Effect of Cropping Systems on Soil Physical Properties and Irrigation Requirements

Carreker, John R.; Bertrand, A. R.; Elkins, Charles B.; Adams, William E.

doi:10.2134/agronj1968.00021962006000030016x

Cited by 7 publications

(4 citation statements)

References 3 publications

(3 reference statements)

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“…Linear regression equations for corn yields and rainfall showed that yields of continuous corn and corn in rotation were increased 113. 6 ..,. 119.5 kg;'ha, respectively, for each centimeter of rainfall during June and July.…”

Section: Resultsmentioning

confidence: 99%

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Adams¹,

Morris²,

Dawson

1970

Agronomy Journal

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A field experiment was conducted on Cecil sandy loam over a 7‐year period to determine the effect of cropping systems and nitrogen levels on corn (Zea mays L.) yields. Green manure crops and perennial grass or legume sods increased corn yields regardless of the level of N fertilization. Removal of corn stalks did not decrease corn yields when corn was grown continuously with or without annual green manure crops. Alfalfa (Medicago sativa L.) and tall fescue (Festuca arundinacea Schreb.) were equally effective in sod‐based rotations for corn. Coastal bermudagrass (Cynodon dactylon (L.) Pers.) was slightly less effective in sod‐based rotations because it competed with corn during the growing season. The beneficial effect of sod on corn yields lasted for at least 4 years after the sod was turned.

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Section: Resultsmentioning

confidence: 99%

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Adams¹,

Morris²,

Dawson

1970

Agronomy Journal

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“…As shown in Table 2, the amount of accumulated organic residue in the grass soil could supply appreciable microbial energy. Non-symbiotic N-fixing bacteria were shown to be present in the soil and on leaves of fescuegrass 3 • Fescuegrass root exudates, however, were found to be negligible from young fescue plants.…”

Section: Discussionmentioning

confidence: 94%

“…Carreker et al (3) conducted extensive crop rotation studies adjacent to this experiment and found that increasing the sod component in the cropping system increased stability of aggregates, decreased crust strength, and increased infiltration rates.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen Accumulation in Fescuegrass Sod¹

Giddens¹,

Adams²,

Dawson

1971

Agronomy Journal

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Tall fescuegrass (Festuca arundinacea) was seeded in Cecil sandy loam for 5 years in separate plots. Established fescuegrass plots were plowed and planted to corn during the same period. In 1968 both areas were plowed and planted uniformly to corn (Zea mays). Total N, carbon, organic residues, bulk density, and aggregation were determined on the soils of both areas. Soils from both areas were planted to sudax in the greenhouse. Yields increased from 2,728 kg/ha for continuous corn to 5,940 kg/ha for corn following 5 years of fescuegrass. After destruction of sod, corn yield decreased in 5 years from 5,018 kg/ha to 3,205 kg/ha. Sudax yields showed similar trends. Topsoil N increased from .047% to .088% as result of grass, and decreased from .078% to .054% as result of turning the grass. Soil carbon showed similar relationships. Soil bulk density and aggregation were not significantly affected by treatments. It was concluded that nonsymbiotic N fixation accounted for part of the nitrogen increase in fescuegrass sod and nitrogen conservation the remainder.

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“…could well fail to establish a difference. Carreker et al (1968) sampled at only one depth in the topsoil and failure to show a difference between soil under grass and soil under corn may have been caused by this.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the available-water capacities of Patumahoe clay loam under pasture and cultivation

Gradwell¹

1987

New Zealand Journal of Agricultural Research

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The amount of water that topsoils of the Patumahoe clay loam can retain at tensions between 0.2 and 15.0 bars (available-water capacity) has been determined for four sites under pasture and eleven sites in market gardens. The mean available-water capacity of the 2-12 cm depth was 180/0 of soil volume under pasture and 11 % in gardens; for the 12-22 cm depth the mean available-water capacity was 10% under pasture and 12% in gardens. The difference between pasture and gardens was highly significant for the upper topsoil but not significant for the lower topsoil; the available-water capacity varied significantly with depth under pasture but not in gardens. The large available-water capacities near the surface under pasture derived from exceptionally high values of field capacity which may have been related to high contents of organic carbon in the soil. Any advantage of the pasture over the cultivated sites in the water-supplying power of the topsoil as a whole was of doubtful significance.

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Effect of Cropping Systems on Soil Physical Properties and Irrigation Requirements

Cited by 7 publications

References 3 publications

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Nitrogen Accumulation in Fescuegrass Sod¹

Comparison of the available-water capacities of Patumahoe clay loam under pasture and cultivation

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Effect of Cropping Systems on Soil Physical Properties and Irrigation Requirements

Cited by 7 publications

References 3 publications

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region1

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region1

Nitrogen Accumulation in Fescuegrass Sod1

Comparison of the available-water capacities of Patumahoe clay loam under pasture and cultivation

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Product

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Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Effect of Cropping Systems and Nitrogen Levels on Corn (Zea mays) Yields in the Southern Piedmont Region¹

Nitrogen Accumulation in Fescuegrass Sod¹