Planting Technology Lists
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Special circumstances encountered after cotton sowing
Treatment of several special cases of cotton after sowing 1. After sowing, soil moisture should be checked in time. For cotton fields with poor soil moisture and the possibility of drying out, ditches can be opened at the edge of the seed ditch to irrigate small water; cotton fields without water irrigation conditions can suppress and increase soil moisture before the seedlings are unearthed. 2. In case of rain after sowing, the ground is easy to harden and shell when it rains after sowing. After the rain, hoe and loosen the soil should be made in time to break the knot to help the seedlings to be unearthed. If the soil cover is too thick, you should pick the soil to save the seedlings; the seedlings can not stand the strong light of the sun, so you should pay attention when picking the seedlings.
2019-01-16 -
Key techniques of cotton sowing
Around April 20 is the golden season for cotton sowing all the year round. However, due to the late harvest of mustard this year, the harvest of mustard is closely related to the cotton sowing season, so the labor and time of cleaning up the mustard are tight. To this end, it is suggested that the vast number of cotton farmers should do a good job in the following aspects. 1. If, after the mustard harvest, it is already the cotton sowing season, and if you have to tidy up the mustard field or wait for the cotton to sow for more than five days, you might as well take the time to raise seedlings in a nutrition bowl after the mustard is harvested, which can not only save the seeds, but also protect the seedlings easily.
2019-01-16 -
Extreme potassium deficiency in cotton fields will cause a large number of dead trees.
Cotton is sensitive to potassium deficiency, especially since the development of BT transgenic insect-resistant cotton, potassium-deficient cotton fields often show serious disease, premature senescence, few bolls, poor boll opening and poor fiber quality. Four or five years ago, the results of rapid measurement of available nutrients in cotton field soil in central and southern Hebei showed that the content of available potassium in most soil was less than 80PPM (mg / kg), which belonged to serious potassium deficiency, and some soils lacked 40PPM to the extent of extreme potassium deficiency. The data measured by the soil nutrient rapid measuring instrument are not accurate, and the content of available potassium in some soil samples is 0.
2019-01-16 -
Five measures for regrasping cotton at seedling stage
Cotton takes about one month from emergence to budding, which is a single vegetative growth stage, and it is an important growth period to promote root rooting, prevent seedling disease, promote early development, and then reach early budding. The field management of plastic film cotton mainly includes releasing seedlings in time, ploughing and loosening the soil, checking seedlings and replenishing seedlings, preventing diseases and pests, fixing seedlings, and so on. Cotton farmers everywhere have a lot of experience in cotton seedling management, which is worth popularizing, which is summarized as follows: early seedling release, late hole plugging. When 50% of the cotton seedlings are unearthed, the cotyledons can be released in batches when the cotyledons are flat and turn green. Release seedlings
2019-01-16 -
Control measures of Cotton Seedling Disease after Rain at Seedling stage
In the case of rainfall in cotton seedling stage, the disease is easy to break out and spread. Light pathogens infect the leaves, and the disease spots affect the photosynthesis of leaves, which leads to late occurrence of cotton seedlings, and serious ones lead to rotten buds and rotten roots, forming diseased or dead seedlings. Humic acid foliar fertilizer should be sprayed twice after cotton emergence to improve the low temperature resistance and disease resistance of cotton seedlings. Spraying 50% carbendazim or 70% methyl thiophanate wettable powder 800 times + 70% mancozeb 600 times, or spraying and irrigating roots with 3000 times of carbendazim at seedling stage.
2019-01-16 -
Matters needing attention in using Fungicides in Cotton Seedling stage
First, when choosing fungicides, it is necessary to find out the properties of fungicides. There are two types of fungicides, one is protective agent, this kind of fungicide is to prevent plant disease, such as Bordeaux solution, mancozeb, carbendazim, etc.; the other is therapeutic agent, which is applied after plant disease, in order to kill or inhibit the pathogens invading the plant, the therapeutic agent has a better effect in the early stage of the disease, such as Kangkuning, Baozhida and other compound fungicides. Second, fungicides should be sprayed before 9 am or after 4 pm. If sprayed in the hot sun, the chemical is easy to decompose and evaporate.
2019-01-16 -
Cotton vas deferens get twice the result with half the effort at seedling stage
& nbsp & nbsp on May 25, at the invitation of the Guangzong Service Station of the Cotton Committee of the China Agricultural Technology Association, I went to Gaojiazhuang, Fengjiazhai Township, Guangzong to see the cotton fields and discussed the current management technology with the farmers. Guangzong County, adjacent to Weixian County, is a dry zone with less rain and more sand in the central and southern part of Hebei Province, which is very suitable for growing cotton and is one of the key cotton producing counties. At present, the seedling situation is growing well, there are 4 true leaves, and the seedlings are basically disease-free; some near the tree edge are damaged by cotton bug bugs, and a few cotton seedlings have cotton aphids, and the villagers have carried out control. Due to the adoption of
2019-01-16 -
Cultivation and Management of Cotton Seedling stage
The cotton is sown at the right time this year, and the seedlings emerge neatly, in order to promote the early development and balanced growth of strong seedlings. At present, the main management measures are: 1, clear ditch drainage, waterlogging and waterlogging prevention. Cotton does not need much water at seedling stage, which generally accounts for only about 15% of the total water consumption. But there are many Rain Water in our city at this time, the soil moisture is high, the groundwater table is high, and there are often bright, waterlogged and dark stains, resulting in soil anoxia, soil temperature drop, weakening root activity, slow growth of cotton plants, easy occurrence of diseases and mildew roots and dead seedlings. Cotton farmers often say that "the cause of the water, the root gets sick, the fierce sun dies" is reasonable.
2019-01-16 -
Diagnosis and Control of Cotton Seedling Diseases
Diagnosis and control of cotton diseases at seedling stage there are many kinds of diseases in cotton seedling stage, but there are mainly two types of diseases: root disease and leaf disease. Root diseases often lead to rotting before emergence, rotten buds, root rot and stem base rot after emergence are the main causes of lack of seedlings and broken ridges in cotton fields, such as standing blight, anthracnose, red rot, quenching and so on. The leaf disease is harmful to the cotyledons, true leaves and stems of cotton seedlings, and when it is serious, the top of the stem and leaves wither and fall off, such as black spot, brown spot, cotton seedling blight, stem blight and so on. This film focuses on an overview of several
2019-01-16 -
Occurrence and Control of Cotton Seedling Diseases
The occurrence of cotton seedling disease is characterized by concentrated onset time, which usually occurs 15-30 days after sowing. The primary infection source is mainly from soil and a few from seeds. Around April 20 this year, there was continuous rain and low temperatures in many provinces, and the occurrence of seedling disease was bound to be serious, so all localities should prevent and control it in time. First, symptoms (1) blight. Damage to cotton seedlings before they are unearthed will cause rotten seeds and sprouts. The disease occurred after the cotton seedlings were unearthed, and the disease spot appeared at the base of the young stem near the ground and became black and sunken at the beginning, and the disease spot gradually expanded.
2019-01-16