Comprehensive fertilization technology（一）

Scientific and reasonable fertilization can not only maintain and improve soil fertility, but also increase yield, improve crop quality and enhance stress resistance. Today I will bring you a set of fertilization techniques, which is quite comprehensive!

1. What problems should be paid attention to when applying chemical fertilizers

(1) It is not advisable to water immediately after urea is used.

(2) Ammonium bicarbonate should not be applied to the soil surface.

(3) Ammonium bicarbonate should not be applied in greenhouses and greenhouses.

(4) Do not mix ammonium nitrogenous fertilizers with alkaline fertilizers.

(5) Do not apply nitrate nitrogen fertilizer in rice fields.

(6) Ammonium sulfate is not suitable for long-term application.

(7) Phosphate fertilizers are not suitable for scattered application.

(8) Potassium fertilizer should not be applied in the late crop.

(9) Avoid long-term use of chlorinated fertilizers alone, and avoid using them on chlorine-free crops.

(10) Nitrogen-containing compound fertilizers should not be used in large quantities for legume crops.

2. How to use biological fertilizer correctly

(1) Comprehensively understａnd the basic information of biological fertilizers, such as production date, shelf life, usage amount, usage method, etc. If it is not bought and used now, it should be stored in accordance with the instructions, avoiding light, ventilation and drying.

(2) Understａnd the main functions of microorganisms in biological fertilizers, and apply to crops. For example, rhizobia fertilizer is suitable for legume crops as an inoculant for nodulation and nitrogen fixation; phosphorus bacteria fertilizer can convert insoluble phosphorus in the soil into available phosphorus and inorganic phosphorus.

(3) Master the application time and application technology. It can be summed up with the words "early, near and even", that is, the application time should be as early as possible. It is generally applied as base fertilizer, seed fertilizer and seedling fertilizer; the distance between the crop roots should be close when applying fertilizer; the seed and seedling fertilizer should be mixed well.

(4) Simultaneous application with organic fertilizer. The mixed use of the two fertilizers will improve the fertilizer effect.

(5) Cover the soil immediately after fertilization to avoid direct sunlight, kill microorganisms and reduce the utilization rate of biological fertilizer.

(6) It should not be mixed with chemical fertilizers and fungicides, otherwise it will inhibit the growth of microorganisms in biological fertilizers, or even kill microorganisms, thereby affecting fertilizer efficiency.

(7) Avoid mixing with unripe farmyard manure, because farmyard manure will ferment in the process of decomposing, which will directly kill biological bacteria.

(8) Different types of biological fertilizers should not be mixed. At present, there are many types of bacteria in the bio-fertilizers on the market, and the active bacteria contained in them are different. It is not clear whether they have mutually counteracting effects. If they counteract each other, the fertilizer efficiency will be reduced.

3. Why should fecal organic fertilizer be fully decomposed and applied

Unripe manure organic fertilizers carry a large number of pathogenic microorganisms and parasitic roundworm eggs. After being applied to farmland, some of them attach to crops and cause direct pollution, and some enter the soil to cause indirect pollution.

In addition, unripe manure-type organic fertilizers are applied to the soil before they can be absorbed and selected by crops after fermentation. On the one hand, high temperature can cause seedling burning, and on the other hand, ammonia gas will be released, causing poor plant growth. Therefore, When applying manure organic fertilizer, it must be fully decomposed.

4. Pay attention to those problems when applying organic fertilizer

(1) The nutrients contained in organic fertilizer are not omnipotent. Organic fertilizer contains more types of nutrients, which is an advantage compared to chemical fertilizers with a single nutrient, but it contains too little nutrients to meet the needs of high-yield and high-quality crops. So it should be used with some fertilizers!

(2) Organic fertilizers decompose slowly and have a late fertilizer effect. Although organic fertilizer has full nutrient elements, its content is low and it decomposes slowly in the soil. When the amount of organic fertilizer is not large, it is difficult to meet the needs of crops for nutrient elements.

(3) Organic fertilizer needs to undergo fermentation treatment. Many organic fertilizers contain germs, insect eggs and weed seeds. Some organic fertilizers contain organic compounds that are not conducive to crop growth. Therefore, they should be applied after composting, fermentation, and processing. Raw manure cannot be put on the ground.

Zhengzhou Delong Chemical CO., Ltd. is the production base of plant growth regulators in China, which established in 2009, specializing in offering plant protection products. If you have any question, contact us any time.