The following table shows the expense of each degree of manuring, viz., 10, 15, and 20 trees per maund:—

Table showing the possible cost and result of manuring with cattle manure.

Rate of ManuringMaunds of manure per acre at 2,500 plants per acreCost of manure at 3 annas per maund N.B.—Ans. omittedProbable extra yield of Tea per acreValue of extra yield of Tea at Rs. 50 per maundProfit by manuring per acreDeducting the probable cost of putting in the manure, the following profit is shown per acre
Mds. Rs. Mds. Rs. Rs. Rs.
One md. to 10 plants 250 47 2½ 125 78 70
One md. to 15 plants 166 31 2 100 69 62
One md. to 20 plants 125 23 1½ 75 52 46

It is not too much to calculate that this will add respectively 1½, 2, and 2½ maunds of Tea per acre to the yield, and I have carried this out in the table and shown the results.

I quite believe the results shown will be obtained by manuring, and I base my opinion on practice not theory.

N.B.—I have deducted Rs. 8 for the first, Rs. 7 for the second, and Rs. 6 for the third, as the probable cost of putting in the manure, as it may have to be carried from the factory to the garden. If purchased after being placed between the lines (and if manure is bought of adjacent villagers they will so place it), the cost would be less.

The above table, of course, only applies to localities where cattle manure can be purchased at 3 annas per maund, including carriage to the factory.

The value of the extra yield of Tea is estimated at only Rs. 50 per maund in the above table, because the leaf which will give one maund of Tea is worth no more, as follows:—

Rs.A.P.
Probable price obtainable for one maund or 80 lbs. Tea in Calcutta, at 14 annas a lb. all round (a fair calculation, one year with the other, if it is well manufactured).7000
Deduct cost, manufacture, packing, transport, and broker’s charges as set out in the chapter on “cost manufacture,” page [162]1690
Value of leaf which will make one maund Tea5370