A study conducted to evaluate the effect of heated-air velocity and air-to-cotton ratio on the amount of moisture evaporated from seed cotton in cotton gin dryers established minimum practical airflow rates for the dryers. The results can be used to reduce energy requirements in the transport...

Numerous methods for measuring multifactor productivity have been used by economists. This report uses a recently developed approach, data envlopment analysis, to measure productivity. This method can be used not only to calculate productivity but also to divide productivity measures into...

Brazil's agricultural sector underwent major changes in the past two decades. Though Brazil is abundant in labor, land, and animal power, government subsidies encouraged the use of fertilizer and machines. Since productivity growth arises from technical change, Brazil's drive to modernize its...

This publication includes compounds evaluated from 1944 to 1976 ,at Fort Detrick, MD, for their growth effects on plants. The manually recorded results of these tests on the biological activity of 31,000 chemicals were assembled with computer-checking programs and are systematically summarized...