1 Features of ammonium bicarbonate It is unstable white crystal, which easily absorbs moisture and decomposes. It is volatile and has strong ammonia smell; It decomposes faster as humidity and temperature go higher; It dissolves easily in water with alkaline reaction. 2 How to use ammonium bicarbonate? Ammonium bicarbonate is easily volatile in high temperature and high humidity. On either dry land or paddy field, deep placement is better than top application and heavy […]
Let’s take the cabbage for example. Some principles on fertilization are given below regard to the problems of excessive use of nitrogen fertilizer at single-dosage, unreasonable proportion of NPK, haphazard application of high-content-phosphorus compound fertilizer, insufficient use of organic fertilizer in some areas and severe acidification of vegetable field. Optimize the dosage of NPK according to soil fertility and aim yield; priority shall be given to basic fertilizer and application of basic fertilization and additional […]
Nitrogen It is easy for nitrate nitrogen to be absorbed when PH value is low It is easy for ammonium nitrogen to be absorbed when PH value is high. Superfluous application of potassium and phosphorus affects the absorption for nitrogen The lack of boron element goes against the absorption for nitrogen Phosphor The increase of zinc can reduce the absorption for phosphor Excessive nitrogen elements go against the absorption for phosphor Iron antagonizes […]
Foliar feeding addresses the immediate needs of a growing crop, as opposed to long-term soil deficiencies, by spraying water-soluble fertilizers onto the leaf surface of the plants. All plants absorb nutrients through their leaves and stems, using stomata—little openings similar to the pores of our skin. Plants absorb foliar sprays 20 times faster than soil-applied nutrients. Foliars help plants compensate for soil deficiencies (low fertility, low soil temperature, etc.) during the growing season. Foliar feeding […]
Essential microelements: carbon (C), hydrogen (H), oxygen (O), Nitrogen (N), phosphor (P) and kalium (K) Essential secondary elements: magnesium (Mg), calcium (Ca), sulphur (S) Essential trace elements: chlorine (Cl), ferrum (Fe), manganese (Mn), boron (B), zinc (Zn), copper (Cu), molybdenum (Mo) and nickel (Ni). More than 70 mineral elements can be found in plants and nearly all elements of natural world can be found in plants. However, 17 elements are essential for plants’ normal growth […]
Volatilization loss of nitrogen accelerates after the nitrorgenous fertilizer is insolated or stored in high humidity environment. Oxygen decomposes out when ammonium nitrate is in high temperature, and ammonium nitrate burns with combustion. Do not thump on the caked one, for which may cause explosion. Nitrorgenous fertilizer should be kept off sunshine, smoke and fire, diesel, kerosene and firewood. Previous Tips for Storage of Normal fertilizer Next […]
It is easy for ammonium bicarbonate to absorb moisture and thus cause volatilization loss of nitrogen; Ammonium nitrate is strong in the property of moisture absorption, it is easy to cake and deliquesce; Lime nitrogen and superphosphate tend to cake after absorbing moisture, which affects fertilization effect. Therefore, the fertilizers mentioned above should be stored in dry and shade place. Especially for the ammonium bicarbonate, the package should be firm and avoid air. […]
Microbe fertilizer means that the specific product containing live microbe is used in agricultural production to obtain particular fertilizer supply. Microbe can be summarized into three kinds: one is increasing the supply of plants’ nutrients through microbe’s vital movement so as to improve plants’ nutrient condition, thus increasing agricultural crops’ yield and quality. Microbes rival the harmful microbes in the soil, and can also resist and prevent disease, and even wipe out insects. Some representative […]
Deep placement The exact depth is flexible. If the dosage amount is small (75-150 kg/hectare), the depth is 10 cm; if the amount is big (300-375kg/hectare), the depth is 15 cm. Applying fertilizer according to soil property General calcareous soil is weakly-alkaline, acid or physiologically acidic fertilizer should be used, such as ammonium sulfate, ammonium chloride and other ammonium nitrogen fertilizer; for acid soil physiologically alkaline and calcareous nitrogenous fertilizer should be used. Applying […]
It is the peak season for fertilizer marketing and use in spring. But in recent years, some counterfeit fertilizers appeared in market and got many farmers deceived, which has not only caused direct economic loss but also delayed farming season and affected agricultural production. Therefore, we have some easy ways for identification in accordance with the features of shoddy products in the market as follows: From package For the qualified fertilizer produced by regular factories, […]
