Talks on Manures / A Series of Familiar and Practical Talks Between the Author and the Deacon, the Doctor, and Other Neighbors, on the Whole Subject - Joseph Harris

	FM	WSC	CS	SP	S-A	SMg	B-A	SAc	MAc	SAm	MAm	RC	Quantity	Wt/Bu.	OC	TC	S&C	TP C&S	C	S&C	TP	OC 100	C100
P l o t s.	Manures perAcre.												Produce perAcre, etc.						Increase perAcre by Manure.
							SPL						Dressed corn.
	Tons.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	Bush. Pks.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.	lbs.
0	..	..	..	..	..	..	600	450	..	..	..	..	18 3½	61.9	125	1296	1862	3158	213	235	448	10.7	69.6
1	..	..	..	600	400	200	..	..	..	..	..	..	18 1¼	61.7	124	1251	1845	3096	168	218	386	11.0	67.8
2	14	..	..	..	..	..	..	..	..	..	..	..	29 2½	63.6	166	2049	3094	5143	966	1467	2433	8.8	66.2
3	Unmanured.		..	..	..	..	..	..	..	..	..	..	15 3½	61.1	114	1083	1627	2710	..	..	..	11.8	66.6
4	..	..	..	..	..	..	200	..	200	400	..	..	28 0½	62.6	159	1919	2949	4868	836	1322	2158	9.0	65.1
5a	..	..	..	300	200	100	200	150	..	300	300	..	36 0	63.3	194	2473	4131	6604	1390	2504	3894	8.6	59.9
5b	..	..	..	300	200	100	200	150	..	300	300	..	37 3¾	63.3	213	2611	4294	6905	1528	2667	4195	8.9	60.8
6a	..	..	..	300	200	100	200	150	..	200	200	..	33 1¾	63.3	154	2271	3624	5895	1188	1997	3185	7.2	62.6
6b	..	..	..	300	200	100	200	150	..	200	200	..	31 0¼	62.3	189	2119	3507	5626	1036	1880	2916	9.8	60.4
7a	..	..	..	300	200	100	200	150	..	200	200	1000	36 3½	63.0	201	2524	4587	7111	1441	2960	4401	8.7	55.0
7b	..	..	..	300	200	100	200	150	..	200	200	1000	37 1½	63.0	178	2532	4302	6834	1449	2675	4124	7.6	58.8
8a	..	5000	..	..	..	..	..	..	..	..	..	..	26 0¾	62.8	141	1785	2769	4554	702	1142	1844	8.6	64.5
8b	..	..	..	300	200	100	200	150	..	100	100	..	27 2¼	62.6	137	1863	2830	4693	780	1203	1983	7.9	65.8
9a	..	..	..	..	..	..	..	..	..	200	200	..	31 1½	62.4	182	2142	3252	5394	1059	1625	2684	9.3	65.9
9b	..	..	..	..	..	..	..	..	..	200	200	..	29 0¾	62.0	170	1970	2942	4912	887	1315	2202	9.5	67.0
10a	..	..	..	..	..	..	..	..	..	200	200	..	28 3½	61.9	179	1966	3070	5036	883	1443	2326	10.0	64.0
10b	..	..	..	..	..	..	..	..	..	200	200	..	28 2½	62.5	149	1937	3048	4985	854	1421	2275	8.3	63.5
11a	..	..	..	..	..	..	200	150	..	200	200	..	32 2¾	62.3	181	2216	3386	5602	1133	1759	2892	8.9	65.4
11b	..	..	..	..	..	..	200	150	..	200	200	..	31 2¾	62.5	181	2163	3302	5465	1080	1675	2755	9.1	65.5
12a	..	..	..	200	100	..	200	150	..	200	200	..	32 3	63.1	165	2234	3600	5834	1151	1973	3124	8.0	62.0
12b	..	..	..	200	100	..	200	150	..	200	200	..	32 2¼	62.5	166	2203	3581	5784	1120	1954	3074	8.2	61.5
13a	..	..	..	300	..	..	200	150	..	200	200	..	30 2¾	62.6	180	2102	3544	5646	1019	1917	2936	9.4	59.3
13b	..	..	..	300	..	..	200	150	..	200	200	..	30 3¼	62.3	160	2083	3440	5523	1000	1813	2813	8.3	60.5
14a	..	..	..	200	..	100	200	150	..	200	200	..	31 0¼	62.9	168	2120	3605	5725	1037	1978	3015	8.6	58.8
14b	..	..	..	200	..	100	200	150	..	200	200	..	31 0½	62.8	165	2121	3537	5658	1038	1910	2948	8.4	59.9
15a	..	..	..	200	100	100	200	..	200	400	..	..	27 0½	62.7	138	1839	3041	4880	756	1414	2170	8.1	60.5
15b	..	..	..	200	100	100	200	..	200	400	..	500	30 2½	62.9	148	2077	3432	5509	994	1805	2799	7.6	60.5
16a	..	..	336¹	200	100	100	200	150	..	300	300	..	36 3¼	63.5	161	2499	4234	6733	1416	2607	4023	6.9	59.0
16b	..	..	..	200	100	100	200	150	..	300	300	..	36 2¾	63.4	176	2501	4332	6833	1418	2705	4123	7.6	57.7
17a	..	..	..	200	100	100	200	150	..	200	200	..	31 3½	63.3	131	2149	3597	5746	1066	1970	3036	6.5	59.7
17b	..	..	..	200	100	100	200	150	..	200	200	..	30 2¼	63.1	152	2079	3406	5485	996	1779	2775	7.9	61.0
18a	..	..	..	..	..	..	..	..	..	200	200	..	30 3¼	63.0	139	2083	3390	5473	1000	1763	2763	7.2	64.1
18b	..	..	..	..	..	..	..	..	..	200	200	..	31 0¾	62.4	143	2090	3586	5676	1007	1959	2966	7.3	58.3
19	..	..	..	..	..	..	200	..	200	300	..	500	30 1	62.4	144	2031	3348	5379	948	1721	2669	7.7	60.7
20}	Unmanured		{..	..	..	..	..	..	..	..	..	..	14 1	60.8	89	956	1609	2565	-127	-18	-145	10.2	59.4
21}			{..	..	..	..	..	..	..	..	..	..	17 3¼	61.9	127	1232	1763	2995	149	136	285	11.5	69.9
22}			{..	..	..	..	..	..	..	..	..	..	17 3¼	61.9	127	1232	1763	2995	149	136	285	11.5	69.9

1. Top-dressed in March, 1851.

The plot continuously unmanured, gives about 16 bushels of wheat per acre.

The plot with barn-yard manure, nearly 30 bushels per acre.

400 lbs. of ammonia-salts alone, on plot 9a, 31¼ bushels; on 9b, 29 bushels; on 10a and 10b, nearly 29 bushels each. This is remarkable uniformity.

400 lbs. ammonia-salts and a large quantity of mineral manures in addition, on twelve different plots, average not quite 32 bushels per acre.

“The superphosphate and minerals,” said the Deacon, “do not seem to do much good, that is a fact.”

You will notice that 336 lbs. of common salt was sown on plot 16a. It does not seem to have done the slightest good. Where the salt was used, there is 2 lbs. less grain and 98 lbs. less straw than on the adjoining plot 16b, where no salt was used, but otherwise manured alike. It would seem, however, that the quality of the grain was slightly improved by the salt. The salt was sown in March as a top-dressing.

“It would have been better,” said the Deacon. “to have sown it in autumn with the other manures.”

“The Deacon is right,” said I, “but it so happens that the next year and the year after, the salt was applied at the same time as the other manures. It gave an increase of 94 lbs. of grain and 61 lbs. of straw in 1851, but the following year the same quantity of salt used on the same plot did more harm than good.”