Planting Technology Lists
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Skillful Prevention of Cotton Diseases
In recent years, the harm of diseases has become one of the important factors restricting the yield and quality of cotton. For some diseases, the symptoms are not obvious at the beginning and are easy to be ignored, but it is too late to take measures when they are serious. Especially in the continuous cropping land, cotton farmers have a headache for some common diseases and soil-borne diseases, and they often feel helpless. For this reason, cotton diseases should be "dominated by prevention and supplemented by treatment". There are many diseases of cotton, but there are two main diseases that make cotton farmers feel a headache: one is the problem of dead seedlings caused by Verticillium wilt after emergence, and the other is Verticillium wilt. this
2019-01-16 -
Prevention and Control of Cotton Diseases should start at Seedling stage
The main diseases in cotton seedling stage are blight, anthracnose, black spot, quenching, root rot and so on. The main cause of cotton seedling disease is seed and soil bacteria. Once the suitable climatic and environmental conditions are encountered, cotton seedling disease will occur seriously, endangering the normal growth of cotton seedlings. In general, the incidence of seedling disease is 30% to 50%. In recent years, with the popularization of transgenic insect-resistant cotton, the seedling disease of cotton is gradually aggravated, which directly threatens the early development of whole and strong seedlings of cotton. Therefore, the comprehensive control of cotton seedling diseases has been achieved.
2019-01-16 -
The etiology of cotton diseases
Inferior seeds, low temperature, high humidity and extensive sowing are the factors of cotton disease. 1. Under climatic conditions, all kinds of pathogens of cotton diseases propagate rapidly under high humidity conditions, while low temperature is not conducive to the growth and development of cotton roots. In some early sowing cotton fields, under the condition of cold and rainy spring, young roots grow slowly, and pathogens are infected frequently, which is easy to cause rotten seeds and buds. two。 Seed quality seed maturity is low, or damp mildew, easy to rot seeds, rotten buds; not only not conducive to seedling emergence, but also mostly weak seedlings after emergence.
2019-01-16 -
What if the cotton was blown to death by Rain Water?
After timely elimination of waterlogging and clearing of silt ditch cotton fields, the physical and chemical properties of the soil will change. Excessive humidity and lack of air will cause suffocation in the cotton fields. Even if they do not die, they are also susceptible to disease and are not conducive to root binding. Waterlogging must be eliminated as soon as possible. At the same time, the silted ditches, waist ditches and chamber ditches must be cleaned to reduce the groundwater level and create a good ecological environment for cotton seedlings to restore growth. Help the seedlings to wash the seedlings in time, and wash the seedlings while returning water. Clean the silt from the cotton leaves and stems so that the cotton leaves can recover as soon as possible.
2019-01-16 -
Key points of emergency management of cotton after being flooded
The summer rainfall is heavy, the rainfall is concentrated, and the rainfall time is long. At this time, cotton is in the most critical period of transformation from vegetative growth to reproductive growth, and it is also the most critical period for cotton bud and boll increase. In order to reduce the loss of cotton production and strive for a bumper cotton harvest, the following emergency management measures must be taken immediately after cotton is flooded. First, dig three trenches deeply. Quickly remove open water, reduce stagnant water in cotton fields, and dig three ditches deeply, not only to achieve open water drainage, but also to reduce groundwater level and soil water content to remove dark stains in cotton fields and dredge box ditches in time; waist grooves are 60% wide according to area.
2019-01-16 -
Application method of Cotton Seedling Preservation Agent
First, the use of cotton seedling protection agent cotton seedling protection agent by large, medium and small three bags, the specific seed soaking steps are: 1, 5 kg of cotton seeds with three-pack (about 70 ℃) a cool water soaking for 5 minutes, the cotton seeds out, squeeze out the excess water. 2. Dissolve the small bag of reagent in 0.5 kg of water, into the cotton soaked in cool water, pour and stir until fully stirred for 24 hours (2 or 3 times in the middle). 3. Dissolve the medium bag reagent in 1.54 kg of water and pour it into a small bag of reagent
2019-01-16 -
Post-disaster management method of cotton hail
Timely drainage and waterlogging prevention hail is often accompanied by strong wind and rainstorm, which often causes stagnant water in the field, and the soil moisture is too large, which is easy to cause cotton root damage and affect the normal growth of cotton. After the hail disaster, the cotton field soil is hardened, the ground temperature is low and the humidity is high. All kinds of disaster cotton fields should be ploughed in time to loosen the soil, break the consolidation, increase the ground temperature, promote the physiological activity of the root system, and make the cotton plants resume normal growth as soon as possible. For the severely damaged cotton fields with more than 80% cotton plants and bare stalks after the hail disaster, it is suggested that cotton plants should be pulled out and planted with other crops to minimize the number of crops.
2019-01-16 -
Improved cotton variety Ruiza 816
Characteristics: the first generation of mid-mature hybrid varieties transformed with insect-resistant genes, the growth period of spring sowing in the Yellow River basin is 120 days, good emergence, strong growth in the early and middle stages, general growth in the later stage, and good uniformity. The plant shape is loose, the plant height is 100 cm, the stem is purplish red, the fruit branch is long, the hairs are few, the leaf is large and green, the node of the first fruit branch is 7.1 nodes; there are 15.8 bolls per plant, the bolls are oval, the bolls are smooth, the single boll weight is 6.6 grams, the lint percentage is 39.8%, the seed finger is 11.8 grams, and the flowering rate before frost is 94.1%. Resistant to Fusarium wilt, Verticillium wilt and cotton bollworm; HVI
2019-01-16 -
Cotton improved Variety subsidy recommended Variety: Xinqiu 2
The characteristics of national cotton 2007008: the growth period of spring sowing in the Yellow River valley was 120 days, the seedling growth was weak in seedling stage, strong in middle stage, weak in late stage and general in leaf function. The plant type is compact, the plant height is 100 cm, the leaf is medium size and dark green, the first fruit branch is 7.5 nodes, there are 17.6 bolls per plant, the bolls are oval, the bolls are smooth, the single boll weight is 6.0 grams, the lint percentage is 41.6%, the seed finger is 10.1 grams, and the flowering rate before frost is 96.5%.
2019-01-16 -
Improved Cotton Variety subsidized and recommended: Demian 998
The characteristics of national cotton 2010005: mid-early maturing hybrid varieties transferred with insect resistance gene, the growth period of late spring sowing in the Yellow River basin was 120 days. The seedlings are prosperous, the cotyledons are hypertrophic, the seedlings are strong, the whole growth period is strong, the uniformity is good, the bolls are concentrated, and the bolls are smooth. The plant height is 106.2 cm, the plant type is loose, the stem is stout and fluffy, the leaves are medium size, dark green, the bolls are round and large, the first fruit branch is 6.9nodes, the bolls per plant are 17.3g, and the weight of single boll is 6.4g. Lint percentage 41.6%, sub-finger 11.5 g, pre-frost flowering rate
2019-01-16