Agronomy knowledge

Agronomist dictionary

Short and clear definitions of agronomic terms: soil cultivation, sowing, nutrition, plant protection, machinery, and crop storage.

Terms in section: 4

P

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Photoperiod sensitivity

This is a biological response of plants to the length of day or night, which regulates the timing of flowering and vegetative development.

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Physical purity of seeds

It is the percentage by weight of pure seeds of the crop variety in a seed lot, free from foreign matter, weed seeds, and damaged kernels.

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Plant density

The number of living crop plants per unit area of a field at a specific stage of development.

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Pre-harvest moisture content

The percentage of water present in seeds or plant material just before harvest, which determines the timing for gathering crops and their storability.