How does sorghum produce high yield? In the process of planting sorghum, because of some factors, sorghum can not produce high yield, such as sorghum seedling blight, anthracnose, purple spot, smut and other diseases, so today Xiaobian will specifically talk about sorghum high-yield planting Methods and disease prevention.
First, the cultivation and management of sorghum
1, sowing
a. Level the land before sowing and start sowing when the soil temperature reaches 18-21 degrees.
b. The distance between the sorghum sowing rows is 15-30cm, and in the arid areas, the row distance is 70-100cm.
2, fertilization
a. 6.5-8.0 kg of nitrogen fertilizer should be applied when planting per mu, and combined with a certain amount of phosphorus and potassium fertilizer as base fertilizer.
b. After each harvest, apply 3.5 kg of nitrogen fertilizer per mu to promote the regeneration of the feed sorghum.
3, harvesting
a. Harvest in time when the height of the sorghum reaches 1-1.2m, and harvest in the dry season at a height of 1.5m or more.
b, the height of the stubble is 15-20cm, which is beneficial to its regeneration.
Second, sorghum disease prevention
1, seed blight
a. Implement rotation for more than 3 years.
b. Reasonable close planting when planting sorghum.
c. When fertilizing, it is necessary to apply fully decomposed organic fertilizer.
d. In the rainy season, it is necessary to drain in time. When watering, it is strictly forbidden to flood the water.
2, anthrax
a. Remove the sick body in time after harvesting sorghum.
b. Adopt a rotation method of more than 3 years.
c. Seed treatment is required before planting.
d. For individual seriously ill fields, the application is controlled from the booting stage.
3, purple spot disease
a. Deeply turn the land in time after the fall.
b. Timely topdressing in the late stage of growth, hitting 1-2 old leaves in the lower part of the diseased plant
c, medication control in the early stage of the disease.
4, smut
a. Rotating with non-host plants when planting sorghum.
b. Apply fully decomposed organic fertilizer.
c. Before the occurrence of “Umi†but before it has broken down, remove the diseased plants in time and bring them out to the field for deep burial or destruction.
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