allotment is established or a deduction is computed a normal yield for each such crop in accordance with the provisions of this section and instructions issued by the Agricultural Adjustment Administration.

(1) Cotton.-(i) Where reliable records of the actual average yield of cotton per acre for the 5 years 1934 to 1938, inclusive, are presented by the farmer or are available to the committee, the normal yield for the farm shall be the average of such yields adjusted for abnormal weather conditions in accordance with instructions issued by the Agricultural Adjustment Administration.

(ii) If for any year of such 5-year period records of the actual average yield are not available or there was no actual yield because cotton was not planted on the farm in such year, the normal yield for the farm shall be the yield which, on the basis of all available facts, including the yield customarily made on the farm, weather conditions, type of soil, drainage, production practices, and general fertility of the land, the county committee determines to be the yield which was or could reasonably have been expected on the farm for such 5-year period.

(iii) The yields determined under subdivision (ii) of this subparagraph (1) shall be adjusted so that the average of the normal yields determined for all farms in the county for administrative area (weighted by the cotton acreage allotments established for such farms) shall conform to the county or administrative area average yield established by the Secretary.

(2) Wheat.-(i) Where reliable records of the actual average yields per acre of wheat for the 10 years 1928 to 1937, inclusive, are presented by the farmer or are available to the committee, the normal yield for the farm shall be the average of such yields adjusted for trends and abnormal weather conditions in accordance with instructions issued by the Agricultural Adjustment Administration.

(ii) If for any year of such 10-year period reliable records of the actual average yield are not available or there was no actual yield because the crop was not planted on the farm in such year, the normal yield for the farm shall be the yield which, on the basis of all the available facts, including the yield customarily made on the farm, weather conditions, type of soil, drainage, production practices, and general fertility of the land, the county committee determines to be the yield which was or could reasonably have been expected on the farm for such 10-year period. Where the productivity index most recently established for the farm in connection with the agricultural conservation programs is determined by the county committee to be an accurate reflection of the foregoing factors, the yield obtained by multiplying such index by the county average yield established by the Secretary shall be used as the normal yield for the farm.

(iii) The yields determined under subdivision (ii) of this subparagraph (2) shall be adjusted so that the average of the normal yields for all farms in the county (weighted by the wheat acreage allotments established for such farms) shall conform to the county average yield established by the Secretary.

(3) and (4) Not applicable. (b) Not applicable.

Section 7. SOIL-BUILDING PRACTICES

The soil-building practices listed in the following schedule shall count toward the achievement of the soil-building goal to the extent indicated therein, when such practices are carried out in 1939 in the areas designated and in accordance with the following specifications and such revisions thereof as may be issued by the regional director or by the State committee with the approval of the regional director. All soil-building practices shall be carried out in a workmanlike manner and in accordance with good farming practice for the locality.

Practices carried out with labor, seed, trees, and materials furnished entirely by any State or Federal agency other than the Agricultural Adjustment Administration shall not be counted toward the achievement of the soil-building goal. If a portion of the labor, seed, trees, or other materials used in carrying out any practice is furnished by a State or Federal agency other than the Agricultural Adjustment Administration and such portion represents one-half or more of the total cost of carrying out such practice, such practice shall not be counted toward the achievement of the soil-building goal; if such portion represents less than half of the total cost of carrying out such practice, one-half of such practice shall be counted toward the achievement of the soil-building goal: Provided, That labor, seed, trees, and materials furnished to a State, a political subdivision of a State, or an agency thereof by an agency of the same State shall not be deemed to have been furnished by "any State agency" within the meaning of this paragraph. No credit for meeting the soil-building goal shall be given for the planting and protection of forest trees planted under a cooperative agreement entered into with the Forest Service in connection with the Prairie States Forestry Project.

* * *

Full credit for meeting the soil-building goal will be given for any of the practices listed in the following schedule which are carried out under the Department's water facilities program if the entire cost of labor, materials, and equipment used in carrying out such practices is paid by the owner or operator or covered by a loan agreement executed by him. If a portion of such cost is not paid by the owner or operator or covered by a loan agreement executed by him and such portion constitutes less than one-half of such cost, one-half credit will be given. If such portion constitutes one-half or more of such cost, no credit for meeting the soil-building goal will be given for such practices.

Trees purchased from a Clark-McNary Cooperative State Nursery shall not be deemed to be paid for in whole or in part by a State or Federal agency.

GENERAL SPECIFICATIONS

(a) Seed used for or in connection with any seeding practice must be good seed having the following qualities:

(1) Free from noxious weed seed.

(2) Relatively free from inferior strains and varieties.

(3) Relatively free from all weed seed.

(4) Adapted to the locality.

(5) Average or better viability, provided that if seed is of less than average viability, the amount of seed per acre shall be increased proportionately. (b) All soil-building practices carried out on the farm, including minimum seeding rates and methods of seeding, unless otherwise

specified under the individual practice, shall be such as are determined by the county committee to be in accordance with the generally accepted good farming practice in the county and community.

(c) Any seeding practice involving the use of alfalfa seed, either alone or in mixtures, requires that only adapted alfalfa seed be used. (d) The term "good stand" when used in connection with seeding practices shall mean a stand which would produce a normal crop without any reseeding.

(e) The soil-building practices listed below are applicable in all counties in Arizona when carried out on cropland and noncropland except when otherwise specified.

SCHEDULE OF SOIL-BUILDING PRACTICES

Practice A-1. APPLICATION OF 300 POUNDS OF 16-PERCENT SUPERPHOSPHATE (OR ITS EQUIVALENT) TO, OR IN CONNECTION WITH THE SEEDING OF, PERENNIAL OR BIENNIAL LEGUMES, PERENNIAL GRASSES, WINTER LEGUMES, LESPEDEZA, CROTALARIA, NATAL GRASS, OR PERMANENT PASTURE. Rate of credit-Application of 300 pounds of 16percent superphosphate (or its equivalent-48 pounds available POs) equals 1 unit.

Specifications. (a) This practice is applicable to irrigated land in all counties. (b) Application of 48 pounds of available P2Os (excluding rock phosphate or basic slag) to or in connection with the seeding of perennial or biennial legumes, perennial grasses, or winter legumes.

(c) No credit will be allowed for this practice when the application is made to or in connection with a soil-depleting crop.

Practices A-2, A-3, A-4, A-5, A-6, A-7, A-8, A-9, A-10, A-11, A-12, and A-13. Not applicable.

Practice A-14.-CONSTRUCTION OF 300 LINEAR FEET OF DITCHING, WITH A DEPTH OF 1 FOOT AND A TOP WIDTH OF 4 FEET, FOR THE DIVERSION AND SPREADING OF FLOOD WATER OR WELL WATER ON PASTURE

LAND, OR HAY LAND. Rate of credit.-300 linear feet of ditching equal 1 unit.

Specifications.-(a) The ditch should be designed for nonerosive velocities and the grade should not exceed 4 to 5 inches per 100 feet of length.

(b) Ditches shall have a cross section measurement of not less than 4 square feet.

(c) The ditch shall have ample capacity to carry the diverted water and shall have an adequate outlet at the discharge end. If openings are made along the length of the ditch, where the density of natural sod is not sufficient to spread water without erosion, riprap or woven wire spreaders shall be used for protection. (d) Payment will not be made for this practice if less than 300 linear feet of ditching are constructed.

(e) Ditches may be constructed for the division and spreading of flood waters on pasture land or hay land. Ditches for carrying well water will be applicable only in connection with Water Facilities Projects under the Water Facilities Act.

Practice B-1. SEEDING BIENNIAL LEGUMES, PERENNIAL LEGUMES, OR PERENNIAL GRASSES. Rate of credit-1 acre equals 1 unit.

Specifications. (a) This practice is applicable to cropland and orchard land. (b) Biennial sweetclover and perennial ryegrass are applicable to all counties. The minimum seeding rate for biennial sweetclover is 8 pounds per acre on nonirrigated land and 12 pounds per acre on irrigated land.

(c) Bermuda grass, seeded at the rate of not less than 10 pounds per acre, is applicable to Cochise, Graham, Greenlee, Maricopa, Mohave, Pima, Pinal, and Yuma Counties.

(d) Bome grass is applicable to Apache, Coconino, Gila, Navajo, and Yavapai Counties.

Practice B-2. SEEDING WINTER LEGUMES. Rate of credit-1 acre equals 1 unit.

Specifications.—(a) This practice is applicable only in the following counties: Graham, Greenlee, Maricopa, Pima, Pinal, Yuma, Cochise, and Santa Cruz. (b) Winter legumes consist of winter vetch and Austrian field peas, sour clover, fenugreek, and bur clover.

(c) Seeding shall be performed during January and February, or between August 16 and December 31.

Practice B-3. GREEN MANURE CROPS AND COVER CROPS OF WHICH A GOOD STAND AND GOOD GROWTH IS (1) PLOWED or disced UNDER ON LAND NOT SUBJECT TO EROSION, OR IF SUBJECT TO EROSION, SUCH CROP IS FOLLOWED BY A WINTER COVER CROP, OR (2) LEFT ON LAND SUBJECT TO EROSION OR IN ORCHARDS OR ON COMMERCIAL VEGETABLE

LAND. Rate of credit-1 acre equals 1 unit.

Specifications. (a) Crops applicable include annual legumes (except annual lespedeza), small grain, Sudan grass, mustard, and giant Amaranthus.

(b) To be acceptable as green manure crops, it is required that there be a good stand and a good growth of such crops.

(c) A good stand and good growth of the crops listed above may be left on land in orchards as cover crops if not harvested for grain, hay, or pasture.

(d) Any crop for which credit is given in 1939 under any other practice shall not be eligible for credit under this practice.

Practice B-4. Not applicable.

Practice C-1. SEEDING ALFALFA. 2 units.

Rate of credit-1 acre equals

Specifications. (a) This practice is limited to cropland or commercial orchards. Practice C-2, C-3, C-4, D-1, E-1, and F-1. Not applicable. Practice F-2. CONTROL OF SERIOUSLY INFESTED PLOTS OF PERENNIAL NOXIOUS WEEDS, DESIGNATED BY THE AGRICULTURAL ADJUSTMENT ADMINISTRATION, ON CROPLAND, ORCHARD LAND, OR NONCROP PASTURE LAND, IN ORGANIZED WEED CONTROL DISTRICTS, IN ACCORDANCE WITH

GOOD CHEMICAL OR TILLAGE METHODS. Rate of credit-1 acre equals 5 units.

Specifications.-Note. An organized weed control district is an area defined under State statute as an area wherein designated officials are authorized to require effective weed control practices to be instituted on all land on which such practices are necessary to control or eradicate noxious weeds in such area, or any other organized area comprising all or part of a county wherein the State committee finds that effective weed control practices will be instituted on all land on which such practices are necessary to control or eradicate noxious weeds in such (a) Treatment by chemicals shall be in accordance with methods adopted by weed control district.

area.

(b) Treatment by periodic cultivation shall consist of cultivating the acreage from June 1 to September 1 often enough to prevent all growth above the surface of the soil.

(c) Approval of each area is required by the county committee before June 1. (d) Credit will be given for the control of only the following noxious weeds in the areas designated: Nutgrass, bindweed, camel's thorn, perennial ragweed, and Russian knapweed in all counties; and Johnson grass in Cochise, Graham, Greenlee, Maricopa, Pima, Pinal, Santa Cruz, and Yuma Counties only.

Practice F-3, and G-1. Not applicable.

Practice G-2. RENOVATION OF PERENNIAL LEGUMES AND MIXTURES OF PERENNIAL GRASSES AND LEGUMES. Rate of credit-2 acres equal

1 unit.

Specifications. (a) Notice of intention to carry out practice must be filed with county committee prior to carrying out the practice.

(b) Renovation for the restoring of deteriorated stands, to be performed during dormant period or between crops, to a depth of not less than 4 inches. Reseeding of weak stands is required.

125566-39-J-2

(c) One-year old alfalfa and/or mixtures of perennial grasses and perennial legumes, renovation to a minimum depth of 2 inches shall qualify, providing the area is reseeded at a rate of not less than 4 pounds per acre. Irrigation must not follow this practice until all dislodged weed roots have been exposed long enough to die.

(d) Renovation of alfalfa to restore stands that are being stunted because of poor water penetration. The soil shall be subsoiled or chiseled to a depth of at least 12 inches, at intervals of not to exceed 4 feet.

Practice G-3, G-4, H-1, H-2, H-3, H-4, H-5, 1-1, J-1, J-2, J-3, K-1, K-2, K-3, and K-4. Not applicable.

Section 8. PAYMENT FOR FULL PERFORMANCE

Payment will be made with respect to any farm for not exceeding soil-depleting acreage allotments, and for achieving the soil-building goal in an amount which shall be the sum of the following:

(a) Cotton.-2 cents per pound of the normal yield per acre of cotton for the farm for each acre in the cotton acreage allotment; or, if the acreage planted to cotton is less than 80 percent of the cotton acreage allotment, payment will be computed on the normal yield of an acreage equal to 125 percent of the acreage planted to cotton unless the county committee finds that failure to plant 80 percent of such cotton acreage allotment was due to flood or drought.

(b) Not applicable.

(c) Wheat.-17 cents per bushel of the normal yield per acre of wheat for the farm for each acre in the wheat acreage allotment; or, if the acreage planted to wheat is less than 80 percent of the wheat acreage allotment, payment will be computed on the normal yield of an acreage equal to 125 percent of the acreage planted to wheat unless the county committee finds that failure to plant 80 percent of such wheat acreage allotment was due to flood or drought.

(d), (e), (f), and (g) Not applicable.

(h) Commercial vegetables.-$1.50 for each acre in the commercial vegetable acreage allotment established for the farm; or, if the acreage of land planted to commercial vegetables is less than 80 percent of the commercial vegetable acreage allotment payment will be computed on an acreage equal to 125 percent of the acreage of land planted to commercial vegetables unless the county committee finds that failure to plant 80 percent of such commercial vegetable acreage allotment was due to flood or drought.

(i) and (j) Not applicable.

(k) Payments in connection with soil-building practices.-(1) Not applicable.

(2) $2.00 per acre of commercial orchards on the farm January 1, 1939.

(3) (i) Not applicable.

(ii) 5 cents per acre of noncrop open pasture.

(iii) and (iv) Not applicable.

(4) 70 cents per acre of cropland in excess of the sum of (1) the acreages used in computing payments with respect to special-crop acreage allotments established for the farm, and (2) the acreage of sugar beets for sugar planted on the farm in 1939.

(5) and (6) Not applicable.