When selecting species for planting, we must pay attention to the following "Eight Don'ts" and "Five Musts":
First, do not choose cotton plants with serious pests and diseases. Blight and verticillium wilt are the chronic diseases that restrict cotton production. Cottonseeds are also carriers of pathogens, and germs can spread rapidly with cottonseed. Therefore, the cotton plants with poor resistance to wilt, verticillium wilt, and cotton plants with poor resistance to insects must be eliminated (while cotton plants that perform well in severe disease can be preserved).
Second, do not choose the top peach and late autumn peach. Fuchs peaches and late autumn peaches have poor growth, poor ripeness, light bolls, low seed germination, and weak growth.
Third, do not use "peeling peach" cottonseed. Some cotton farmers still have the habit of “splitting the mouth peach and picking wet flowers†​​for the more fully developed Puccio, because they are not fully mature and do not complete the post-harvest effect, and they absolutely cannot leave seeds.
Fourth, do not spray ethephon cottonseed. Ethephon spray can promote the early maturity of cotton 5 to 7 days, but the damage to cottonseed, resulting in incomplete development, can not be planted.
Fifth, do not use seriously degraded varieties. Cotton is a cross-pollination crop, and the outcross rate is 3% to 20%. After several years of continuous breeding, the insect-resistant cotton varieties are often mixed by biology due to insect pollination if they are not purified and rejuvenated. For low-purity plots, avoid seeding.
6. Do not choose hybrid cotton varieties. In the current state of the art, hybrid cotton varieties are not perfect, and the separation of F2 generation is very serious and should be avoided.
Seven, do not dry on the cement floor. Sun-dried cottonseeds with high water content on the concrete floor will cause some cottonseed to form “mute seeds†and lose the ability to germinate.
8. Do not store together with pesticides and fertilizers. Some farmers have stored cottonseed with pesticides and fertilizers for a long period of time. Due to poor ventilation and toxic gases emitted from pesticides and chemical fertilizers, they damage the normal physiology of cottonseeds, resulting in a sharp drop in germination rate.
To sum up, it is suggested that the majority of cotton farmers should pay attention to the “five prioritiesâ€: they must choose land plots with high purity, select cotton plants free of pests and diseases, and set aside the farmland to select the species in the central government. "Peach", to use cooked "dried flowers."
The appearance is tan, and the cork is red-brown at the flaking; there are intermittent stripes on the branches, nodules are enlarged, and the shape is like a bead. Most of the hard and delicate roots and fibrous roots are born, and some surfaces are smooth and smooth, such as stalks. It is commonly known as "crossing the river branches" or "crossing bridges"; there are brown scales on the upper part, and there are residual stems or petioles that have not been cleaned at the top. The quality is firm and hard, the section is irregular, the skin is dark brown, the wood is golden, the rays are cracked, the central pith is red and yellow, and occasionally hollow. Odorless, very bitter taste, chewing saliva can be dyed red and yellow. It is better to use fat, beaded, solid, red-yellow, no residual stems and fibrous roots.
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