Planting Technology Lists
-
Cotton management after topping in July
After the cotton is topped, it is generally controlled for 1 or 2 times. For the first time, in 3-5 days after topping, fields with 667 square meters of seedlings of about 12000 plants were given 4-5 grams of promethamine and 30 kilograms of water. The following technical measures should be taken after cotton topping in July. First, scientific control 1. After cotton topping is regulated according to the growth trend, it is generally controlled for 1 to 2 times. For the first time, three to five days after topping, the fields with 667 square meters of seedlings protected at about 12000 plants, 4 grams of promethamine and 30 thousand water.
2019-01-16 -
Cotton leaf spray fertilizer remember five points
Cotton leaf is the most important vegetative organ of cotton, which has four functions: photosynthesis, respiration, transpiration and absorption. Making use of its absorption and photosynthesis, foliar fertilizer spraying can promote plant growth, enhance disease resistance, insect resistance, drought resistance and premature senility resistance, regulate vegetative growth and reproductive growth, and greatly improve yield and quality. 1. The type of spraying can be selected scientifically according to the growth of cotton, and the vigorous growth of cotton seedlings can be sprayed with 0.3%-0.4% potassium dihydrogen phosphate solution or 2% borax solution.
2019-01-16 -
Spraying zhuangsu on cotton has many benefits.
Zhuang Su is a special growth regulator for cotton, which can control the overgrowth of cotton, regulate the distribution of nutrients and improve the boll setting of cotton. In September, the growth and development of cotton is in the late boll-setting stage, so proper spraying of zhuangsu, 20ml per mu, can reduce the occurrence of invalid buds. After spraying cotton, the leaf color increases, the mesophyll thickens, which can effectively improve the photosynthesis of cotton. After spraying zhuangsu, the fruit branches of the upper part of cotton can grow old and healthy, and the effects of insect pests such as cotton bollworm and Spodoptera litura are reduced. At the same time, it has been affected by the climate in recent years.
2019-01-16 -
The income of raising cotton seedlings by hydroponic culture with foam plate substrate is higher.
Ezamian 10 F1, which is widely used in the market at present, was selected to compare the cultivation effects of plastic floppy disk substrate, foam disk substrate hydroponic culture and fertilizer soil nutrient bowl. The results showed that when cotton was planted in alluvial fluvo-aquic soil in Wuhan, the net income per unit area of continuous cropping with rape was the highest in hydroponic culture of foam plate, followed by that of plastic floppy disk. Therefore, the cotton varieties and the selection of light and simplified cultivation techniques according to local conditions can improve the cotton planting efficiency.
2019-01-16 -
The planting method of cotton which is difficult to open boll should be reformed.
In recent years, with the continuous deepening of the breeding of new cotton varieties, the improvement of sowing and seedling methods, as well as the improvement of agricultural mechanization, the planting mode of cotton field is very important for the high yield of cotton. In the era of conventional cotton, cotton sowing is mainly direct seeding, cotton planting density is larger, cotton row spacing is smaller, cotton fertilization is more. When hybrid cotton is popularized and used in a large area, due to the large ontogeny of hybrid cotton, the density of cotton field decreases continuously, the row spacing of cotton expands, and the cotton field density decreases continuously.
2019-01-16 -
Technology of dripping Water and Fertilizer under plastic Film of Cotton
Cotton drip irrigation under plastic film is a new water-saving technology, which can artificially control the amount of irrigation and field microclimate, greatly alleviate the tension of head water, and control the reproductive and vegetative growth of cotton, which is conducive to shaping the ideal plant type and reducing the ineffective consumption of nutrients. Although there are still some problems in practical application, cotton in drip irrigation has the advantages of early boll opening, good quality and high yield. At the same time, drip irrigation shows unique cold resistance under special climatic conditions. in the special climate of low temperature in spring and autumn, the growth and development is normal, high yield,
2019-01-16 -
Drip irrigation under plastic film for cotton cultivation
1. Preparation before sowing 1. Variety selection: According to climate and soil conditions, select varieties with growth period of about 130 days, resistance to wilt and verticillium wilt; compact plant type, short fruit branches I ~ II, small growth angle; moderate small leaves, short petioles, difficult to produce fried dough sticks; strong boll setting and good fiber quality. Such as 9665, JD~3, Fengmian 8, Jiumian 2, etc. 2. Deep application of basal fertilizer: the amount of chemical fertilizer is 8~12 kg of pure nitrogen, 7~10 kg of phosphorus pentoxide and 3.5 kg of potassium oxide. When ploughing and stubble cleaning, farm manure
2019-01-16 -
Agronomic matching techniques of drip Irrigation under plastic Film for Cotton
Drip irrigation technology under plastic film is a combination of drip irrigation technology and plastic film mulching cultivation technology. water is supplied through a controllable pipeline system, and after the fusion of water and fertilizer, drip by drop can be transported uniformly, regularly and quantitatively, infiltrating the root development area of crops. always keep the root soil loose and the best water-bearing state. The evaporation among crops is reduced and the utilization rate of water is improved. First, the irrigation system buried drip irrigation, a total of 175.48 million cubic meters of water. Drip water 9 times. Precision drip irrigation consumes a total of 177.84 million cubic meters. Drip
2019-01-16 -
How to control cotton seedling aphid
The suitable temperature for the occurrence of cotton seedling aphid is 18 ℃ ~ 25 ℃, but the temperature rises rapidly after rain, which is very suitable for the occurrence of seedling aphid. 1. Agricultural control cotton to root out weeds, strengthen the management of water and fertilizer, promote the early emergence of cotton seedlings, pull out aphids with interseedling and fixed seedlings, and take them out of the field and burn them. 2. 10% imidacloprid wettable powder was used before 3 true leaves of seedlings, when the plant rate of rolled leaves reached 5%-10%, and after 4 true leaves reached 10%-20%.
2019-01-16 -
Key points of cotton seedbed management
During the period of cotton sowing this year, the weather is good and the light is sufficient. At present, a large area of cotton has been fully planted and has entered the stage of seedbed management. Specifically to grasp the following points: 1, every 10 square meters of seedling bed with "Zaofa No. 1" 3 ml plus 0.6 kg of water spray, 8-10 days later spray again, in order to prevent tall seedlings, cultivate strong seedlings. 2. After finishing the seedlings, choose sunny weather and dry the bed to disperse dampness and spray medicine to prevent disease at the same time. 3. for a small number of dry and stiff cotton seedlings that are short of water and less fertilizer, replenish fertilizer and water in time, ventilate and then uncover the film to replenish water before 9 o'clock in the morning, and use urine.
2019-01-16