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THE IMPACT OF SCIENCE ON AGRICULTURE [PDF]

open access: yesNature, 1942
In spite of considerable diversity, agricultural systems in the prescientific days usually possessed two features in common; they aimed first and foremost at providing complete subsistence for the community, money crops being a subordinate consideration; and they included measures for conserving the productiveness of the land, either by the so-called ...
openaire   +1 more source

Optimizing Production of Heat Stressed Broilers

open access: yesJournal of Agricultural and Marine Sciences, 1996
Broiler chickens are highly susceptible to heat stress during the time at which their growth rates ought to be highest. In order to overcome the deleterious effect of heat stress, consideration has to be given to ways in which the heat production of the ...
R. G. Teeter
doaj   +1 more source

Animal Health in the Tropics

open access: yesJournal of Agricultural and Marine Sciences, 1996
Most developing countries in Africa and Asia are located in the tropics (23° north and south of the equator). The poor productivity of ruminants in these countries is mostly due to inadequate nutrition, infectious diseases, low rates of reproduction ...
M.R. Jainudeen, A. R. Sheikh-Omar
doaj   +1 more source

Partitioning of Chemical Constituents in the Leaf and Stover of Sorghum Grown in a Saline Soil

open access: yesJournal of Agricultural and Marine Sciences, 1996
Field and laboratory studies were conducted in l990 and 1991 to determine the concentrations of total nonstructural carbohydrates (TNC), crude protein, cellulose,  hemicellulose.
H.A. Esechie, F.R. Miller
doaj   +1 more source

Economic Threshold Level of Chenopodium album L. and Phalaris minor Retz. in Wheat

open access: yesJournal of Agricultural and Marine Sciences, 1998
Two field experiments were conducted to determine the economic threshold level of C. album and P. minor in wheat. Different densities viz., check (weed free). 50. 100. 150. 200. 250. 300. 350. 400.
A. Tanveer   +4 more
doaj   +1 more source

Effect of Sex-linked Feathering Genes on Body Weight, Age At Sexual Maturity, Feed Intake and Subsequent Laying Performance of Baladi Chickens

open access: yesJournal of Agricultural and Marine Sciences, 1997
A total of 320 twenty week-old slow and rapid feathering Saudi Arabian Baladi pullers were used to assess the effect of sex-linked feathering genes on body weight, age at sexual maturity, feed intake and subsequent laying performance.
A. AI-Sobayel, A.A. AI-Mulhem
doaj   +1 more source

Factors Regulating In Vitro Germination of Date Palm Pollen Grams After Storage

open access: yesJournal of Agricultural and Marine Sciences, 2000
Dried pollen grains of three date palm (male) cultivars grown in Oman were stored either in a freezer (-18°C), a refrigerator (4 to 5°C), or at room temperature (23 to 25°C) for 6 or 12 months.
M.O. El Mardi   +2 more
doaj   +1 more source

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