Organic compounds that bind metal ions, making them more available to plants (e.g., iron chelates).

Solutions of pesticides or nutrients applied to soil around plant roots.

Plant cultivation using nutrient solutions (hydroponics) or synthetic fertilizers.

A hard, silica-rich sedimentary rock that weathers to produce nutrient-poor soils.

A fertile soil type found in temperate grasslands, rich in organic matter.

An organic fertilizer high in nitrogen, phosphorus, and potassium.

A plant composed of genetically different tissues (often showing variegation).

Having a tough, firm but flexible texture (like cartilage); often describing leaf margins or fruit walls.

A fleshy outgrowth near the hilum of certain seeds (e.g., castor bean), often containing oils that attract ants for dispersal.

A dry, one-seeded fruit where the seed coat is fused to the ovary wall (characteristic of grasses).