Table 7.

The mean crop yield^a (t ha⁻¹) for the four liming treatments (control, Low, Medium, High) at Woburn 1962–1996.

Harvest year	Crop	Control	Low	Medium	High	SED
1962b	Spring beans	1.86	2.38	2.40	2.76	–
1963	Spring beans	1.56	2.20	2.07	2.07	0.148
1964	Spring beans	2.40	2.07	1.63	1.66	0.102
1965	Spring barley	4.77	4.99	5.29	5.32	0.060
1966	Spring barley	4.63	4.96	5.15	5.14	0.080
1967	Spring barley	3.64	4.20	4.36	4.40	0.191
1968	Potatoes	26.79	25.88	24.18	24.50	1.282
1969	Fallow	–	–	–	–	–
1970	Spring barley	1.52	3.77	4.10	4.24	0.131
1971	Spring barley	2.18d	4.13	4.19	4.24	0.141
1972	Spring barley	5.31d	4.81	5.28	5.83	0.186
1973	Spring barley	4.19d	3.67	4.17	4.73	0.239
1974	Potatoes	17.9	25.2	26.8	27.8	1.930
1975	Spring oats	1.51	2.07	2.11	2.17	0.091
1976c	Spring oilseed rape	–	–	–	–	–
1977	Spring oats	2.44	2.63	2.67	2.91	0.095
1978	Spring barley	1.21d	4.22	4.82	5.03	0.183
1979	Fallow	–	–	–	–	–
1980	Fallow	–	–	–	–	–
1981	Spring oats	3.92	3.80	3.70	3.60	0.179
1982	Spring oats	1.64	1.85	1.83	1.84	0.162
1983	Potatoes	39.6	48.1	41.2	39.0	1.606
1984	Fallow	–	–	–	–	–
1985	Spring barley	0.78	6.40	7.45	7.45	0.213
1986	Winter Triticale	6.76	6.73	6.55	6.71	0.549
1987	Spring lupins	1.96	1.71	1.61	1.62	0.410
1988	Linseed	1.31	2.76	2.77	2.47	0.116
1989	Spring beans	0.18d	0.61	1.00	1.30	0.295
1990c	Spring beans	–	–	–	–	–
1991	Winter oilseed rape	1.16	2.42	2.62	2.69	0.473
1992c	Winter oilseed rape	–	–	–	–	–
1993c	Winter lupins	–	–	–	–	–
1994c	Winter lupins	–	–	–	–	–
1995	Winter wheat	1.39	7.78	7.37	7.33	1.480
1996	Winter wheat	3.85	8.10	7.48	7.56	1.549

^aAll grain yield (including lupins) has been standardised to 85% dry matter, oilseeds to 90% dry matter and potato yield is fresh weight.

^bTreatment mean data only, no plot level data available.

^cCrop failure.

^dSome plots failed for this treatment.