How the Head inflates Physical effort - Plus Manure.

Ok - I estimated that I take 20 wheelbarrow loads/month out of the barn @ 150 #/load times 6 months= 9 Tons of manure. I made the mistake of telling my wife this. She told me that I was full of S.
 
So I take a new look at things. 1 pony- puts on 25 # over the period at the most. I use 60 bales of hay at 30#/bale=1800# of hay. Manure therefore=(hay-pony weight gain)times a urine water factor (which I'm gonna guess is 5 on average - this is where some help would be appreciated) gives 4.5 tons of manure. So my imagination inflated it by a factor of 2.
 
Using Shanes #'s of 14.9 N, 4.5 P, 13.2 K #/ton of horse manure. also 650 # of organic matter/ton.
 
Worked into the top 9' soil gives me This gives me approximately 67 # N, 20 # P, 59 # K, and 2925# Org. matter put over 3500 sq.feet. Assuming a soil density of 2.1 and the 9" of soil gives 3500x9/12x62.4x2.1=343,980 # of soil. therefore in parts per million by weight gives me 67/343980= 281ppm-N, 58 ppm-P, and 171 ppm-K and 0.9% organic matter. Can anyone tell me if this looks correct?
 
My soil test lab recommended 100 #/acre N or 23ppm N in the top 9" soil. What level of N in ppm do you use? In the past I think I have used about 25ppm which seems to work OK.
 
Bob.
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index