Life Sciences Commons^™

Bulletin No. 161 - Orchard Heating, Frank L. West, N. E. Edlefsen

UAES Bulletins

In the state of Utah scarcely a year passes without some damage being done to farm crops, either in the spring or the fall, because of the occurrence of killing frosts. For example, in the spring of 1916 the tops of the young beets were frozen, about one-fourth of the grain of the northern part of the state was frozen, the yield of the first crop of alfalfa was about half normal and 90 per cent of the fruit of the state was destroyed. During the month when fruit buds are in bloom, the report of the U. S. Weather …

Bulletin No. 160 - Important Factors In The Operation Of Irrigated Utah Farms, E. B. Brossard

UAES Bulletins

Two agricultural problems that are fundamental and of prime importance to the people of Utah are:

1. The development to maximum economic agricultural production of those farms now operated.

2. The agricultural development of the many thousands of acres of new land in the state.

A realization of the importance of these problems caused this investigation to be made. The purpose of it is as follows :

1. To determine what has been the experience of practical farmers, relative to the most profitable systems of farm management on irrigated Utah farms, and to suggest profitable future development of the existing …

Bulletin No. 158 - Soil Moisture Studies Under Dry-Farming, F. S. Harris, J. W. Jones

UAES Bulletins

Profitable cultivation of land under dry-farm conditions is dependent on the efficient use of precipitation. Soil fertility is not at present the limiting factor in crop production on most arid lands, but insufficient moisture to make available the fertility of these dry-lands is not only a limiting factor, but in most cases the controlling factor in crop production. The rainfall in the principal dry-farming areas of Utah varies from 12 to 15 inches a year. During different years it may range from 10 to 22 inches; therefore the best use must be made of the water that falls.

Bulletin No. 159 - Soil Moisture Studies Under Irrigation, F. S. Harris, A. F. Brakcen

UAES Bulletins

Under normal precipitation the variety of crops which can be successfully grown in the West is limited. Of necessity, irrigation was practised and with it came many complex problems. The water requirements of different crops, the water-holding capacity of soils, the movement of soil moisture, and numerous other related problems have given themselves up for investigational work.

Bulletin No. 157 - The Irrigation Of Potatoes, F. S. Harris

UAES Bulletins

Very few field crops yield as large returns to the acre as do potatoes during favorable years, and but few crops are as greatly affected in quality and yield by soil and seasonal conditions. The potato is particularly sensitive to soil moisture. For this reason yields under irrigation, where the moisture can be controlled, are usually much higher than where the moisture supply is irregular.

Bulletin No. 155 - The Beet Leafhopper And The Curly-Leaf Disease That It Transmits, E. D. Ball

UAES Bulletins

The beet leafhopper (Eutettix tenella Baker), is the most serious pest of the western sugar beet. It has through the disease it tranmits caused periodic losses to the western sugarbeet industry, amounting in the aggregate to many millions of dollars. Curly-leaf, the disease which this insect transmits, has in some of its worst outbreaks caused the abandonment of thousands of acres of beets in certain districts and a serious reduction in tonnage of the remainder, so that the total loss in a single area has several times passed the million-dollar mark. Besides these striking and widespread outbreaks which fortunately have …

Bulletin No. 150 - Further Studies Of The Nitric Nitrogen Content Of The Country Rock, Robert Stewart, William Peterson

UAES Bulletins

The progress of the work upon the general problem of the origin of the nitre spots in certain western soils has presented several different points of view. The fact that certain spots in western cultivated soils were rich in nitrates was first observed by Hilgard who attributed their accumulation to the more rapid nitrification of the organic matter of the soil in the warm arid climate of the west when the moisture limit was removed by irrigation.

Bulletin No. 156 - The Irrigation Of Sugar Beets, F. S. Harris

UAES Bulletins

The sugar beet crop during the last few years has come to be one of the most important sources of income for farmers in many sections of the country. The fact that the sale for the crop is certain at a price that is known in advance, in addition to the high type of farming that usually accompanies sugar beet raising, makes it probable that the sugar beet area will be considerably extended during the next few years.

Bulletin No. 154 - Irrigation And Manuring Studies Ii: The Effect Of Varying Quantities Of Irrigation Water And Manure On The Growth And Yield Of Corn, F. S. Harris, D. W. Pittman

UAES Bulletins

The present bulletin describes the results of an experiment on the irrigation and manuring of corn for the six years from 1911 to 1916, inclusive. The first three years' results of this experiment have already been published as Bulletin No. 133 of this Station. Besides the material discussed in that publication the present bulletin contains data on the composition of corn here presented for the first time.

Bulletin No. 153 - Selecting Dairy Bulls By Performance, W. E. Carroll

UAES Bulletins

Success in any system of breeding requires that each generation approach more nearly the object in view than has all preceding generations. Such progress is possible only when proper judgment is exercised and the best methods employed. In cattle breeding, for economic reasons, the bull is usually expected to contribute more to this general improvement than is the cow. To make this possible, the bull must therefore have been subjected to more rigid selection than the cow in order to eliminate more of his undesirable characters. If he contains few undesirable characters, from the breeding standpoint, he must of necessity …

Bulletin No. 151 - The Freezing Of Fruit Buds, F. L. West, N. E. Edlefsen

UAES Bulletins

There are many orchards in this country, so located that every few years a frost almost completely destroys the crop, either by killing the buds in the spring of the year, or by freezing the fruit in the fall, just before it is picked. Utah is no exception. A report made by the county agricultural agents of the state, shows that in the spring of 1916, 85 percent of the apples, 90 percent of the peaches, and 65 percent of the mall fruit were killed by frost with a corresponding amount of damage to field crops.

Bulletin No. 152 - The Effects Of Soil Moisture Content On Certain Factors In Wheat Production, F. S. Harris, Howard J. Maughan

UAES Bulletins

A knowledge of the intimate relations between the crop and the moisture of the soil is important to every farmer, and particularly to those in the arid parts of the world. While wheat is not an intensive crop and probably will not give as great returns to the acre for extra care as some other crops, it is well worth while to know how this crop responds to various treatments. The effect of high and low soil moisture during various stages in the growth of the crop is of particular interest. The work of other experimenters on this subject has …

Bulletin No. 149 - Breeding For Egg Production, Part Ii: Seasonal Distribution Of Egg Production With Especial Reference To "Winter" Egg Production, E. D. Ball, Byron Alder

UAES Bulletins

In this bulletin will be found a discussion of the seasonal distribution of egg production during first, second, and third, and later years of egg-laying of the same flocks of hens and a comparison of the distribution of production of high-laying and low-laying flocks in the same season, and different seasons as well as high-laying and low-laying individuals of the same flocks. These studies are based on six flocks of White Leghorn hens ranging from nine years to three years old and all descendants of a common flock. The methods of handling, feeding, and other details are discussed in previous …