51results about How to "Good water and fat retention" patented technology

The invention discloses a crushing and ridging culture method of rice. The method comprises the following steps that: a spiral bit machine is adopted to vertically mill the soil in a rotary manner to naturally form beds and ridges, the rotary milling depth in the soil is 20-30cm, the spiral bit machine is ensured to rotate till the raw soil layer and crush the soil into fine powder and ridge the soil, the crushed soil naturally floats upwards about 5-10cm, the soil is deeply loosened and the soil layer is not disturbed, the bed width ranges from 60cm to 300cm depending on the number of the crushing and ridging mechanical bit devices, irrigation and drainage ditches are formed between the beds, the no-tillage depth of the ditch bottoms is 20-30cm and the ditch width is 15-25cm; then directly seeding or seedling throwing or seedling transplanting after water return is carried out on the crushed and ridged fields; and the field moisture alternates between wetting and drying. The method has the following advantages: the traditional mode of directly seeding dry rice after harrowing the whole field with ploughs and transplanting (throwing) seedlings of rice after harrowing the field with ploughs is changed; the soil is fine and loose, has deeper active layer, stores and retains water, has sufficient oxygen, is beneficial to quick rooting and more roots, improves the drought, insect pest and lodging resistance, uses water to regulate atmosphere, fertilizers and growth, can meet the requirements of high yield, growth and development of rice for water, atmosphere and nutrients and improves the yield and quality of rice.