- 産業: Agriculture
- Number of terms: 29629
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A soil containing soluble salts with sufficient exchangeable sodium to interfere with the growth of most crop plants. Soil whose saturation extract has an electrical conductivity greater than 4 dS/m, sodium adsorption ratio greater than 15, and pH less than 8.5 (See saline soil and sodic or alkali soil).
Industry:Agriculture
A soil that contains sufficient salt in the root zone to impair plant growth. Its electrical conductivity is greater than 4 dS/m and exchangeable sodium percentage is less than 15.
Industry:Agriculture
Like an arrowhead; triangular, with basal lobes pointing down toward the earth.
Industry:Agriculture
A disease caused by a fungus. Called rust because it releases reddish-brown powdery masses of uredospores.
Industry:Agriculture
The overflow of water from a field carrying with it dissolved nutrient or nutrient-containing soil particles.
Industry:Agriculture
The laterally enlarged cuplike apex of the pedicel; they are beneath the sterile lemmas.
Industry:Agriculture
