Key points of field management of sorghum

Sorghum is one of the more common food crops, it is generally planted in the north, the south is relatively rare, China has a long history of planting sorghum, planting technology is also relatively perfect. In planting management, if you want to achieve high yield, field management is particularly important, so what should sorghum field management do? Let's take a look at the detailed introduction with the editor.

1. Cultivate the soil by ploughing.

Cultivating the soil in the middle ploughing is the work that we must do when we grow crops, at this time, because the soil is constantly absorbed because of nutrients and water, or because of the soil quality, the soil will gradually agglomerate, thus affecting the normal growth of crops and affecting yield. So at this time, it is necessary to plough, loosen the soil, so that crops can grow normally. Sorghum should be ploughed 2-3 times according to the actual growth during the whole growth period, usually the first time after planting maturity. Sorghum has deep roots and can be ploughed deeply when ploughing, but be careful not to damage the roots. When sorghum grows to a certain height, lodging occurs, and soil cultivation can prevent lodging.

2. Weeding

In the cultivation of sorghum, weeds will certainly appear in the field, the vitality of weeds is strong, will seize the soil nutrients, water and sorghum growth space. It leads to the decline of soil fertility and affects the growth and development of sorghum, while too many weeds are easy to breed diseases and insect pests. Sorghum is weak in seedlings, but weeds and seedlings are about the same size. If they are not eradicated in time, the survival rate of seedlings is low, so weeding should be carried out as soon as possible, and weeding should be done as soon as possible. Manual weeding is recommended when seedlings are weeded. If you use insecticides, it may harm the growth of seedlings.

3. Topdressing

Sorghum needs a lot of nutrients when growing, and the fertility of the soil itself can not supply its growth. In addition to applying sufficient base fertilizer before planting, it also needs reasonable topdressing according to the growth situation, variety and other conditions of sorghum. For example, sufficient fertilizer is applied when the seedlings are transplanted, but there is no need for topdressing at the green stage, but a large amount of fertilizer is needed at the jointing and heading stage of sorghum, which should be re-applied. Generally, it is necessary to topdressing twice during this period, once heavy application of jointing fertilizer, accounting for 2/3 of the total topdressing fertilizer; light application of panicle fertilizer, accounting for 1/3, at this time, attention should be paid to less nitrogen fertilizer and more phosphorus and potassium fertilizer.

4. Pest control

Diseases and insect pests are one of the main factors affecting the yield and quality of sorghum. When the diseases and insect pests are serious, there will be no harvest, seriously affecting the income of farmers. In the prevention and control of diseases and insect pests, the growth of sorghum should be observed on time. Once the diseased plants are found, they should be pulled out and taken out of the field to be destroyed in time, and the disinfection of the disease holes should be done well. If a large area of disease is found, it should be dealt with in time, judged to be suitable for diseases and insect pests, and sprayed with corresponding chemicals in time.

The above is the introduction of sorghum field management points, hope to help you, want to know more related knowledge, please follow us.