ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

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The influence of water supply on the growth and phosphorus uptake of italian ryegrass and white clover in pot culture (1960)

Low, A. J. ; Piper, F. J.

Springer

Plant and soil 13 (1960), S. 242-252

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ISSN: 1573-5036

Source: Springer Online Journal Archives 1860-2000

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: Summary White clover appears to be much more sensitive, in terms of dry-matter production, to variations of soil moisture than Italian ryegrass. The results show that a variation of 5 in the percentage of water (moist-soil basis) on either side of the field-capacity figure can cause a statistically significant effect in the dry weight of Italian ryegrass in pot culture, although a slightly larger percentage may be necessary for white clover to be affected as standard errors in pot culture with this crop tend to be higher. With an adequate supply of soil phosphorus the greater the amount of readily available water the greater the percentage of P2O5 in Italian ryegrass; with white clover it rises to a maximum then falls off under very wet Statistically significant differences in percentage P2O5 for both crops can be obtained whit those variations in the water supply which caused significant differences in dry weight.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01677505

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The composition of the leachate through cropped and uncropped soils in lysimeters compared with that of the rain (1970)

Low, A. J. ; Armitage, E. R.

Springer

Plant and soil 33 (1970), S. 393-411

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ISSN: 1573-5036

Source: Springer Online Journal Archives 1860-2000

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: Summary The composition of the leachate from undisturbed monolith lysimeters cropped with white clover or meadow fescue or maintained bare was compared with that of the rain falling on them. No nitrogen fertilizer was applied only an initial dressing of phosphorus and potassium. The grass received much more nitrogen from the rain than it lost by leaching whereas the clover lost more than it received. Most of the leached nitrogen was NO3-N - 92 per cent on the bare soil and 90 per cent on the clover. About 27lb nitrogen per acre (30 kg/ha) per year was drained from the actively growing clover sward rising to about 117lb N/acre/year (131 kg/ha) when the clover died or was removed. Only 2.3lb/ac (2.5 kg/ha) was drained from the actively growing grass sward. It was estimated that the clover fixed at least 270lb N/ac/year (303 kg/ha/year. The rates of leaching of potassium from a grass sward was about 1.7lb/ac/year (1.9 kg/ha) and 0.8 lb (0.9 kg) phosphorus. The quantities were similar for clover. The grass received from the rain more phosphorus and potassium than was leached but only 60 per cent of the calcium and 13 per cent of the magnesium, similar results being obtained with white clover. During the year of establishment of the grass sward there was evidence of loss of gaseous nitrogen (elemental and/or compound) from the soil: subsequently the nitrogen content of the soil slowly increased. Calcium loss from the bare soil with an average rainfall of 26″ (650 mm) was about 100 lb Ca/ac/year (112 kg/ha).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01378230

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Paper (German National Licenses)

Fulltext

3

Electronic Resource

The composition of the leachate through cropped and uncropped soils in lysimeters compared with that of the rain (1970)

Low, A. J. ; Armitage, E. R.

Springer

Plant and soil 33 (1970), S. 393-411

add to mindlist on the mindlist

Details

ISSN: 1573-5036

Source: Springer Online Journal Archives 1860-2000

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: Summary The composition of the leachate from undisturbed monolith lysimeters cropped with white clover or meadow fescue or maintained bare was compared with that of the rain falling on them. No nitrogen fertilizer was applied only an initial dressing of phosphorus and potassium. The grass received much more nitrogen from the rain than it lost by leaching whereas the clover lost more than it received. Most of the leached nitrogen was NO3-N - 92 per cent on the bare soil and 90 per cent on the clover. About 27lb nitrogen per acre (30 kg/ha) per year was drained from the actively growing clover sward rising to about 117lb N/acre/year (131 kg/ha) when the clover died or was removed. Only 2.3lb/ac (2.5 kg/ha) was drained from the actively growing grass sward. It was estimated that the clover fixed at least 270lb N/ac/year (303 kg/ha/year. The rates of leaching of potassium from a grass sward was about 1.7lb/ac/year (1.9 kg/ha) and 0.8 lb (0.9 kg) phosphorus. The quantities were similar for clover. The grass received from the rain more phosphorus and potassium than was leached but only 60 per cent of the calcium and 13 per cent of the magnesium, similar results being obtained with white clover. During the year of establishment of the grass sward there was evidence of loss of gaseous nitrogen (elemental and/or compound) from the soil: subsequently the nitrogen content of the soil slowly increased. Calcium loss from the bare soil with an average rainfall of 26″ (650 mm) was about 100 lb Ca/ac/year (112 kg/ha).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01378230

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