How to use micronutrients correctly

In the process of cultivating farmers, farmers always believe that the use of micronutrients in crops will lead to high yields. Actually, the author learned from relevant experts that micronutrient fertilizers are developed according to the needs of different crops or crops at different growth stages. Micro Fertilizer must be used in a targeted manner in order to receive good results. The following describes the efficient use of commonly used fertilizers as follows:

When soaking (seed-dressing) micro-fertilizer is selected and used as micro-fertilizer for soaking seeds, the micro-fertilizer must be first dissolved into a certain concentration of aqueous solution, and then the seeds are soaked therein, and the physiological function of the seed water swelling can be used to inhale trace elements into seeds. The body can be sown after drying. Frequently used as soaking seed fertilizer and use methods are: 1. Soaking with zinc fertilizer. When soaked with zinc fertilizer, the concentration is 0.02% to 0.05%, and the seeds are immersed uniformly. The soaking concentration for rice is 0.1% and the soaking time is 24 hours. When dressing, mix 2 grams to 6 grams of zinc fertilizer per kilogram of seed. 2. Molybdenum soaking. When dressing seed, 1 kg-2g of molybdenum fertilizer can be used per kilogram of seed, stirring evenly; the concentration when soaking seeds is 0.05%-0.1%, soaking for 12 hours. 3. Manganese fertilizer soaking. For seed dressing, 2 g to 4 g of manganese fertilizer can be used per kilogram of seed; the concentration of soaking seed is 0.05% to 0.1%. 4. Copper fertilizer soaking. For seed dressing, 0.6 g to 1.2 g of copper fertilizer per kilogram of seed may be used; 0.01% to 0.05% of soaking concentration is appropriate.

The method of dipping root microelement fertilizer using microelement fertilizer as crops is to first dissolve the microelement fertilizer into a certain concentration of aqueous solution, then soak the roots of the crop plants, and let the trace elements enter the plant body through the profile. Boron fertilizer is commonly used for dipping root micronutrients, and the concentration when dipping root is appropriate is 0.01% to 0.1%.

The use of basal fertilizer as an ingredient is an indispensable element of crop growth. When micro-fertilizer is used as the base fertilizer, a certain amount of micro-fertilizer can be mixed with fine-dry soil (or fine slag), and the crop can be applied to the ground in combination with ploughing and soil preparation before planting the crop. When zinc fertilizer is used as base fertilizer, the dosage per acre is 1 kg to 2.5 kg; when manganese fertilizer is used as a base fertilizer, the dosage per acre is 1 kg to 2 kg. It should be noted that due to the small amount of micro-fertilizers, it is not appropriate to use them deeper. It should be used in a timely manner in accordance with the characteristics of the crop's fertilizer requirements.

It is used as topdressing to mix micro-fertilizer with fine soil, or add water in proportion, and apply it to the soil during the growing season. When used in a paddy field, it may be mixed with fine soil and then applied (or splashed after watering); when dry land is applied, dry manure (or manure water) is generally added before application. When zinc fertilizer is used as top dressing, the amount of 1 kg to 1.2 kg per mu is appropriate.

The most common method for selecting micronutrients for foliar application of micronutrients is to formulate foliar sprays with water at a certain concentration. The foliar spraying concentration of zinc fertilizer is 0.1% to 0.2%, and the dosage per acre (medicinal water) is approximately 25 kg to 50 kg; the foliar spraying concentration of molybdenum fertilizer is 0.05% to 0.1%; leaf spray of manganese fertilizer The application concentration is 0.05%-0.1% (30-50 litres per acre of medicine); the foliar spray concentration of iron fertilizer is 0.2%-1%; the foliar spray concentration of copper fertilizer (copper sulfate solution) is 0.02 to 0.05% is appropriate. It should be noted that the water added to the application of trace fertilizer should be clean and should be fully stirred. Spraying time should be selected when there is no dew, because dew liquid fertilizer liquid is not easy to adhere to the foliage and easily diluted, should not be sprayed on a hot noon, due to the strong sunlight, evaporation, easy to cause burns at noon. And it is unfavorable to absorb. Therefore, the best time to spray micronutrients should be after 4:00 pm, when the temperature drops, the leaves of the crops are relatively dry, and the fertilizer is more likely to adhere, and after one night time, the nutrients of micronutrients can be fully Crop absorption.

Author: Qin Wenping