Emulsifying Agent

A surface active material which facilitates the suspension of one liquid to another

Endozoochory Mechanism :

The ingested weed seeds are passes in variable from 0.2% to 9.0% with the animals excreata which is dropped wherever the animal moves eg., fox-ber.

Fouling Crops

Whose cultural practices allow the infestation of weeds intensively eg., direct seeded upland.rice.

Flooding

A method of irrigation, where the land is supplied with sufficient water enough to stand above the surface.

Flye Curing

A method of curring cigarette tabacco, wherein the leaves are.

Facuitative Weed

Weed of wild community origin, escaping sometimes to crop yield eg., cactus.

Fillar��

it is the inert inactive substance used to dilute the chemical for herbicide, insecticide or fungicide etc.

Forage Crop:

Crop grown primarily for livestock feed harvesting either'hay, silage, green fodder grazing e.g., lucerne.

Field Heat :

It refers to the heat of anything like seed, packing material, bags etc. put in the storage in excess of the heat at the storage temperature.

Foundation Seed

A second category of seed, in order of genetic purity, multiplied by breeder's seed under strict supervision and complete enforcement of seed production technique. The seed production may be done by the seed agencies directly or by the certified growers

Free-Flowing Seed

A smooth surfaced non-chaffy seed which moves freely through seed sampler or seed mixing machines�

Furnigation

It is a process of using chemical like celphos, E.D.B. etc., in a leak proof container used for seed storage which produces texic fumes and kills all the storage pests.

Field Capacily :

The percentage of water remaining in soil two or three days after having been saturated and after free drainage has practically ceased.

Farm Forestry:

Refers to the practice of growing raising forest trees on the waste land of the farm like around the buildings, all along the fences or the roads with a view to utilize the waste land in a purposeful manner.

Foliage Applied Herbicides:

Herbicides when applied over the foliage are known as foliage applied herbicides. They are always post-emergence herbicides.

daptomycin

A cyclic lipopeptide antibiotic that inhibits gram-positive bacteria.

data deficient species

A taxon that is not evaluated for its risk of extinction by the International Union for Conservation of Nature due to lack of sufficient information.

deacidification

To raise the pH of a substance or material to above 7.0

dead wood

Dead branches or completely dead standing trees resulting from natural processes or anthropogenic activity such as logging

decontamination

The removal of contaminants or contaminating material from a product, a person, an object or an environment.