Root cutting and high-yield method for nutrition control of winter jujube tree

The invention relates to a root cutting and high-yield method for nutrition control of a winter jujube tree, which comprises the following steps of: (1) controlling the humidity and time; (2) cutting and girdling; (3) controlling the humidity and fertilizer application; and (4) bud picking. The method has the advantages that the excessive growth of the tree is controlled, the operation is simple, and the method is convenient to popularize and apply in the rural areas; the yield is increased by about 30%, the acre yield is increased by about 500 kg according to 110 plants per mu, and the net benefit of yield per mu is increased by over 2000 yuan; and the economic benefit is improved, the industrial scale is broad, the initiative of farmers is improved, and powerful guarantee is provided for eliminating barren for afforestation.