DEFOLIATION IS AN IMPORTANT MEASURE

Аннотация

The timing and depth of sowing should be determined by the soil conditions of each region and even each field. The most important is the timely cultivation of the rows. KEYWORDS: Norm, term, soil, cultivator, a number of plants. INTRODUCTION decomposes and the rest grows poorly and sparingly [1-4]. The Republic of Uzbekistan is the most northern region of cotton-producing THE MAIN PART countries in the world. The climate here is When determining the sowing time, it is continental, with rainy days lasting until important to take into account that the March and even the first ten days of April. cotton is a warm plant, with a temperature of Therefore, the best time for sowing is during 20-250 for normal growth and development the second decade of April and the fifth day [5-9]. Based on the results of many years of of May. Seeds should be sown correctly and research and development experience of the in a timely manner with sufficient moisture to research institutions, the sowing of seeds produce a high-quality cotton crop. When should be completed within the following exposed to inadequate soil, most of the soil timeframe: “DEFOLIATION IS AN IMPORTANT MEASURE” P age 44 | 5 1. April 5-15 in Tashkent and Ferghana When cotton is sprouted, the soil will not be regions. able to absorb the nitrogen and phosphorus it 2. April 1-15 in Syrdarya, Jizzakh, contains. That is why nitrogen, phosphorus Namangan, Andijan and Bukhara and potassium fertilizers, given at the same regions. time as sowing, have significant benefits for 3. In mountainous areas of Andijan the rapid development of cotton. These region and in Samarkand region April fertilizers have a positive effect on the plant's 5-20. faster absorption of mobile nitrogen, 4. March 25 in the southern districts of phosphorus and potassium in the soil. Based Surkhandarya region Until April 10, on the above scientific results, in our April 1-15 in the Northern District. experience, we have 30–40 kg of urea per 5. In the southern regions of Kashkadarya hectare and 40-50 kg of amorphous tractor from 25 March to 15 April, in the cultivator per sow, with 6–8 rows per sowing northern areas from 1 to 15 April. row 10 cm deep and 10-12 cm deep [21-27]. 6. It is recommended to plant in the In addition, the timely cultivation of cotton Khorezm region and southern districts fields is one of the most important factors for of the Karakalpak Autonomous achieving high yields. By increasing the inter- Republic from April 10 to 25, and in the row cultivation of cotton, the activity of northern districts of the autonomous microorganisms in the soil will be improved, republic until April 15-30. and the plant's micro-and macro-organisms will increase. As a result, the vitality of plant Seedless seeds are sown after 5-6 days in roots is improved through oxygen enrichment comparison with hairy seeds. Depending on by air exchange in the soil. Rapid processing the weather, these terms can be delayed for of young cotton plantations facilitates the 2-3 days or backwards is possible. The timing development of young seedlings by providing and depth of sowing should be determined porous soil and hot air. When working the according to the soil conditions of each farm rows, the sow is planted to a width of 60 cm, and even each field [10-17]. In our experience taking into account the age of the sprout. in grassy-soil soils of the Fergana region, the seeds of cotton seeds S8290 and S6775, If planted, appropriate soil mitigation and according to the soil condition, were planted grazing facilities will be established. to a depth of 3-4 cm with a daily average soil