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International Journal of Horticulture. 2015, Vol. 5, No. 2, 1-8
http://ijh.biopublisher.ca
3
Table 1 Physico-chemical characteristics of the experimental fields
Character
Kharif
-2012
A. Mechanical Composition (Piper, 1966)
Clay (%)
20.38
Silt (%)
9.75
Fine sand (%)
31.32
Coarse sand (%)
38.43
Texture
Red sandy loam
B. Chemical Properties
pH (1:2 soil: water extract) (Jackson, 1973)
7.35
EC dSm
-1
(1:2 soil: water extract) (Jackson, 1973)
0.19
Organic carbon (%) (Walkley and Black, 1934)
0.54
Available nitrogen (kg·ha
-1
) (Subbiah and Asija, 1956)
235.0
Available phosphorus (kg·ha
-1
) (Olsen et al., 1954)
17.45
Available potassium (kg·ha
-1
) (Stanford and English, 1949)
388
Table 2 Varietal characteristics of turmeric BSR 2
S.No.
Particular
Description
1
Year of release
1994
2
Released by
ARS, Bhavanisagar.
3
Parentage
X-ray irradiated mutant from Erode local
4
Duration (days)
240~245
5
Curing percentage
21.00
6
Average productivity of rhizomes
25~30 (t·ha
-1
)
Table 4 Treatment details
T
1
PE metribuzin 0.7 kg·ha
-1
+ HW on 45 and 75 DAP
T
2
PE metribuzin 0.7 kg·ha
-1
+ POE fenoxaprop 67 g·ha
-1
+ metsulfuron 4 g·ha
-1
(Tank mix) on 45
DAP
T
3
PE metribuzin 0.7 kg·ha
-1
+ straw mulch 10 t·ha
-1
on 10 DAP + HW on 75 DAP
T
4
PE pendimethalin 1.0 kg·ha
-1
+ HW on 45 and 75 DAP
T
5
PE pendimethalin 1.0 kg·ha
-1
+ POE fenoxaprop 67 g·ha
-1
+ metsulfuron 4 g·ha
-1
(Tank mix) on
45 DAP
T
6
PE pendimethalin 1.0 kg·ha
-1
+ straw mulch 10 t·ha
-1
on 10 DAP + HW on 75 DAP
T
7
PE atrazine 0.75 kg·ha
-1
+ two HW on 45 and 75 DAP
T
8
PE atrazine 0.75 kg·ha
-1
+ POE fenoxaprop 67 g·ha
-1
+ metsulfuron 4 g·ha
-1
(Tank mix) on 45
DAP
T
9
PE atrazine 0.75 kg·ha
-1
+ straw mulch 10 t·ha
-1
on 10 DAP + HW on 75 DAP
T
10
PE oxyfluorfen 0.30 kg·ha
-1
+ HW on 45 and 75 DAP
T
11
PE oxadiargyl 0.25 kg·ha
-1
+ HW on 45 and 75 DAP
T
12
POE glyphosate 1.03 kg·ha
-1
on 25 DAP + HW on 45 and 75 DAP
T
13
POE glyphosate 1.54 kg·ha
-1
on 25 DAP + HW on 45 and 75 DAP
T
14
Hand weeding on 25, 45 and 75 DAP
T
15
Unweeded check
Note: PE-pre-emergence; POE-post-emergence; DAP-days after planting; HW-hand weeding
reach the soil resulting in conducive environment for
rapid weed growth and enormous damage to crop
yield. The magnitude of yield loss varies from 30 to
75 per cent, depending upon the growth and persistence
of weed density in the standing turmeric crop
(Krishnamurthy and Ayyaswamy, 2000). The traditional