Planting Technology Lists
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Technical Suggestions on Cotton Flowering and Boll Stage Management
Cotton flowering and boll stage is the key period for both vegetative growth and reproductive growth. During this period, the vegetative growth is gradually transformed into reproductive growth. The plant grows vigorously and the daily growth is large. It is the peak period for fertilizer and water demand in the whole life. It is also the key period for forming economic yield. It must be carefully controlled in time to adjust measures to local conditions and seedlings. It is necessary to do a good job in pest control, chemical control, pruning, intertillage and loosening soil. At the same time, it is reasonable and scientific to apply fertilizer and timely appropriate irrigation to make the plant grow steadily and steadily. Plant type and field population structure reasonable, ventilation,
2019-01-16 -
Measures for the Management of Cotton flowering and Boll stage
The main goal of cotton flowering and boll stage management is to protect peach, gain weight and prevent premature senility. 1. Re-application of flower and boll fertilizer: the flower and boll stage is the period when cotton needs the most fertilizer in the whole growth period. For the cotton field with high soil fertility, good rain and soil moisture and prosperous cotton plant growth, topdressing can be applied at the full flowering stage; for the cotton field with general soil fertility, poor soil moisture in drought and weak cotton plant growth, it should be applied early and re-applied, and fertilizer can be applied at the early flowering stage. Generally, 15 kilograms of nitrogen and potassium compound fertilizer per mu. And continue to do a good job in ploughing and loosening the soil, and master the principle that it should be shallow rather than deep. 2. watering in case of drought and drainage in case of flood
2019-01-16 -
The effect of spraying fertilizer on cotton is great in the later stage.
In the later stage of cotton growth, the nutrient absorption function of root system decreased obviously, when foliar fertilizer was sprayed to supplement nutrition, it could prevent premature senescence, disease, attack big peach, promote early maturity and strive for high quality, and the effect of increasing yield and income was remarkable. 1. Spraying nitrogen fertilizer to prevent premature senescence: in the later stage of cotton, spraying nitrogen nutrition on cotton leaves can keep cotton leaves green, enhance photosynthesis, prevent denitrification and premature senescence. Mixed spraying of nitrogen fertilizer and "regulator 802" can enhance cotton growth stamina more obviously and increase yield better. From late August to September
2019-01-16 -
Nine reminders of cotton management in the later stage
Now cotton has entered the boll opening stage, which is the last growth stage. Throughout September, the upper cotton bolls continued to grow and enrich. There are still more than 50 days left between now and the harvest in late October. If the management is relaxed, it is still possible to suffer heavy losses. (1) ideologically, we should not relax the management in the later stage, especially if we do not think that if there are not too many cotton peaches, we are no longer willing to invest in high yield. If you can keep more than 40,000 cotton peaches per mu and let it grow up and open well, you can harvest four or five hundred jin of seed cotton per mu. I downloaded 6 new cotton varieties under national examination in our province.
2019-01-16 -
Questions and answers on cotton management technology in the later stage
1. When will the post-management of cotton begin? Answer: the cotton field management after the end of the flowering and boll period is called cotton late management. The Yellow River basin in China generally begins in early September and the Yangtze River basin in late August. 2. What are the main tasks of cotton management in the later stage? Answer: boll opening period is the key period to determine cotton fiber quality, so first of all, we should protect bolls, increase boll weight and lint percentage; secondly, we should protect roots and leaves, promote precocious maturity and prevent premature senescence; third, we should solve the problems of high yield, rotten bolls and greed.
2019-01-16 -
Four main links of Cotton Management in the later stage
The main goal of cotton post-management is to promote cotton maturity, early boll opening, not premature senescence, not greedy green. To do a good job in pruning, one is to remove the old leaves and empty branches from the lower part of the main stem for the luxuriant and shady cotton fields. The second is to wipe out the superfluous buds in time and adhere to the principle that the superfluous buds are no more than an inch. Third, hit the group tip, generally knock off the group tip of the lower, middle and upper fruit branches. Fourth, when there are more shaded cotton fields or Rain Water, it is necessary to push plants and ridges for 2 or 3 times to promote the ripening of cotton peaches and reduce mildew and rot. Foliar fertilizer spraying
2019-01-16 -
Cotton anaphase management
In autumn, the growth of cotton turned to the late growth stage of opening bolls and completing the development of autumn peach. This period takes root and leaf protection as the center, with scientific management means to promote the healthy growth of cotton plants, prevent premature senility and greed for late ripening and rotten peaches, and strive for a bumper cotton harvest. The specific management methods are as follows. 1. After resisting drought and waterlogging the Beginning of Autumn, the drought is often serious. During the period from mid-August to mid-September, the soil water content of 040 cm should be kept at more than 55% of the field capacity. Only under sufficient moisture conditions, cotton.
2019-01-16 -
What medicine does cotton red leaf use?
Control the top and promote the bottom to enhance the stress resistance of cotton plants. First, apply plant growth retardant mepiquat amine or auxin to control the vigorous growth of cotton, spray 2~ 3g mepiquat amine or 8~ 12ml auxin on 50kg water per mu; Second, for cotton fields with hardened soil, timely tillage and ventilation to enhance permeability; Third, for cotton fields with low terrain, pay attention to tilling ditches at any time to promote cotton roots to tie down; Fourth, the implementation of plastic film mulching cultivation of cotton fields, to immediately remove the plastic film, so that cotton roots to develop in depth. Increasing potassium fertilizer application and improving fertilizer efficiency for soil
2019-01-16 -
Cotton Red Leaf Stem Blight and its Control measures
First, after the disease of the symptom recognition plant, the leaves become dark green and thicker and brittle, then there are red dots scattered on the leaves, and finally the whole leaves turn red, and the leaf veins remain green, that is, red leaf stem blight. When the disease is serious, the petiole base becomes soft, dehydration shrinks, causing the leaf to wither and fall off, and the top of the stem is dry-scorched. At the same time, it is easy to cause repeated infection of ring spot and brown spot, causing the diseased plant to scorch and die. Some plants can still sprout after falling off their diseased leaves. The plants with severe and early disease were short, the root system was underdeveloped, and the main root and lateral root were both.
2019-01-16 -
Comprehensive Prevention Measures of Cotton Red Leaf Stem Blight
Cotton red leaf stem blight is a physiological disease. In recent years, it occurs frequently in cotton area of Yangtze River valley in our country. It begins to occur at early flowering stage, and it is serious and common from full flowering stage to boll setting stage. It occurs sporadically in July and August in our country. The disease peaked from middle and late September to October. The lightly damaged plants had few yellow and thin bolls, short fibers and poor boll opening. The seriously affected plants died ahead of time and the bolls could not mature, which had a great impact on yield. I. Symptoms. At the beginning of the disease, red and purple spots appeared on the leaves, gradually expanding to red on the whole leaves.
2019-01-16