Table 13 Number of holdings which have supplied artificial fertilisers to grain and oil-seed. Municipalities in county of Østfold. 1989 and 1999

13	Number of holdings which have supplied artificial fertilisers to grain and oil-seed. Municipalities in county of Østfold. 1989 and 1999

	Holdings by supplied amount of Nitrogen				Holdings by supplied amount of Phosphorous

	Total	1-9 kg N/daa	10-11 kg N/daa	12 kg N/daa or more	Total	0.1-0.9 kg P/daa	1.0-1.4 kg P/daa	1.5-1.9 kg P/daa	2.0-2.4 kg P/daa	2.5 kg P/daa or more

1989	4 469	497	1 806	2 166	4 425	¹..	525	¹..	3 203	697
1999	3 302	233	1 115	1 954	3 278	158	223	645	1 745	507

0101 Halden	276	23	122	131	274	11	15	76	114	58
0104 Moss	26	:	14	:	22	:	:	5	11	6
0105 Sarpsborg	384	36	142	206	383	24	37	100	152	70
0106 Fredrikstad	363	21	145	197	362	17	22	67	214	42
0111 Hvaler	23	7	12	4	23	3	4	12	4	-
0118 Aremark	96	14	49	33	96	4	3	40	42	7
0119 Marker	179	18	78	83	177	11	12	38	106	10
0121 Rømskog	21	:	16	:	19	:	:	12	7	-
0122 Trøgstad	234	23	83	128	227	13	15	48	116	35
0123 Spydeberg	144	12	31	101	144	5	7	18	88	26
0124 Askim	118	5	35	78	113	:	:	23	76	14
0125 Eidsberg	308	25	135	148	305	19	21	66	168	31
0127 Skiptvet	182	9	28	145	181	7	11	13	107	43
0128 Rakkestad	413	11	91	311	408	20	20	55	241	72
0135 Råde	168	7	38	123	167	6	16	18	89	38
0136 Rygge	112	5	20	87	112	5	20	16	48	23
0137 Våler	143	7	41	95	142	5	6	24	93	14
0138 Hobøl	112	6	35	71	112	4	7	14	69	18

¹	In 1989 the question about Phosphorous were asked as kilograms without decimal.