Productivity and Efficiency

According to the U.S. Environmental Protection Agency, water efficiency is the smart use of our water resources through water-saving technologies and simple steps. Using water efficiently will help ensure reliable water supplies today and for future generations. Topics addressed in this theme provide insights, lessons, and guidance on how diverse stakeholders are working to improve water management and reduce water use.

Productivity and Efficiency Resources

Report to the Government of India on Design Criteria Construction Guide, and Material Standards for Irrigation Pipelines

Publication date:
May 1, 1970
U.S. Agency for International Development
this report documents the findings and recommendations of the author who was engaged as a consultant to USAID and the government of India for a four-month period to determine what is being done in the sphere of irrigation pipelines and to appraise and make recommendations for improvement. The...Read more
Regional/Country focus:
India
South East Asia

Vascular Aquatic Plants for Mineral Nutrient Removal from Polluted Waters

Publication date:
March 1, 1970
U.S. Agency for International Development
Aquatic plants have potential as feedstuffs in certain nations, but the economics of harvesting and processing would prohibit their direct utilization as a forage in technologically advanced nations. However, nutrient pollution is accelerating rates of eutrophication of natural waters in many areas...Read more

Tubewell Irrigation in the Punjab

Publication date:
January 1, 1970
U.S. Agency for International Development
the purpose of this paper is to estimate the time required to irrigate an acre of land with varying tube well installations in India. This is done by estimating the brake horsepower required by various tube well installation under varying conditions of soil seepage, varying size of pipes and...Read more
Regional/Country focus:
India
South East Asia

Fishculture Survey Report for Peru

Publication date:
January 1, 1970
U.S. Agency for International Development
A survey of fisheries in Peru during May 22 to June 6, 1970. The visit, under the sponsorship of USAID and Peru, was for the purpose of providing technical advice to the development inland fisheries.Read more
Regional/Country focus:
Peru
Latin America and the Caribbean

Inland Fisheries Program of Thailand

Publication date:
January 1, 1970
U.S. Agency for International Development
Recommendations for an expanded program of fisheries development in Thailand are based upon conferences held with personnel of the Thai department of Fisheries and USAID. Observations were made during visits to provide recommendations while addressing stocks of fish and the species which are most...Read more
Regional/Country focus:
Thailand
East Asia and Pacific

Prospects of the World's Fishery Resources With Emphasis on the Western Hemisphere

Publication date:
January 1, 1970
U.S. Agency for International Development
The world's production from the aquatic environment, excluding whales, was doubled in the decade between 1952 and 1962, from 22 million metric tons to 45 million metric tons and in the period from 1962 to the present, from 45 million metric tons to about 70 million metric tons. The most rapid...Read more
Regional/Country focus:
United States
North America

Food Habits and Feeding Chronology of Channel Catfish, Ictalurus Punctatus (Rafinesque) in Conowingo Reservoir

Publication date:
January 1, 1970
U.S. Agency for International Development
The single 24-hour feeding chronology study indicated that subadult and adult catfish fed heavily during the daylight hours although some feeding also occurred in the night. The major foods eaten by subadults and adults differed over the 24-hour period. Fishes formed the hulk of the diet at 0600...Read more
Regional/Country focus:
United States
North America

Alkalinity, Hardness, and Productivity of Lined Ponds

Publication date:
January 1, 1970
U.S. Agency for International Development
THE APPLICATION OF 1120 KILOGRAMS OF BASIC SLAG PER HECTARE (HA) RAISED THE CONCENTRATIONS OF CALCIUM, MAGNESIUM, CARBONATES, AND BICARBONATES, DEPRESSED CARBON DIOXIDE TENSION, AND ELEVATED PH, BUT SIGNIFICANT TREATMENT EFFECTS IN THE PHOTIC ZONE WERE SOMETIMES MASKED BY THE DIEL EFFECTS OF...Read more

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