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Nitrogen and Cotton Nutrition
1. Nitrogen in cotton: the average content of nitrogen in plants accounts for about 1.5% of the dry weight (range 0.3-5.0%). Cotton seeds contain 2.8-3.5% nitrogen, fiber 0.28-0.33%, and stems 1.2-1.8%, which are crops with high nitrogen content. According to the experiment, lint yield per mu is 62.7 to 94.7 kg, nitrogen accumulation from emergence to budding stage accounts for about 4.5%, from budding to flowering stage accounts for 27.8% and 30.4%, and from flowering to boll opening stage accounts for 59.8%.
2019-01-15 -
Factors affecting nitrogen use efficiency
Factors affecting nitrogen use efficiency
2019-10-21 -
What is nitrogen fertilizer? What are the common nitrogen fertilizers? Identification methods of nitrogen Fertilizer
What is nitrogen fertilizer? Nitrogen fertilizer is a kind of fertilizer, which is the main fertilizer to promote the growth of roots, stems and leaves of flowers. Nitrogen in it plays a very important role in crop growth. The application of nitrogen fertilizer can not only increase the yield of agricultural products, but also improve the quality of agricultural products.
2020-11-09 What yes nitrogen fertilizer common what identification methods -
What is lime nitrogen? How to use it in agriculture?
What is lime nitrogen? How to use it in agriculture? There are no netizens who know to help introduce lime nitrogen, also known as calcium cyanide. Generally, the nitrogen content of lime nitrogen is about 20%-22%. Lime nitrogen is a good fertilizer with great use value in the production of pollution-free agricultural products at present. at the same time, it is also a kind of soil purification for both medicine and fertilizer.
2018-07-11 -
What can be done to improve nitrogen use efficiency?
What is the effect of applying nitrogen fertilizer on fruit? Please guide us to introduce that the flavor of the fruit is a comprehensive expression of the properties and components of the countless cells that make up it. Although the sweetness of a fruit is determined by the amount of sugar in its cells, the accumulation of sugar is closely related to the application of nitrogen fertilizer. Originally, from Xiehua to Xiehua 3.
2018-07-18 -
How to choose nitrogen fertilizer?
Nitrogen fertilizer is one of the most important fertilizers for crops and plays an indispensable role in the growth of crops. Then how to choose nitrogen fertilizer? Next, I would like to introduce you to the selection of nitrogen fertilizer. There are many kinds of nitrogen fertilizer, which can be divided into ammonium nitrogen fertilizer and nitrate according to the form of the compound.
2020-11-09 Nitrogen fertilizer how to choose nitrogen fertilizer is crop the most important fertilizer -
Popular science: general knowledge of ammonia nitrogen degradation in aquaculture water
Aquaculture friends may know that it is important to control the concentration of ammonia nitrogen in aquaculture water. Therefore, how to effectively control ammonia nitrogen and degrade ammonia nitrogen has become each.
2019-02-26 -
Why should fruit trees apply nitrogen fertilizer? What are the fertilization methods and matters needing attention?
In the cultivation of fruit trees, rational fertilization is a very important link, in which nitrogen fertilizer is essential. So why do fruit trees apply nitrogen fertilizer? What are the fertilization methods and matters needing attention? First, why should fruit trees apply nitrogen fertilizer? A large number of categories needed in fruit trees
2020-11-09 Fruit trees why should application nitrogen fertilizer fertilization methods and in -
Why does the partial application of nitrogen fertilizer reduce the yield of crops? How much nitrogen do crops need?
Nitrogen is one of the essential nutrient elements for crops. proper supply of nitrogen fertilizer can increase crop yield and improve crop quality. However, if the partial application of nitrogen fertilizer, the crop yield will be reduced, what is the reason for this? How much nitrogen do crops need? Partial application of nitrogen fertilizer will cause photosynthesis of crops.
2020-11-09 Why crops partial application nitrogen fertilizer will reduce yield after all need nitrogen -
How to effectively improve nitrogen use efficiency?
What happens if you grow too much nitrogen fertilizer and too little nitrogen fertilizer for vegetables? Please introduce the symptoms of nitrogen imbalance in vegetables: excessive nitrogen leads to nutrient imbalance in plants, induces deficiency of potassium, calcium and boron, and accumulates ammonia in plants, resulting in ammonia poisoning, affecting vegetable yield and quality. it also affects nutritional quality and hygiene.
2018-07-14 -
What is the function of nitrogen fertilizer? What kinds do you have? Notes for use are attached!
People engaged in agricultural planting and production all know that nitrogen is a nutrient element of special significance in plant life, and nitrogen fertilizer is the largest variety of fertilizer produced and used in the world. So, what is the function of nitrogen fertilizer? What kinds do you have? Notes for use are attached
2020-11-08 Nitrogen fertilizer what is it what is it? -
What is the function of nitrogen fertilizer? How to choose?
Nitrogen fertilizer refers to the unit fertilizer with nitrogen (N) as the main component, with the marked amount of N, which can be applied to the soil to provide plant nitrogen nutrition. In the process of agricultural production, plant growth is inseparable from nitrogen fertilizer. Let's take a look at the role of nitrogen fertilizer. How to choose
2020-11-08 Nitrogen fertilizer what is it how to select nitrogen fertilizer it means to -
How to prevent and treat nitrogen Nutrition Disorder in Wheat
Symptoms of nitrogen deficiency in wheat: slow plant growth, short individuals, reduced tillers; faded leaves, yellowing of old leaves, premature senescence and withering; stems and leaves often reddish or purplish red; slender roots, reduced total roots; incomplete spike differentiation and small spike shape. Symptoms of nitrogen excess in wheat
2020-11-08 Wheat nitrogen nutrition disorders diseases how control wheat nitrogen deficiency -
Teach you tomatoes, cucumbers, spinach and other 24 kinds of cash crop fertilization program (method), after learning to fear not high yield!
Nowadays, more and more agricultural materials enterprises pay attention to agrochemical services, but the skills of agrochemical service personnel are mixed. Growers will be skeptical. Xiaobian simply summarizes the management and fertilization schemes for 24 crops such as tomatoes, cucumbers and spinach that are common in life at present. After all,
2020-11-09 teach you tomatoes cucumbers spinach etc. 24 species cash crops -
Application methods and matters needing attention of long-acting nitrogen fertilizer
The traditional nitrogen fertilizer application of strong gluten wheat is generally divided into two times. The first is to apply a part of nitrogen fertilizer to the cultivated land before sowing, accounting for 60%-70% of the total nitrogen application; the second time is the spring wheat returning to green period to the starting stage combined with watering and topdressing, accounting for 30%-40% of the total fertilizer application. Some before the wheat overwintered.
2018-07-15 -
Types and Application methods of nitrogen Fertilizer
The main nitrogen fertilizers commonly used in fruit tree production are urea, ammonium bicarbonate, ammonium nitrate, ammonium sulfate, ammonium chloride and long-acting urea. Urea is acyl nitrogen fertilizer with a nitrogen content of 46%. It can be used as base fertilizer, topdressing and extra-root topdressing. Ammonium bicarbonate is an ammonium nitrogen fertilizer with a nitrogen content of 16.5%-16.8%, which can be used as base fertilizer.
2018-07-15 -
The secret of nitrogen fertilizer has been uncovered for the first time in the world! Cai Yifang, an academician of the Chinese Academy of Sciences, identified the key genes for nitrate uptake by plants.
The secret of nitrogen fertilizer has been uncovered for the first time in the world! Cai Yifang, an academician of the Chinese Academy of Sciences, identified the key genes for nitrate uptake by plants.
2019-09-23 -
Nitrogen fertilizer is used skillfully, economically and efficiently.
First, the effect of nitrogen conservation is good. Changing nitrogen fertilizer from surface application to deep application can greatly reduce the volatilization loss and denitrification of nitrogen fertilizer. Reduce the consumption of fertilizer by weeds and algae, so that the nitrogen fertilizer has a good effect on nitrogen conservation. The nitrogen fertilizer was deeply applied to 7ml / 5cm. According to the determination, ammonium bicarbonate ball fertilizer was applied deeply, and the nitrogen loss was 3% 30 days after fertilization.
2018-07-15 -
The secret of nitrogen fertilizer has been uncovered for the first time in the world! Cai Yifang, a specially appointed researcher at the Academia Sinica, identified the key genes for plant nitrate uptake.
The secret of nitrogen fertilizer has been uncovered for the first time in the world! Cai Yifang, a specially appointed researcher at the Academia Sinica, identified the key genes for plant nitrate uptake.
2019-09-23 -
Eight methods of reducing ammonia nitrogen in Aquaculture
China Fisheries Channel reported that there is a high concentration of ammonia nitrogen in many industrial wastewater, if the water rich in ammonia nitrogen is discharged into other water bodies, especially flow.
2019-02-28