Neem cake is an organic by-product obtained from cold-pressing neem seeds or after the extraction
of neem oil. It is widely used in agriculture as a natural fertilizer and soil conditioner. Rich
in organic matter, it not only improves soil texture and aeration but also enhances
water-holding capacity. Neem cake contains natural compounds like azadirachtin, which act as a
pest repellent, making it a dual-purpose input for both soil fertility and pest management.
Along with organic matter, neem cake provides essential micro-nutrients such as calcium,
magnesium, sulfur, manganese, zinc, iron, and copper. These nutrients help in improving plant
growth, enhancing resistance to diseases, and boosting crop yields. Regular use of neem cake
enriches the soil with a balanced supply of nutrients, reduces dependency on chemical
fertilizers, and promotes sustainable farming practices. It is particularly valued in organic
agriculture for maintaining soil health and long-term fertility.
Macronutrients (approximate values):
Nitrogen (N): 2.0 – 5.0% | Phosphorus (P₂O₅): 0.5 – 1.0% | Potassium (K₂O): 1.0 – 2.0% | Carbon to Nitrogen Ratio (C:N): ~20:1 (supports microbial activity in soil)
Micronutrients:
Calcium (Ca) | Magnesium (Mg) | Sulfur (S) | Zinc (Zn) | Copper (Cu) | Manganese (Mn) | Iron
(Fe)
Neem cake not only supplies these nutrients slowly and steadily to crops but also improves soil
organic matter. Its bioactive compounds, especially azadirachtin, act as a natural pesticide and
nematicide, reducing harmful soil organisms while enriching beneficial microbes.
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