civil engineering project are greatly guaranteed and promoted.

The invention belongs to the technical field of fruit tree cultivation management and particularly provides a method for improving citrus orchard ecological environment by interplanting Tephrosia candida and Dolichos lablab L.. The method comprises the steps of green manure seeding, cultivation management, and cutting and utilization. According to the invention, by interplanting the perennial erect green manure crop Tephrosia candida and the entwined green manure cropDolichos lablab L. between rows of a citrus orchard, the Dolichos lablab L. is guided to climb on the Tephrosia candida, the Dolichos lablab L. is prevented from climbing on and winding around fruit trees, the amount of green manure and grass is increased, at the same time, by regular cutting, the grass covers the surface of soil, the surface temperature is further reduced, the organic matter content of the soil of the citrus orchard is improved, water and soil are preserved, weeds are inhibited, therefore, the fertilizerapplication is reduced, the ecological environment of the citrus orchard is improved, the fruit quality is improved, and the market competitiveness is improved.

Method for stabilizing sand and earth by precipitation of struvite, comprising applying an aqueous solution of salts comprising: a) Mg²⁺ ions of a concentration 10-200 mM, b) NH₄⁺ ions either added in the form of ammonium salt or from decomposition of added urea, of concentration 10-200 mM, c) anions added as part of corresponding cations, d) polyphosphate (Na₅P₃O₁₀/Na₃P₃O₉) of concentration 10-100 mM, e) a catalyst chosen among acidic and alkaline phosphatase.

The invention discloses a box body for interplanting mushrooms and plants. The box body comprises a box main body, mushroom planting shelves, a vegetable planting groove, an adjusting mechanism and awaterproof and breathable membrane mechanism, and a support is arranged above the portion inside the box main body. The adjusting mechanism comprises an electric control box, drying filters, a one-wayvalve, a water pump, an ultrasonic generator, an ozone sterilization generator, an antiosmosis filtering stick, a fog collecting box, a compressor, a lamp light adjusting system, a temperature adjusting system and a humidity adjusting system, the mushroom planting shelves are uniformly arranged under the support from top to bottom, the vegetable planting groove is formed below the mushroom planting shelves, and the waterproof and breathable membrane mechanism which relatively isolates a plant planting area and other areas of the box main body is arranged on the outer surface of the vegetableplanting groove. By means of the box body for interplanting the mushrooms and the plants, the problems that a large quantity of resources are wasted and the cost is high in the production process aresolved, and thus the purposes of increasing yield and income are finally achieved.