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

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

doi:10.1007/bf01677505

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…The average was 50 per cent for bare sha]low solls in W. Europe where the rainfall averaged 700 mm (27.6 in) and [20][21][22][23][24][25][26][27][28][29][30] per cent where cropped. At Jealott's Hill (average rainfall 650 mm (25.6 in)) it was 50% for the bare and 28 per cent for the cropped for the period 3/9/51 to 13/1/56: the same order as elsewhere.…”

Section: Discussion P a R T Zmentioning

confidence: 99%

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

Low¹,

Armitage²

1970

Plant Soil

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SUMMARYThe composition of the leachate from undisturbed monolith lysimeters cropped with white clover or meadow fescue or maintained bare was compared with t h a t of the rain falling on rhein. No nitrogen fertilizer was applied only an initial dressing of phosphorus and potassium. The grass received rauch more nitrogen from the rain than it lost by leaching whereas the clover lost more t h a n it received. Most of the leached Ilitrogen was N O s -N -92 per cent on the bare soil and 90 per cent on the clover. A b o u t 271b nitrogen per acre (30 kg/ha) per year was drained from the actively growing clover sward risilig to about 1171b N/acre/year (131 kg/ha) when the clover died or was removed. Only 2.31b/ac (2.5 kg/ha) was drained from the actively growing grass sward. I t was estimated t h a t the clover fixed at least 2701b N/ac/year (303 kg/ha/year. The rates of leaching of potassium from a grass sward was about 1.7 lb/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 celit 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 alid/or compoulld) from the soll: subsequently the nitrogen content of the soil slowly increased. Calcium loss from the bare soil with all average rainfall of 26" (650 mm) was about 100 Ib Ca/ac/year ( 112 kg/ha).

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Section: Discussion P a R T Zmentioning

confidence: 99%

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

Low¹,

Armitage²

1970

Plant Soil

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“…During this period of growth the leach treatment resulted in partial waterlogging of the soil, particularly on the PI pots, and this appeared to be the cause of the depression in yield on these pots. Williams & Simpson (1965) and Low & Piper (1960) have shown that waterlogging can reduce the yield of clover in pots, so yields from the leach treatment would probably have been higher if the waterlogging had not occurred. The addition of sand to the soil did, in fact, result in higher yields at all rates of phosphorus, probably as a result of better aeration in the pots.…”

Section: P4mentioning

confidence: 99%

“…Stanhill (1957) pointed out the difficulty in interpretation of much of the earlier work on soil moisture effects, since moisture was not kept at a constant level throughout the experimental period. Since then, work in which moisture levels have been more carefully controlled has shown that an increase in moisture supply increases phosphorus absorption by plants, provided the soil does not become waterlogged (Kilmer et al 1960;Low & Piper 1960;Olsen et al 1961). …”

Section: Introductionmentioning

confidence: 99%

Factors affecting growth and response of white clover in pots to applied phosphorus

Sherrell¹,

Saunders²

1974

New Zealand Journal of Agricultural Research

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The effect of three levels of soil moisture on growth and response of white clover in pots to applied phosphorus was studied with soils of low and high phosphorus status.On both soils highest yields were obtained· at the highest level of moisture, maintained by daily watering until leaching occurred. Maintenance of the pots at a soil moisture level of estimated "field capacity" resulted in lower yields at all rates of applied phosphorus. The differences between yields due to watering treatments were greatest at the nil and low rates of applied phosphorus on the soil of high phosphorus status, and at the high rates of applied phosphorus on the soil of low phosphorus status.The leaching method of watering resulted in responses to phosphorus in the pots similar to those expected in the field on both soils. It also produced the highest phosphorus content in the plants on both soils and prevented the accumulation of soluble salts on the surface of the pots, although not completely on one of the soils.

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WATER DEFICITS AND NUTRIENT AVAILABILITY**Contribution from the Northern Plains Branch, Soil and Water Conservation Research Division, Agricultural Research Service, USDA, Fort Collins, Colorado.

Viets¹

1972

Plant Responses and Control of Water Balance

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

Cited by 8 publications

References 7 publications

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

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

Factors affecting growth and response of white clover in pots to applied phosphorus

WATER DEFICITS AND NUTRIENT AVAILABILITY**Contribution from the Northern Plains Branch, Soil and Water Conservation Research Division, Agricultural Research Service, USDA, Fort Collins, Colorado.

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