California Agriculture
California Agriculture
California Agriculture
University of California
California Agriculture

Archive

January 1977
Volume 31, Number 1

Peer-reviewed research and review articles

Sorghum seeding rates for best yields
by George F. Worker
| Full text HTML  | PDF  
Low or high seeding rates can cause problems in grain sorghum crops and reduce yields. Studies show that seeding at about 16 pounds per acre gives the highest grain yields in the Imperial Valley.
Abstract Not Available – First paragraph follows: Maximum grain yields are attained only by uniform sorghum stands that allow uniform flowering and ripening. Inadequate stands resulting from low seeding or other causes produce secondary tillers from buds near the base of the plant; secondary tillers mature later than the main head, delaying harvest. Stands that are too heavy can result in lower yields, small kernels, and increased lodging.
Asian pears in California
by William H. Griggs, Ben T. Iwakiri
| Full text HTML  | PDF  
California now has only a few hundred acres of Asian pears in commercial orchards. Demand for these crisp, juicy pears has increased in recent years, and planting the best ommercial varieties should result in further increases.
California now has only a few hundred acres of Asian pears in commercial orchards. Demand for these crisp, juicy pears has increased in recent years, and planting the best commercial varieties should result in further increases.
Measuring nitrogen loss from denitrification
by Dennis E. Rolston
| Full text HTML  | PDF  
The rate of denitrification was greater from nitrate than from ammonium fertilizer. Approximately 45 percent of the added nitrogen was lost as nitrous oxide and molecular nitrogen gases under soil-moisture conditions near saturation.
Abstract Not Available – First paragraph follows: Denitrification is the biological reduction of nitrate and nitrite to volatile gases, usually nitrous oxide or molecular nitrogen, or both. Denitrification is accomplished by bacteria capable of using nitrate in place of oxygen. Under aerobic conditions the bacteria oxidize carbohydrates to carbon dioxide and water. In the absence of oxygen these bacteria oxidize carbohydrates in nitrate respiration, yielding carbon dioxide, water, and the volatile gases, nitrous oxide and molecular nitrogen.
Protein to feed a hungry world
by Benjamin H. Beard, Milton D. Miller
| Full text HTML  | PDF  
The basic cause of famines has been social mores and economically induced, unequal food distribution, according to speakers at a seminar series on protein.
The basic cause of famines has been social mores and economically induced, unequal food distribution, according to speakers at a seminar series on protein.
Search continues for control of almond hull rot
by L. Todd Browne, Joseph M. Ogawa, Bashier Gashaira
| Full text HTML  | PDF  
Almond hull rot, caused by two genera of fungi, can result in severe dieback on vigorous, productive trees. Research is under way to find effective measures for controlling the disease.
Almond hull rot, caused by two genera of fungi, can result in severe dieback on vigorous, productive trees. Research is under way to find effective measures for controlling the disease.
Laundering methods affect fabric wear
by Mary Ann Morris, Harriet H. Prato
| Full text HTML  | PDF  
Fabric abrasion can be minimized by not overdrying garments, by turning garments inside out during washing and tumble drying, and by using the lowest agitation speed or shortest wash time possible.
Abstract Not Available – First paragraph follows: As much as half of the wear on fabrics during use may occur in laundering. Consequently, it is important to control the laundry process so that good appearance and adequate soil removal are balanced with minimum abrasive damage. Abrasion may occur both in washing and in drying, and studies have shown that water quality, detergent type, and drying conditions are important variables affecting the amount of damage. Figure 1 shows varying amounts of abrasion that can occur along a fabric crease after repeated Iaunderings.

News and opinion

Let's open agriculture's black box
by J. B. Kendrick
Full text HTML  | PDF  

General Information

The new look of 4-H
by Little Val, Thayer Horn
Full text HTML  | PDF  
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January 1977
Volume 31, Number 1

Peer-reviewed research and review articles

Sorghum seeding rates for best yields
by George F. Worker
| Full text HTML  | PDF  
Low or high seeding rates can cause problems in grain sorghum crops and reduce yields. Studies show that seeding at about 16 pounds per acre gives the highest grain yields in the Imperial Valley.
Abstract Not Available – First paragraph follows: Maximum grain yields are attained only by uniform sorghum stands that allow uniform flowering and ripening. Inadequate stands resulting from low seeding or other causes produce secondary tillers from buds near the base of the plant; secondary tillers mature later than the main head, delaying harvest. Stands that are too heavy can result in lower yields, small kernels, and increased lodging.
Asian pears in California
by William H. Griggs, Ben T. Iwakiri
| Full text HTML  | PDF  
California now has only a few hundred acres of Asian pears in commercial orchards. Demand for these crisp, juicy pears has increased in recent years, and planting the best ommercial varieties should result in further increases.
California now has only a few hundred acres of Asian pears in commercial orchards. Demand for these crisp, juicy pears has increased in recent years, and planting the best commercial varieties should result in further increases.
Measuring nitrogen loss from denitrification
by Dennis E. Rolston
| Full text HTML  | PDF  
The rate of denitrification was greater from nitrate than from ammonium fertilizer. Approximately 45 percent of the added nitrogen was lost as nitrous oxide and molecular nitrogen gases under soil-moisture conditions near saturation.
Abstract Not Available – First paragraph follows: Denitrification is the biological reduction of nitrate and nitrite to volatile gases, usually nitrous oxide or molecular nitrogen, or both. Denitrification is accomplished by bacteria capable of using nitrate in place of oxygen. Under aerobic conditions the bacteria oxidize carbohydrates to carbon dioxide and water. In the absence of oxygen these bacteria oxidize carbohydrates in nitrate respiration, yielding carbon dioxide, water, and the volatile gases, nitrous oxide and molecular nitrogen.
Protein to feed a hungry world
by Benjamin H. Beard, Milton D. Miller
| Full text HTML  | PDF  
The basic cause of famines has been social mores and economically induced, unequal food distribution, according to speakers at a seminar series on protein.
The basic cause of famines has been social mores and economically induced, unequal food distribution, according to speakers at a seminar series on protein.
Search continues for control of almond hull rot
by L. Todd Browne, Joseph M. Ogawa, Bashier Gashaira
| Full text HTML  | PDF  
Almond hull rot, caused by two genera of fungi, can result in severe dieback on vigorous, productive trees. Research is under way to find effective measures for controlling the disease.
Almond hull rot, caused by two genera of fungi, can result in severe dieback on vigorous, productive trees. Research is under way to find effective measures for controlling the disease.
Laundering methods affect fabric wear
by Mary Ann Morris, Harriet H. Prato
| Full text HTML  | PDF  
Fabric abrasion can be minimized by not overdrying garments, by turning garments inside out during washing and tumble drying, and by using the lowest agitation speed or shortest wash time possible.
Abstract Not Available – First paragraph follows: As much as half of the wear on fabrics during use may occur in laundering. Consequently, it is important to control the laundry process so that good appearance and adequate soil removal are balanced with minimum abrasive damage. Abrasion may occur both in washing and in drying, and studies have shown that water quality, detergent type, and drying conditions are important variables affecting the amount of damage. Figure 1 shows varying amounts of abrasion that can occur along a fabric crease after repeated Iaunderings.

News and opinion

Let's open agriculture's black box
by J. B. Kendrick
Full text HTML  | PDF  

General Information

The new look of 4-H
by Little Val, Thayer Horn
Full text HTML  | PDF  

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