First, re-apply attack stem fertilizer.
The elongation of sugarcane is the time for large roots, large leaves, and long stems to be the most nutrient-intensive. The amount of fertilizer absorbed accounts for more than 50% of the total amount of fertilizers. Therefore, it is necessary to re-attack the stem fertilizer, and the main application of nitrogen fertilizer to promote cane stem growth and thickening, prevent premature aging, increase production and sugar. Application of urea per acre 10 to 13 kilograms, manure excrement 2500 to 3000 kilograms. 25 kg of cake fat. Such as basal fertilizer and pre-phosphorus, potassium fertilizer should be sufficient, can be combined with additional phosphorus, potash fertilizer. If the sugarcane plant grows vigorously and the leaf color is dark green, it can be applied less; Poor growth, premature yellowing or premature senescence, should be applied early.
Second, Gao Pei soil is put down.
During the elongation of sugarcane, high earth should be used in combination with fertilization. Soil cultivation can not only preserve fertilizer and improve fertilizer efficiency, but also promote the development of sugarcane root system and prevent lodging. The specific approach is: through a number of thin soil, to achieve high soil, each soil cover only the first section of the cane, so that the roots of the cane head rooting, conducive to the growth of sugar cane. In high soils, we must also pay attention to border management, such as adding fertilizers and soils to the borders to prevent humans and animals from trampling in order to overcome the phenomenon of eliminating borders.
Third, the old leaves to prevent pests.
Sugarcane field permeability is one of the important conditions for sugarcane growth. Sugarcane enters the late growth stage and grows a new leaf every 7-10 days. Therefore, to peel off the leaves and old yellow leaves, enhance the air and light in the sugarcane field, promote photosynthesis, make the stalk thick, enhance lodging resistance, increase sugar, but also help control pests and reduce harm. Raise the yield of sugar cane, sugarcane leaves can feed cattle or fuel.
Fourth, irrigation drought and strong stems.
From August to September, sugarcane entered the jointing fierce long-term. Under conditions of good water and fertilizer conditions, it can grow 3 to 3.5 centimeters per day, and can grow 80 to 90 centimeters per month. Therefore, we must pay attention to irrigation. In particular, when drought occurs, water should be promptly irrigated, and soil moisture content should be maintained at 60% to 80%. Hilly slopes should be sealed and ridged heads should be set up to fight for rain and water. In addition, the old leaf or mulch can be used to cover the cane pods, and the cash crops can also be interplanted to increase the mulch cover and reduce the evaporation of soil moisture. Conditional irrigation should be used to avoid drought and reduce production. Where there is water, we must fill the water without losing our time to ensure a good harvest of sugarcane.
Fifth, prevention and pest prevention.
August-September is both a long season of sugarcane jointing and a period of various pest damage. For example, in July, the cockroaches and locusts, and beetles and filarial insects from August to September, especially the roots of filarial food cane, will cause sugarcane to wither and fall down. Control measures: According to the pest situation, timely application of pesticides.
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