Soil Moisture Relationships during Crop Production

Reimann, E. G.; Doren, C. A. Van; Stauffer, R. S.

doi:10.2136/sssaj1946.03615995001000c00008x

Cited by 11 publications

(4 citation statements)

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“…In 1942 soil temperatures 1 inch below the surface were 15° to 20° F higher on the severely than on the moderately grazed plot. At Urbana, Reimann and others (5) found that evaporation losses in a cornfield averaged 0.05 inches daily during the summer. Approximate number of clays during which resistance of blocks at 3-inch depths exceeded 10,000 ohms is shown in Table 2.…”

Section: Soil Moisture Availability Without Irrigationmentioning

confidence: 96%

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹

McKibben¹,

Gard²,

Doren³

et al. 1950

Agronomy Journal

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Section: Soil Moisture Availability Without Irrigationmentioning

confidence: 96%

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹

McKibben¹,

Gard²,

Doren³

et al. 1950

Agronomy Journal

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“…Reimann, Van Doren and Stauffer ( 1946 ) reported an instance where by early August Illinois corn had exhausted all available water in the upper meter of soil, but was growing well on water absorbed from below one meter. McWilliam and Kramer (1968) found that plants of Phalaris tuberosa L. survived when the water potential in the top meter of soil was below -15 bars, but died when the roots were cut at a depth of one meter.…”

Section: Importance Of Root Systemsmentioning

confidence: 99%

How crops grow; a century later

Day¹,

Johnson²

1969

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Bulletin 708The Odds He Struggled Against Johnson found the going rough. It was not easy in the eighteen fifties to sell science to society, "book learning" to farmers and legislators.He struggled under enormous odds to give life and strength to his proposal to put science to work. His salary came from Yale College. This was hardly a farm school. In 1960, Scientific American published this excerpt from its issue of a century earlier: "To see Yale College stepping out from among the mists of antiquity and the graves of dead languages, and 'taking up the shovel and the hoe,' is certainly one of the signs of the times. She made her debut on this new stage on the 1st day of February having secured the services of 25 leading agriculturists to sustain her in this first effort." Johnson helped persuade Yale College to do this, but he found it hard to keep Yale College convinced on science, to say nothing of agriculture.Having more or less convinced Yale College, he then had to convince hard headed farmers and legislators. One farmer testified at the 1873 hearing on the bill in the Connecticut General Assembly, to establish the Experiment Station. "I tell you go slow," he said, "You are hatching an egg that will certainly make this state a lot of trouble." One could hardly blame the legislators for refusing to pass the bill the first time it was introduced.Despite such formidable obstacles at Yale and in conservative Connecticut, Johnson did succeed. He did establish the concept that science could be made useful to society, and that society would pay for it.Fifty-three experiment stations in America proclaim it today and so do the distinguished laboratories of the Bell System, General Electric, and others. 4 Connecticut Experiment Station Bulletin 708 The Persuader Was Fertilizer Analysis Johnson was a very shrewd tactician. He knew that science would have to do something for society and do it fast, if his idea were not to die. Accordingly, his first effort was to analyze fertilizer to prevent fraud. Everybody knew that plants need fertilizer, but nobody could distinguish the value of Quinnipiac River mud from Peruvian guano in a bag labelled, "fertilizer." Johnson's chemistry could. America was as materialistic then as now and it could and did appreciate this help from science. It still does. Other Experiment Stations in the other states quickly followed Johnson's lead. For example, a report of the first 60 years of the North Carolina Station says, "In 1876 Dr. Battle [President of the University] made a visit to Connecticut where he conferred with . . . the Director of the first Agricultural Experiment Station in the United States. He returned with enthusiasm . . . and strongly advocated the establishment of a similar institution in North Carolina." They analyzed fertilizer, too, and thereby became the second legal entity to be called an Agricultural Experiment Station. Industry Followed Later It is interesting and probably significant that agriculture was the area where science was put to work first. It was 25 year...

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“…This deficit, in varying degrees, may be offset by soil profile moisture accumulated during the nongrowing season. Reimann, Van Doren, and Stauffer (8) reported moisture withdrawal by corn to a depth of 7Y 2 feet at the Agronomy South Farm at Urbana in 1944, a growing season of subnormal precipitation.…”

Section: Use Of Water By Cornmentioning

confidence: 99%

Influence of Moisture Regime on Optimum Nitrogen Level and Plant Population for Corn: A Game Theoretic Analysis

Swanson¹,

Tyner²

1965

Agronomy Journal

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Synopsis The results of an experiment giving the effect on corn yield of nitrogen application, plant population, and available soil moisture during a critical 17‐day period are used to construct yields for each of 58 seasons. These yields are used to estimate payoff matrices which, in turn, form the basis for obtaining the optimum nitrogen level‐plant population combinations specified by each of four game theory models.

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Soil Moisture Relationships during Crop Production

Cited by 11 publications

References 0 publications

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹

How crops grow; a century later

Influence of Moisture Regime on Optimum Nitrogen Level and Plant Population for Corn: A Game Theoretic Analysis

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Soil Moisture Relationships during Crop Production

Cited by 11 publications

References 0 publications

Soil Moisture Availability in Irrigated and Nonirrigated Pastures1

Soil Moisture Availability in Irrigated and Nonirrigated Pastures1

How crops grow; a century later

Influence of Moisture Regime on Optimum Nitrogen Level and Plant Population for Corn: A Game Theoretic Analysis

Contact Info

Product

Resources

About

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹

Soil Moisture Availability in Irrigated and Nonirrigated Pastures¹