Page 180 - Calculating Agriculture Cover 20191124 STUDENT - A

15-8 Metric Measurements CH 15]

Example C: The Castle Company farms 1,000 hectares. Their land is 45% in soybeans, 30% in
corn and 25% pecans. How many acres of each crop are being farmed? Refer to
Table 15.1.
Solution: acres = hectares ÷ metric factor x crop %
Soybeans acres = 1,000 ha ÷ 0.4 x 45%
= 1,000 ÷ 0.4 x 0.45
= 2,500 x 0.45
acres = 1,125 acres
Corn acres = 1,000 ha ÷ metric factor x 30%
= 1,000 ÷ 0.4 x 0.30
= 2,500 x 0.30
acres = 750 acres
Pecans acres = 1,000 ha ÷ metric factor x 25%
= 1,000 ÷ 0.4 x 0.25
= 2,500 x 0.25
acres = 625 acres

Example D: Darrell Vincent Farms has a total of 2,725 acres in nut production for walnuts and
almonds. 82 percent of the farm land is dedicated to walnuts. How many hectares
produce walnuts for Darrel Vincent Farms? Refer to Table 15.1.
Solution: hectares = (acres x metric factor) x crop %
Walnuts hectares = (2,725 ac x 0.4ha/ac) x 82%
= (2,725 ac x 0.4ha/ac) x 0.82
= 1,090 x 0.82
hectares = 893.8 ha

Example E: Trees are spaced 15’ by 15’. (a) How many trees can be planted per hectare knowing
that 1 acre equals 43,560 square feet and 1 hectare is 10,000 square meters; and the
relationship of acres to meters is 0.4 (refer to Table 15.1)? (b) How many trees will
be purchased to populate 30 acres? (c) Each tree will cost $7.98 from the nursery
FOB the farm. What will be the investment in trees? Refer to Table 10.7 and Refer to
Table 15.1.
Solution:
(a) Square feet / acre
——————–———— ÷ metric factor = No. of trees per ha
Row spacing x Tree spacing

43,560 sqft
————— ÷ 0.4 ha/ac = No. of trees per ha
15’ x 15”

43,560 sqft
————— ÷ 0.4 ha/ac = No. of trees per ha
225 sqft

193.6 trees/ac ÷ 0.4 ha/ac = 484 trees per ha

(b) No. of trees / acre x (total acres x metric factor) = Total trees planted
484 Trees / ha x (30 acres x 0.4 ha/ac) =
484 Trees / ha x (12 ha) =
5808 Trees = Total trees planted
(c) Total trees Planted x Cost / Tree FOB = Total tree investment
5808 Trees x $7.98 / Tree FOB =
$46,347.84 = Total tree investment

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