Question

‌How‌ ‌Nitrogen‌ ‌deficiency‌ ‌of‌ ‌soil‌ ‌can‌ ‌be‌ ‌removed?‌

Answer 1

Hint: Depending on the clay content of the soil, the amount of nitrogen supply that best balances the benefits and risks varies. A “Moderate” soil nitrogen supply (\[25 - 50\] mg-N/kg soil) achieves the best balance in sand soils.

Complete answer:
A deficiency is a lack of anything or a set of circumstances that fails to fulfil a requirement. Plants, like humans and animals, go through the same process. The absence of any factor required for the plant's nourishment will result in morphological changes, which are an indication of a deficiency.
Planting leguminous plants, such as pulses, may help to alleviate soil nitrogen deficiency. Leguminous plants have root nodules in which nitrogen-fixing bacteria live, converting atmospheric nitrogen into plant-usable forms and thereby increasing soil fertility. Crop rotation will alleviate soil nitrogen deficiency.
Crop rotation is a simple process that involves planting alternate legume crops after each commercial crop cycle. Leguminous plants have root nodules in which nitrogen-fixing bacteria live, converting atmospheric nitrogen into plant-usable forms and thereby increasing soil fertility.
Good soil and water management practices are the most effective way to avoid nitrogen losses from agricultural lands. Testing the soil is the first step in reducing future nitrogen losses. A properly collected soil sample can provide an estimation of the amount of nitrate-nitrogen (\[{\text{N}}{{\text{O}}_{\text{3}}}\] – –N) present in the soil, which can be used to determine the amount of nitrogen fertilizer to apply for the crop being produced.
The best strategies for preventing nitrogen from entering streams and lakes are proper fertilization and management of surface runoff and erosion. Where coarse textured soils and high rainfall are normal, leaching losses can be avoided by splitting the nitrogen requirement into several applications.

Note:
When buying chemical fertilizers, nitrogen is often used as a plant fertilizer. Choose a fertilizer with a high first number in the NPK ratio if you want to apply nitrogen to your garden specifically. Using a nitrogen fertilizer to correct a nitrogen deficiency in the soil will give the soil a significant, fast boost of nitrogen, but it will fade quickly.