Planting Technology Lists
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What fertilizer can be applied to prevent the premature senescence of cotton?
What fertilizer can be applied to prevent the premature senescence of cotton? Please introduce the causes of premature senescence of cotton: 1. Transgenic hybrid insect-resistant cotton needs more potash fertilizer than conventional hybrid cotton, and the rate of absorption and transformation of potash fertilizer is slower, if the amount of potassium application is insufficient, it is easy to show symptoms of potassium deficiency. Now there are many old cotton fields and few new cotton fields.
2018-07-14 -
What fertilizer should be applied to bananas before budding?
What fertilizer should be applied to bananas before budding? Banana is a potassium-loving fruit tree, which absorbs the most nutrients in the process of growth and development, especially potassium. If the supply of potassium fertilizer is insufficient, the banana will grow poorly, such as thin plants, easy lodging, small banana buds, thin banana fruits, low yield and poor quality. not resistant to storage and transportation.
2018-07-14 -
How to apply nitrogen fertilizer to fruits?
How to apply nitrogen fertilizer to fruits? The sweetness of fruit is determined by the amount of sugar in its cells, while the accumulation of sugar is closely related to nitrogen fertilizer. Therefore, the sweetness of fruit is related to nitrogen fertilizer. Within 28 days after flowering, the cells of young fruits are in a state of division and filling.
2018-07-14 -
Can only nitrogen fertilizer be applied to the base fertilizer in autumn and winter?
Can only nitrogen fertilizer be applied to the base fertilizer in autumn and winter? Please introduce that when some farmers are used to sowing crops in autumn and winter, they apply 80 kilograms of ammonium bicarbonate per mu or 60 kilograms of urea per mu. This single application of nitrogen fertilizer will often cause some adverse consequences. First, it reduces the utilization rate of chemical fertilizer. Excessive application of ammonium bicarbonate and urea.
2018-07-14 -
What should be paid attention to when applying all kinds of nitrogen fertilizer?
What should be paid attention to when applying all kinds of nitrogen fertilizer? Please introduce the following problems that should be paid attention to when applying all kinds of nitrogen fertilizer: 1. Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizer. Ammonia volatilization will be produced after mixed application, which will reduce the fertilizer effect. 2. Ammonium bicarbonate is not suitable for spreading. The property of ammonium bicarbonate is very unstable, after spreading to the surface, in.
2018-07-14 -
What kind of fertilizer should be used in the flowering and fruiting period of strawberries?
What kind of fertilizer should be used in the flowering and fruiting period of strawberries? Please introduce strawberry continuous flowering and fruiting, more flowering, large fruiting, long flowering and fruiting period, and more phosphorus and potassium fertilizer consumption. once there is less phosphorus and less potassium during flowering and fruiting, it will reduce cold resistance, less flowers, weak buds and affect flowering and fruit. not only the fruit setting rate is low, the fruit is easy.
2018-07-14 -
What is the natural synergist of urea?
What is the natural synergist of urea? Please give introduction to China's agricultural consumption of urea nitrogen fertilizer close to 20 million tons per year (pure nitrogen), urea nitrogen fertilizer lost through gaseous volatilization, leaching and runoff reached 10 million tons, equivalent to more than 21 million tons of urea, a direct economic loss of 45 billion yuan, not only resulting in energy.
2018-07-14 -
What is the effect of long-acting urea? How do I use it?
What is the effect of long-acting urea? How do I use it? Please introduce the long-acting urea, which is made by adding a certain amount of urease inhibitor (hydroquinone) to the ordinary urea during the process. The average yield of long-acting urea in one deep application is 14.6% higher than that of ordinary urea (seed fertilizer + topdressing), and the increase rate is 8.6% Mel 25.
2018-07-14 -
What is urea? What is good to use urea?
What is urea? What is good to use urea? Please introduce that urea belongs to amide nitrogen fertilizer, accounting for 35% of China's nitrogen fertilizer output, accounting for 40%, second only to carbamines. 1. The molecular formula of urea is CO (NH2) 2, which contains 46% nitrogen (N) and shows white or yellowish crystals. It is soluble in water, and the aqueous solution is neutral.
2018-07-14 -
How to apply agricultural fungicides?
How to apply agricultural fungicides? Please introduce the method of agricultural fungicides are chemicals that can directly kill spores and mycelium of fungi or bacteria, or inhibit the growth and development of bacteria. The main results are as follows: 1 Agricultural fungicides must be used before or at the initial stage of crop diseases, which is different from killing insects and mites. Kill insects and mites.
2018-07-14