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Illinois Fertilizer Conference Proceedings
January 25-27, 1999

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Table 6. Effect of BioPlus program on alfalfa yields at Hancock, WI, 1981-1989.
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Treatment
Yield
Fertilizer
Bioplus**
S&B*
1987***
1988
1989
 
---------T/a DM---------
0
-
-
0.95
4.44
3.65
0
+
-
0.83
4.29
3.54
180 K2O
-
-
0.89
4.25
3.84
180 K2O
+
-
0.83
4.38
3.85
180 K2O
-
+
0.85
4.29
3.68
180 K2O
+
+
0.89
4.34
3.81
LSD (0.10)
 
 
NS
NS
0.16

* Sulfur and B treatments were 25 lb S/a/yr as CaSO4 and l lb B/a/yr. Potash was topdressed pregrowth as 0-0-60 in 1988 and 1989. Initial soil test levels were pH 6.5, P=135 lb/a, and K = 248 lb/a.
** BioPlus Micro 800 used at l pt/a after each cut.
*** Only one harvest post-treatment in 1987.


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