# The Agriculture (Calculation of Value for Compensation) Regulations 1978, Chapter 5: Liming (including chalking) of land


(1) Subject to sub-paragraphs (2) and (3) below, the value shall be the reasonable cost of the lime applied to the land (including the cost of delivery and application) reduced by such amount as represents the value of calcium carbonate (CaCO3) or its equivalent calcium oxide (CaO) lost due to excess winter rainfall, such loss being estimated, by reference to mean annual excess winter rainfall and the rate of application of nitrogenous fertiliser to the land subsequent to the application of lime, in accordance with Table 1.
TABLE 1
Estimated annual loss of Calcium carbonate (CaCO3) and its equivalent Calcium oxide (CaO) due to excess winter rainfall and nitrogenous fertiliser application
Rate of application of nitrogenous fertiliser Kilogrammes per hectare annually
Up to 60
61 to 120
121 to 240
Over 240
Mean annual excess winter rainfall
Rate of application of lime (ground limestone or equivalent)
Annual lossKg/ha
Annual lossKg/ha
Annual lossKg/ha
Annual lossKg/ha
mm
tonnes per hectare
CaCO3
CaO
CaCO3
CaO
CaCO3
CaO
CaCO3
CaO
Up to 7.4
240
140
390
210
600
340
900
500
Up to 250
7.5 to 12.4
300
180
450
250
680
380
970
540
12.5 and over
400
230
550
300
770
430
1,070
600
Up to 7.4
490
280
640
360
870
490
1,170
650
260 to 500
7.5 to 12.4
680
380
820
460
1,040
590
1,340
750
12.5 and over
920
510
1,070
590
1,280
720
1,580
890
Up to 7.4
890
500
1,040
580
1,260
700
1,560
880
Over 500
7.5 to 12.4
1,230
690
1,370
770
1,590
890
1,900
1,050
12.5 and over
1,710
930
1,850
1,040
2,070
1,150
2,370
1,330
(2) For the purpose of sub-paragraph (1) above, the cost shall not be regarded as reasonable if it exceeds the estimated cost (including the cost of delivery and application) of the equivalent in ground limestone or chalk, whichever is the cheaper, of an application of 7.5 tonnes per hectare of calcium oxide unless a heavier dressing or alternative material was applied following and in accordance with scientific advice relating to the condition of the soil.
(3) (a) Where the soil characteristics and high excess winter rainfall taken together are such as to be major causes of rapid leaching of calcium from the soil, the value shall be nil at the end of four years after application of the lime; and
(b) in every other case, the value shall be nil at the end of eight years after application of the lime.
(4) In this paragraph and Table 1—
(a) the expression “lime” includes chalk;
(b) “excess winter rainfall” means the amount of rain falling between the date in autumn when the soil reaches field capacity and the end of March in the following year, less the amount of the evapotranspiration from the soil during that period, as is indicated by the data on such rainfall, including data of mean annual excess winter rainfall, in relation to different areas of England and Wales produced from time to time by the Meteorological Office.

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Source: https://www.legislation.gov.uk/uksi/1978/809/schedule/1/part/I/chapter/5 (the official version)
Page: https://openlegislation.uk/agriculture-calculation-of-value-for-compensation-regulations-1978/schedule-1/part-I/chapter-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.