Lapas attēli
PDF
ePub

CRS-22

following recommendations for the future solution to the animal waste

problem: (21)

A.

B.

C.

D.

Considerable emphasis be given to the assessment

of feasible ultimate disposal techniques for untreated solids and liquids as well as for the residues from waste treatment processes.

All animal waste research and developmental projects
should be oriented to obtain cost data to evaluate
potential treatment and abatement systems. Economic
studies should be conducted to evaluate:

(1) the effect of the costs of waste control and
abatement on costs of animal production,

(2) the effect of the costs of animal production on the
costs of waste control and abatement,

(3) the costs that will eventually be borne by

the consumer, and

(4) the probable need for subsidies to insure adequate animal waste control and abatement.

Large scale animal production enterprises be con-
sidered as individual industries, and that they

be considered subject to State and Federal regulations
concerning pollution abatement. Current Federal and
State regulations should be reviewed to ensure that
they adequately cover pollution caused by animal
production facilities.

That forward oriented review be conducted in five
years to assess the developments in that time and to
develop directions for the future.

12.

How have Federal Government agencies contributed to minimizing
pollution?

The U.S. Department of Agriculture, the Department of Health Education and Welfare and the Department of the Interior have all contributed substantially to research efforts to seek effective means of dealing

with the animal waste problem.

CRS-23

USDA action programs are directed toward (a) educa-
tional programs that recommend designs and management
techniques that will alleviate pollution through use
of current knowledge; (b) technical assistance within
soil conservation districts and through extension
specialists; and (c) loans to individuals and associa-
tions or groups of farmers who need to improve their
facilities--improving animal-waste handling facilities
would qualify. USDA envisages expansion in all types

of activities and considers incentive payments par-
ticularly necessary in this area. (1)

The objective of USDA's research program is to develop effective methods of treating and disposing of animal wastes through a number of methods, including lagoons, oxidation ditches, and application to cropland. Research is also being pursued to learn more about the quantity of animal wastes that may be applied to cropland without damage to crops or the land, as well as new methods of disposal.

per

Land application rates of feedlot wastes are highly varied and at the present time range from as little as five tons per acre year to as much as 300 tons per acre depending on the crops grown, the condition of the land, the kind of manure, and the use of the crop produced, whether for grain or forage.

Where barnyard manures have been applied to crops, yields have not substantially increased when more than 6-10 tons per acre have been applied annually. It is probable that feedlot or liquid wastes could be applied at heavier rates than barnyard manure because of the lower soluble nitrogen content. Best results have been obtained when the manure is supplemented with phosphate fertilizer.

69-133 O 72 pt. 2 18

CRS-24

Excessive rates of manure addition may result in abnormal vegetative

growth and lodging of some crops.

Where drought or excessively wet soil conditions prevail during the growing season, the manure may not decompose and could result in production of compounds that are toxic to plants. Too much organic material in the root zone could result in drying of the soil so germanation and stand could be adversely affected.

Pasture or silage crops produced on old feeding areas may contain

so much nitrate that the feed is toxic to ruminants.

Agronomists fre

quently recommend that corn or sorghum produced on heavily manured areas should be harvested for grain. Crops for silage should be grown on soils receiving chemical fertilizers so the amount of nutrients available during the critical growing season can be more accurately controlled.

(20)

USDA's research programs with respect to animal wastes include finding uses of animal wastes for profit or at least on offsetting disposal costs. One example is the conversion of poultry feathers into protein feed. Research for both on-farm and off-farm uses and processes is likely to continue in the future. In this area of emphasis, action programs are generally in the form of technical assistance in the construction of processing facilities.

USDA's research programs have also been directed toward developing more information concerning land use planning. This research is needed to develop acceptable techniques for protective zoning for agricultural production in the future.

CRS-25

The United States Department of Agriculture administers the Rural Environmental Assistance Program (REAP), (formerly the Agricultural Conservation Program), authorized by the Soil Conservation and Domestic Allotment Act of February 29, 1936, through which the Federal Government shares with individual farmers, ranchers, and woodland owners the cost of carrying out soil, water, woodland, and wildlife conservation practices, including pollution control practices for agriculture.

The Federal Government generally shares 50 per cent of the cost of carrying out approved practices. The Government's share of costs may

range up to 80 percent for low-income farmers and for certain high priority practices and projects.

The maximum Federal cost-share for a person during the program year

is $2,500 (except pooling agreements, in which case the limitation is $10,000).

This program is administered locally through County Offices of the Agricultural Stabilization and Conservation Service, under the direction of ASC farmer committeemen.

The final authorization for REAP for the 1971 program is $150 million. The advanced Congressional authorization for the 1972 program is $195.5

million.

An important function of the Department of Health Education and Welfare in this area has been to provide educational materials, manuals and guides, for use by program administrators in dealing with off-farm problems of animal wastes, particularly in areas where waste disposal

CRS-26

has resulted in conflicts between feedlot operators and nearby urban

people.

Under the DHEW programs technical assistance supported by organized training programs will be provided to interested control and health agencies.

The DHEW's research programs have also been directed toward minimizing pollution by improved use of existing technology as well as by developing new and improved methods for converting wastes to useful products. This research includes "conversion of animal wastes to animal feed, soil conditioners or fertilizer carriers, and extraction of protein for use as a food supplement. The potential for reuse or recycling of these wastes is also studied." (1)

The Department of the Interior has contributed substantially to the research effort to develop improved techniques of animal waste disposal in a manner to prevent air and water pollution.

Water quality standards adopted by all 50 States
and approved by the Secretary of the Interior include
plans for implementation for inter-State streams, lakes,
and coastal waters. With few exceptions these standards
deal effectively with municipal and industrial wastes
and their effect on water quality. However, with regard
to agricultural waste in general many difficulties have
been encountered in developing appropriate and workable
standards. Additional technical information is needed
on the characteristics of runoff and on the effective-
ness of existing standards requirements." (1)

Many of these projects are now centralized in the Environmental Protection Agency.

« iepriekšējāTurpināt »