How to prevent wheat from lodging

    Wheat lodging has two roots and stems, and stems are usually more common. Root lodging is caused by poor root development, not deep roots, and few secondary roots are weak and can not support the weight of the aerial part. Stem lodging is mainly caused by the undeveloped mechanical organization of the base of the stem and the excessive length between the first and second nodes of the stem. The main reason is that the population is too large or too much nitrogen fertilizer is applied.

  Practice has proved that in order to prevent wheat from lodging, in addition to targeted selection of lodging resistance varieties, improvement of soil preparation quality and quality of planting, it is also necessary to grasp the field management of wheat returning to jointing stage.

  First, the wheat field with a long trend should be suppressed early to prevent prosperous. After the spring, further deep cultivating is needed to cut off some of the old roots, promote the growth of new roots, and enhance the lodging resistance of wheat.

  Second, control the use of greening and splitting fertilizer, and rationally manage the fertilizer. In addition to insufficient base fertilizer, poor soil plots or late-sown wheat fields with insufficient fertilization, and weak seedling plots, the use of nitrogen fertilizer should be reduced to control the growth of wheat and promote the stalk of wheat.

  Third, the rational use of plant growth regulators. There are:

  (1) Before jointing wheat per acre with 15% paclobutrazol can warm powders 50 g, was diluted with water after 50 kg uniformly sprayed;

( 2 ) Before the jointing of wheat, 25 to 50 ml of 50 % chlormequat solution per acre , sprayed with 30 to 40 kg of water ;

  (3) up in front of wheat per acre with mepiquat 15 to 20 ml or 3 DPC powders. 5 to 5 grams, sprayed with 40 kg of water .

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