- 行业: Agriculture
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Specifically, a soil in which the surface layer, at least down to normal plow depth, is neither acid nor alkaline in reaction. Practically, a soil in which the pH of the surface soil ranges between 6.6 and 7.4.
Industry:Agriculture
A group of people or institutes located in different places but working together for a common goal.
Industry:Agriculture
Any of the class or phylum Nematoda of elongated cylindrical worms parasitic in animals or plants free-living in soil or water. Generally microscopic, wormlike animals that live saprophytically in water or soil.
Industry:Agriculture
The rate of plant weight increase per unit leaf area.
Industry:Agriculture
The growing and survival of the best adapted plants in a given location, with selection occurring naturally without human intervention
Industry:Agriculture
A polymorphic microorganism that is nonmotile and that can be cultivated with difficulty on special media, and that lacks cell wall, being bound only by a unit membrane. The internal components of a mycoplasma are ribosome and DNA strands.
Industry:Agriculture
A sudden heritable change in an organism other than that due to the incorporation of genetic material from other sources. Most mutations are within the limit of a single gene.
Industry:Agriculture
A variant from the normal or wild type that is inherited; the product of mutation.
Industry:Agriculture
