Hybrid insect-resistant cotton generally has strong growth potential, with more fruit branches and longer leaves, high planting and leafy foliage, and obvious individual advantages. In addition to timely planting, cultivating strong seedlings, applying sufficient basic fertilizer, lightly applying Miaofei, stably applying Leifei, pruning Alas, chemical control, prevention and control of pests and diseases, but also should focus on the following key links.
First, relax line spacing and reduce density.
Upper and middle fertility plots, generally 1-1.2 meters apart, plant spacing 50-55 centimeters, density 1200-1300 per acre; hilly land, medium-lower mass plots, spacing 1 meter, density 1400-1500 per acre It is advisable to avoid excessive density and affect the performance of high yield performance.
The advantages of large row spacing and low density are: conservation of seed use, planting of labor, delaying the closure of lines to reduce shade, ventilation and light transmission, and facilitating agricultural operations.
Second, increase potassium fertilizer.
Cotton is a potassium-negative potassium crop. Physiological potassium deficiency often causes the stem blight of cotton leaves. Its symptoms are yellowing of the edges of the leaves, and then deep yellow to brown, which seriously causes the lower bud bells to fall off, resembling verticillium wilt. Therefore, for the cotton that is deficient in potassium all year round, it is necessary to increase the application amount of potash fertilizer. For cotton fields with a per mu yield of more than 300 kg of seed cotton, the total amount of potash fertilizer applied during the entire growth period should not be less than 20-25 kg. General base fertilizer 5 kg, 15 kg bud fertilizer.
Third, reapply flower bell fertilizer.
In the Jianghuai hilly areas of our province, especially in low-yielding areas, fertilizers often use only the base fertilizer, seedling fertilizer, and bud fertilizer, while neglecting the use of flower and top-fertilizers. After mid-July, cotton enters a large number. Flowering is in the bell stage, and the flowering and bolling period lasts until the end of August until early September. During this period, sufficient fertilizer must be applied to meet the needs of a large number of cotton nectarine crops, and it is also the material basis for obtaining high cotton yield.
In mid-July, when the cotton plant had 1-2 hard peaches, it was 15-20 kilograms of urea and 5 kilograms of potassium oxide.
Fourth, drought and flood control.
From late July to August, cotton is in a period of large numbers of flowering and peaching. At this time, not only does it require large amounts of nutrients, but also a lot of water. At this time, if we encounter v. early or “big autumn drought,†when the cotton leaves from the morning At 11 o'clock, when it begins to wilt, by 3 o'clock in the afternoon, the cotton farmer will call it a "break". At this time, it is necessary to find ways to carry out irrigation in the morning or evening, otherwise it will cause a large number of bee bells to fall off. At the same time, in the case of rainy weather, it is necessary to do a good job in cleaning the ditch and prevent leakage and lodging of roots.
For the cultivation of hybrid insect-resistant cotton, as long as the above-mentioned key links are grasped, it is hoped that a high yield of 300-400 kg of seed cotton will be obtained. (Feixi County Plant Protection Station)
Medical Analyzer you can measure the vital signs of blood pressure SpO2, pulse rate, and temperature and conduct a complete body composition analysis to determine fat, water, and muscle content. You can now measure more parameters in a routine check and broaden your diagnostic and therapeutic options through the combined view of BIA and vital signs. This high-performance software communicates with any network and guarantees the error-free transmission of all measurement values to your EMR system. Our integration service will individually integrate the system into your IT infrastructure as needed and thereby optimize your daily routine measurements.
Medical Analyzer
Urit Medical,Medical Analyzer,Medical Test Paper,Laboratory Analyzer
Changchun Medicon Technology Development Co., Ltd , https://www.jlmdk.com