Barley planting: how to prevent barley lodging?

How to prevent barley lodging? Is there any way to prevent and introduce the method of barley in the case of high planting density, large amount of nitrogen fertilizer, and high temperature during the overwintering period, there will be serious lodging, resulting in a decline in yield and quality, and increase the difficulty of harvest. The main results are as follows: 1. Barley lodging causes: 1. Barley root system is underdeveloped and shallow, stem node is long, stem wall is thin, stem is soft, flag leaf and inverted second leaf are hypertrophic and bent, which is easy to cause heavy and light lodging in case of rain. 2. The planting density is too large, the field population is too large, the ventilation and light transmission is poor, the stem is slender, the stem is soft and non-tough, and it is easy to lodge. 3. Excessive amount of fertilizer, especially nitrogen fertilizer, results in vigorous growth and lodging in the field. 4. During the overwintering period, the temperature is too high, the growth process of malting barley is accelerated, and the wheat seedlings grow rapidly, which leads to the field population being too large, entering the jointing stage early and easy to lodge in the later stage. Second, the method of preventing barley lodging: timely paddling and suppression, promoting root and stalk to prevent lodging. Deep ploughing and root-cutting, generally deep ploughing 9-10 cm at intervals from green to starting stage of malting barley, compacting the soil and watering after deep ploughing, in order to inhibit the excessive growth of wheat seedlings and the occurrence of invalid tillering. Reasonable close planting to promote individual growth, production should be in time to deal with over-growing fields and timely thinning seedlings. Scientific fertilization and combined application of nitrogen, phosphorus and potassium. In the fertilizer operation, control the amount of nitrogen fertilizer, increase the application of phosphorus and potassium fertilizer, prevent lodging and improve the quality of malting barley. In general, the proportion of nitrogen, phosphorus and potassium fertilizer is 1: 1.5-2: 0.5, which should be adjusted reasonably according to the local soil fertility level in actual production. For strong seedlings, strong seedlings and wheat fields with the trend of vigorous growth, the application of nitrogen fertilizer was postponed to the jointing stage without topdressing at the returning green stage and rising stage, so as to promote the growth of effective tillers, increase the panicle rate and promote large panicles and large grains. For the fields with high plant height, high planting density, strong plant growth and thin stems, 50 grams of water and 25 kilograms of water per mu were sprayed at the initial heading stage of barley (when 5% of the plants were heading). Click to get more barley planting techniques click to get more food crop planting techniques