Effects of lime on pasture production on soils in the North Island of New Zealand

Edmeades, D. C.; Pringle, Robert M.; Mansell, G. P.; Shannon, P. W.

doi:10.1080/00288233.1984.10430635

Cited by 20 publications

(16 citation statements)

References 12 publications

(6 reference statements)

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“…The current method for calculating lime requirements in pastoral soils (Edmeades et al 1984), based on the relationship between soil pH and response to lime, has severe limitations mainly because this relationship is rather poor (Sinclair 1995) and is derived empirically rather than from knowledge of the underlying mechanisms of acidification. The incorporation of a mechanistic model for predicting soil acidification rates into the current lime requirement method is expected to enhance the accuracy of this approach.…”

Section: Introductionmentioning

confidence: 99%

Soil acidification: A provisional model for New Zealand pastoral systems

Klein

Monaghan

Sinclair

1997

New Zealand Journal of Agricultural Research

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Soil acidification is a major problem internationally and occurs in pastoral systems as a result of nitrate leaching, nutrient transfer/removal, and soil organic matter (SOM) accumulation. Existing mechanistic models on soil acidification calculate acidification rates retrospectively, based on quantitative information on these acidifying processes. This paper presents an outline of a predictive soil acidification model that includes sub-models for estimating the extent of nitrate leaching, nutrient transfer/removal, and soil organic matter accumulation. The model was used to predict acidification rates in a fertiliser trial on sheepgrazed pastures, receiving superphosphate fertiliser for 35 years. The predicted rates ranged from 1.46 to 3.83 kmol c /ha.year, which was in moderate agreement with acid additions rates of 3.09 to 3.43 kmol c /ha.year as calculated from measured changes in soil pH and the pH buffer capacity (pHBC). Further development of the model is needed to include a SOM accumulation sub-model and to refine the various relationships within the existing sub-models. In addition, accurate information on the pHBC of soils is needed to convert soil pH change into acid addition rate, which will be crucial for validating the model.

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Section: Introductionmentioning

confidence: 99%

Soil acidification: A provisional model for New Zealand pastoral systems

Klein

Monaghan

Sinclair

1997

New Zealand Journal of Agricultural Research

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“…The yield response from both these grazing trials was higher than that reported from 38 mowing trials on North Island sedimentary soils (Edmeades et al 1984).…”

Section: No P Treatmentmentioning

confidence: 88%

“…Since soil pH in the high lime treatment was elevated above that required for optimum pasture growth (Edmeades et al 1984) for at least 10 years, then the yield response would have been expected to last longer than the first three years. In the first three years, the response in annual yield to high lime compared with no lime was from a response in grass yield.…”

Section: No P Treatmentmentioning

confidence: 98%

“…Previous research on yellow-grey earth (Duric palic) soils on the east coast of the North Island of New Zealand has measured good responses in pasture yield and vigour to lime (Bircham & Crouchley 1976;During 1984;Edmeades et al 1984). However, these reports gave little information on the mechanism(s) for the lime Downloaded by [UOV University of Oviedo] at 04:17 03 November 2014 New Zealand Journal of Agricultural Research, 1998, Vol.…”

Section: Introductionmentioning

confidence: 95%

“…However, the relative pasture yield response to lime measured by Bircham & Crouchley (1976) under grazing on a yellow-grey earth tended to be higher than the average response from mowing trials on yellowgrey earths (Edmeades et al 1984). The two most common techniques used in fertiliser trials are mowing cages within a grazed plot or small plot mowing trials.…”

Section: Introductionmentioning

confidence: 99%

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Effect of lime and form of superphosphate on productivity of dryland pastures

Morton

Wheeler²,

Smith³

1998

New Zealand Journal of Agricultural Research

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The effect of initial high lime (7500 kg ha-1), annual low lime (200 kg ha-1 yr -1 ), and no lime (all with 200 kg ha -1 yr -1 superphosphate) and dicalcic superphosphate (400 kg ha -1 yr -1 ) was compared over six years under sheep grazing and mowing on a low rainfall (800 mm), low pH (5.4), phosphorus (P) responsive (Olsen P 5) Matapiro yellow-grey earth (Duric palic) soil near Hastings, Hawke's Bay, New Zealand. High lime significantly increased pasture dry matter yield compared with other treatments in the first three years of the trial under both grazing and mowing. There were no differences in annual yield between the other treatments. The response to high lime in relation to no lime in the first 3 years was greater under grazing (21%) than mowing (12%). There was a greater A97032 number of legume plants per m 2 under mowing than grazing. The increase in pasture yield from high lime in the grazing trial was because of an increase in grass rather than legume yield. Legume yield averaged over all years was similar for the other treatments. There was no significant difference in the P concentration of grasses between treatments. Compared with low lime, high lime resulted in an initial increase of 0.9 pH units. Low lime and dicalcic superphosphate maintained the initial soil pH. The initial low Olsen P levels were only slightly increased by the low rates of P fertiliser used.After six years, P applications ceased on the dicalcic and low lime treatments, and the high lime plots were split into no P and P (20 kg ha -1 yr -1 ) applied. During the residual effect phase (Year 7-17), there was no difference in annual yield between no lime and high lime when P applications continued. For all treatments, where P was withheld, annual yield was lower than where P was maintained.Application of high initial rates of lime in this environment resulted in a short-lived (3 year) response in pasture yield despite a large increase in soil pH. At equivalent rates of P there was no difference in the effectiveness of single and dicalcic superphosphate. The liming effect of dicalcic was matched by applying the equivalent low rate of lime as a dry mix in addition to superphosphate.

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