Microbial fertilizers are suitable for field crops, vegetables, fruit trees and other economic crops. Can do basal fertilizer, top dressing, can be applied to ditch or hole, can also be used for seed dressing, soaking, rooting or foliar spray, depending on the specific type. Note that the beneficial microorganisms in microbial fertilizers are alive. Therefore, they must not be mixed with pesticides, chemical fertilizers, and peracids and overbased substances during storage, and should not be mixed with large amounts of chemical fertilizers or acid-alkaline fertilizers. Alkali or drought will affect the effect of bacterial fertilizer.
Soil conditioners are not intended for crop types and are mainly applied to soil disorders. It is recommended that crops should be cultivated according to the characteristics of the land that are suitable for the application. The selection of conditioners mainly depends on the soil amendment objectives, soil improvement effects, and material characteristics of the conditioners. If it is a natural resource conditioner, the application amount can be larger, and the range of suitable dosage is wider; and the artificially synthesized conditioner has a much smaller amount due to higher efficiency and cost. The main soil conditioners on the market are soil water retention agents and brassinolides.
Humic acid fertilizers are currently used mainly for wheat, corn and other economic crops such as cotton in field crops; they are also widely used in fruit trees and facilities for economic crops. In terms of application methods, water-soluble solid or liquid products are mainly foliar fertilizers, seed fertilizers or soaking, and root immersion. Generally about 800 times diluted.
The new foliar fertilizer is particularly suitable for fruits, vegetables and vegetables with short growing period and high economic value. It is suitable for top-dressing and pre-marketing fertilizers. The main varieties are: a large number of elements water-soluble fertilizers, water-soluble fertilizers in the amount of elements, amino acid water-soluble fertilizers, trace elements water-soluble fertilizers, water-soluble fertilizers containing humic acid, organic water-soluble fertilizers.
Slow / controlled-release fertilizer is characterized by nutrient release and crop absorption synchronization, saving resources, protecting the environment, saving time and labor. When choosing, pay attention to: when buying, pay special attention to nutrient content, NPK ratio and nutrient release period, as a basis for rational application. Suitable for a one-time application of basal fertilizer, generally 30-50 kilograms per acre, separated from the seeds, laterally applied 10 to 15 cm or layered fertilization. Also pay attention to the appropriate mix of nitrogen, phosphorus and potassium, and whether there is any defertilization at the later stage. Doing topdressing is timely and appropriate.
Carbon dioxide fertilizers Commercial carbon dioxide fertilizers are mainly used for facility agriculture and are not limited to specific crops; they are classified into three forms: solid, liquid and gas. Solid fertilizers can be dry ice or granules. When dry ice is used, people cannot directly contact with it to prevent cold damage; granules can be directly sprinkled on the ground or buried in soil. The amount of about 40 kilograms per mu can be released continuously within 40 days. When the liquid manure is used, the cylinder filled with carbon dioxide is placed in the protected area, and the carbon dioxide gas is sent through a pressure relief valve to the site where the crop can be fully utilized. When the bottle mouth pressure is 0.1MPa~0.12MPa, 6~12 minutes can be released every day. The gaseous fertilizer is applied to 1 hole per square meter, with a depth of 3 cm and an application rate of not less than 6 to 7 kg per mu. One use can continuously release carbon dioxide for more than 30 days.
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