What is the best base fertilizer for planting corn

It is recommended to use decomposed organic fertilizer combined with nitrogen phosphorus potassium compound fertilizer as the base fertilizer for planting corn. The main choices for base fertilizers include composted farmyard manure, urea, superphosphate, potassium sulfate, and bio organic fertilizers.

1. Fermented Farm Fertilizer

Fermented farm fertilizer contains rich organic matter and trace elements, which can improve soil structure and enhance soil water and fertilizer retention capacity. Before use, it should be fully fermented and decomposed to avoid burning the seedlings. The dosage per acre should be controlled at 2000-3000 kilograms, combined with deep plowing and plowing into the bottom layer of the soil.

2. Urea

Urea, as a quick acting nitrogen fertilizer, can promote the growth of maize stems and leaves during the seedling stage. It is recommended to mix the base fertilizer evenly with the soil before application to avoid ammonia volatilization caused by concentrated fertilization. The usage per acre is about 10-15 kilograms, and for sandy soil, it needs to be reduced appropriately.

III. Superphosphate

Superphosphate can provide the phosphorus element needed for corn growth, promote root development and early tillering. The calcium element it contains can also regulate soil acidity and alkalinity. When applying base fertilizer, apply 30-40 kilograms per acre and mix thoroughly with the cultivated soil layer.

4. Potassium sulfate

Potassium sulfate can enhance the lodging resistance of corn and improve grain plumpness. When making base fertilizer, it is recommended to apply 15-20 kilograms per mu, and the effect is better when used in combination with other fertilizers. Saline alkali land should be used with caution to avoid exacerbating soil salinization.

V. Bioorganic Fertilizer

Bioorganic fertilizer contains active microbial communities that can activate soil nutrients and inhibit soil borne diseases. Combined use with chemical fertilizers can improve fertilizer utilization efficiency. Apply 500-800 kilograms per acre, and cover with shallow tillage one week before sowing.

The application of corn base fertilizer should be adjusted according to soil testing results. The proportion of organic fertilizer should be increased in sandy soil, and phosphorus and potassium fertilizers can be appropriately increased in clay soil. Timely irrigation after fertilization promotes nutrient dissolution and avoids fertilizer burning of seeds. During the growth period, combined with topdressing to supplement trace elements, pay attention to observing the growth of plants and adjust the fertilization plan in a timely manner. Reasonable crop rotation can reduce continuous cropping obstacles and improve fertilizer utilization efficiency.