Cotton grafting splice grafting method

A cotton grafting splice grafting method comprises the following steps: 1, splicing a stock into a smooth slope, vertically cutting the stock to the bottom of the slope along a stem middle axle, the cutting is in a V-shape, and the stock reserves one or more function blades; 2, cutting scion into a slope with about same size of the stock, vertically cutting the scion to the bottom of the slope along an axle, the cutting is in an inverted V-shape, and one or more blades are kept; 3, closely jointing two inner sections with two outer sections of the scion and the stock in a staggering manner until the bottoms of the sections are reached, i.e., the two Vs are buckled, if the stock and the scion are different in stem diameter, the stem side in the joint should be smooth, and phloem should be fully fit; 4, using a grafting clamp to fasten the joint between the stock and the scion; 5, keeping humidity >=80% and temperature 25-35 DEG C after grafting, shading the top; 6, removing the shading after the grafted cotton passes a recovery period and the scion blade becomes flat, gradually airing for dehumidification, and completing the grafting.