When will sorghum be sown?

Suitable climatic conditions are conducive to the survival of seeds. Planting sorghum needs to choose soil with loose soil, deep soil layer, fertile soil, good air permeability and good drainage. Before planting, the soil should be deeply ploughed to increase the permeability and porosity of the soil. After planting, it is necessary to irrigate an appropriate amount of water to keep enough water in the soil to promote the rapid growth and development of seeds. Sorghum should avoid continuous cropping, and reasonable rotation mode is the key to increase sorghum production. Generally, everyone will choose to sow in spring.

The ideal previous crop of sorghum is soybean crop, followed by corn crop and potato crop. The suitable stubble is soybean stubble, or rotation with corn and millet. When determining sorghum seedlings, we should leave seedlings at equal intervals, strong seedlings and normal seedlings, but not two seedlings and two seedlings. It is also necessary to pull out miscellaneous plants, improve purity, and give full play to the role of improved varieties in increasing production.

Morphological characteristics of sorghum

Panicum miliaceum. The culm is stout and erect, with a height of 3-5 meters and a transverse diameter of 2-5 cm, and the basal nodes have supporting roots. Leaf sheaths glabrous or a little powdery; Ligule is hard, the apex is round, and the edge is ciliated; Leaf blade is linear to linear-lanceolate, 40-70 cm long and 3-8 cm wide, the apex is gradually pointed, the base is round or slightly ear-shaped, the surface is dark green, the back is light green or white, both sides are hairless, the edge is cartilaginous, with fine bristles, and the midvein is wide and white.

The spike is loose, the main shaft is exposed, the length is 15-45cm, the width is 4- 10cm, and the main shaft is upright or slightly curved; The main shaft has longitudinal edges, sparsely villous, 3-7 branches, whorled, rough or villous, and the base is dense; Each raceme has 3-6 nodes, which are rough or slightly flat; Sessile spikelets obovate or obovate-elliptic, 4.5-6 mm long and 3.5-4.5 mm wide, with pure basal plate and bearded hair; Both glumes are leathery, usually hairy on the top and edges, starting with yellow-green, and becoming red to dark brown when mature.