32results about How to "Improve water and fertilizer retention capacity" patented technology

The invention discloses a method for restoring uncovered soil vegetation in a strongly acidic tailings wasteland, which is characterized in that it comprises the following processes and steps: A. pre-preparation and drainage; B. improving the pH value of the land; C. cultivating the tailings wasteland Soil fertility; D. Screening and cultivating plant varieties; F. Management of seedlings after transplantation; the advantage is that the method of vegetation restoration without covering the soil reduces the disturbance to the tailings land, can achieve drainage, and can reduce acidity The effect of water on vegetation, the purpose of stabilizing heavy metals and improving the living environment of plants. Moreover, the cost is low, the effect is quick, the effect is good, and the operability is strong.

The invention discloses an anti-season potato mechanization planting matched cultivation technique, comprising the steps of 1) selecting land, comprising the steps of carrying out soil preparation and selecting subacid loamy soil or sandy loam soil land masses with pH of 5.3-7, higher terrain, loose and fertile soil property, deep soil layer and drainage and irrigation functions; 2) preparing potato seed blocks with the weight of 45-70g for seeding, wherein each potato seed block contains 2-3 bud eyes, and a slicer is required to be disinfected when cutting the potato seed blocks; 3) seeding, wherein depth from the upper part of a tuber to the upper part of a ridge platform is 8-10cm, row spacing is 90cm, and planting distance is 18cm; 4) intertilling and earthing for 5cm when seedling emergence rate reaches up to 60%; 5) carrying out fertilizer management; 6) carrying out water management when a potato root system reaches up to 60cm, wherein soil depth is determined to be 45cm to know water supply capacity of the soil depth; 7) maintaining available water in the field to be 70-80% in a tuber forming and expanding stage; 8) preventing and controlling diseases and pests; and 9) harvesting. The anti-season potato mechanization planting matched cultivation technique disclosed by the invention has the characteristic of improving yield and quality and is applicable to widespread use.

The invention discloses a method for improving heavy metal-polluted soil, which comprises the steps of: (1) modifying the heavy metal-polluted soil; (2) adding soil conditioner into soil; and (3) covering the soil, evenly mixing, and balancing for 0-6 months. The method restrains the oxidation of matrix by reactions such as absorption, chelation and complexation, and the like, fixes the heavy metal ion, reduces the biological toxicity of the soil, and reduces the diffusion and the leakage of the heavy metal ion to periphery soil or water. The method has low investment cost, can not break the structure of the soil, and is easily preformed.