Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 126

Table 7.1 (continued)
Sr. No.

Item specifications Unit of work Required man-days

Unskilled Semi-skilled Skilled

(a) 20 × 40 10,000 nos. 100

(b) 12 × 30 10,000 nos. 33

(c) 10 × 25 10,000 nos. 20

(d) 7 × 20 10,000 nos. 10

2-14 Refilling old polypots in top portion, after scrapping encrusted or saline portion of soil with a

trowel to a depth of 5-7 cm, including preparation of soil mix in the manner prescribed for
filling new polypots:
(a) 20 × 40 10,000 nos. 25

(b) 12 × 30 10,000 nos. 8

(c) 10 × 25 10,000 nos. 5

(d) 7 × 20 10,000 nos. 3

2-15 Sowing of seed, after treating it in the prescribed manner, directly in polypots by pressing the

seed gently into soil to correct depth, as required for the species being sown, and covering
the seed with soil:
(a) Clean seeds requiring no treatment 10,000 nos. 4

(b) Clean seeds after treatment in hot or cold water or acid 10,000 nos. 5

(c) Including breaking of pods and extracting seeds from pods and sowing these 10,000 nos. 12

(d) Breaking of seed coats and extracting kernels and sowing these (for species such as
Zyzyphus, Mangifera, etc.)

10,000 nos. 18

100 m 2

2-16 Laying of seedbeds including preparing and spreading soil-mix uniformly over ground in a

layer of 10 cm thickness and sowing of fine seeds, after mixing these with soil separately to
thin them out, and irrigating the bed with rose cans

14

10,000 m 2

2-17 Ploughing field with the help of an animal-drawn plough, in cross directions, to an average

depth of 20 cm, for preparing mother beds

5

2-18 Preparation of furrows or channels, in field already ploughed up, so as to make irrigation

possible by flow

100 m 1

2-19 Pricking out seedlings from seedbeds and transplanting these into polypots, including proper

refilling of pots and irrigating these with the help of rose cans

10,000 nos. 17