Forage Productivity, Quality and Soil Nutrients Status of Guinea Grass (Panicum maximum Jacq.) based Pasture as Influenced by Legumes Intercropping and Weed Control
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Authors
-
S N Ram
Grassland and Silvopasture Management Division, Indian Grassland and Fodder Research Institute,
Jhansi 284 003,
Abstract
An experiment was conducted during 2007-2011 under rainfed conditions on sandy loam soil at Central Research Farm of Indian Grassland and Fodder Research Institute, Jhansi to study the effect of legumes intercropping and weed control on forage productivity, quality and soil nutrients status of Guinea grass based pasture in semi-arid conditions. The treatment comprised four legumes (Stylosanthes hamata, S. seabrana, Clitoria ternatea and Macroptillium atropurpureum) and four weed management practices (weedy check, hand weeding, weeding with weeder cum mulcher and pre-emergence application of pendimethalin @ 0.75 kg a.i. ha-1). Intercropping of Stylosanthes seabrana with Guinea grass produced significantly higher total dry forage yields (6.68 t ha-1) than Clitoria ternatea (5.41 t ha-1), Macroptillium atropurpureum (5.60 t ha-1) and S. hamata (6.29 t ha-1). Intercropping of S. seabrana with Guinea grass also recorded significantly higher total crude protein yield (582.0 kg ha-1) as compared to C. ternatea (457.7 kg ha-1) and M. atropurpureum (474.9 kg ha-1). In weed management practices, hand weeding 35 days after sowing in 1st year and 25 days after onset of monsoon rain from 2nd year onwards recorded significantly higher dry forage and crude protein yields of both Guinea grass (5.02 t ha-1 and 344.0 kg ha-1) and legumes (2.0 t ha-1 and 271.8 kg ha-1) than weedy check, pre-emergence application of pendimethalin @ 0.75 kg a.i. ha-1 and weeding with weeder cum mulcher. The intercropping of S. seabrana with Guinea grass recorded significant improvement in organic carbon (0.48%) and available nitrogen (228 kg ha-1) than C. ternatea and M. atropurpureum. Available nitrogen (226.2 kg ha-1), phosphorus (9.91 kg ha-1) and potash (195.8 kg ha-1) were also increased significantly in hand weeding plots than weedy check (211.3, 9.05 and 179.1 kg ha-1).Downloads
References
AOAC 1995. Official Methods of Analysis. Association of Official Analytical Chemists. 16th ed. Arlington, VA, USA, pp. 69-88.
Basak, N.S., Nanda, M.K. and Mukherjee, A.K. 2003. Performance of Stylosanthes cultivars in the new alluvial zone of west Bengal. Forage Research 28(4): 223-227.
Clem, R.L., Brandon, N.J., Conway, M.J., Esdale, C.R. and Jones, R.M. 2001. Early stage evaluation of tropical legumes on clay soil at three sites in central and southern inland Queensland. Tropical Agriculture Technical Memorandum 7: 25.
Edye, L.A., Hall, T.J., Clem, R.L., Graham, T.W.G., Messer, W.B. and Rebgetz, R.H. 1998. Sward evaluation of eleven Stylosanthes seabrana accessions and S. scabra CV. Seca at five subtropical sites. Tropical Grasslands 32(4): 234-251.
Liu, A. and Revell, C. 2002. Effect of early application of bromoxynil on the population dynamics of a regenerating pasture species mixture. In 13th Australian Weeds Conference: Weeds “Threats Now and Forever†(Eds. H.S. Jacob, J. Dodd and J.H. Moore), 8-13 Sep. Perth, Western Australia.
Table 3. Effect of legume intercropping and weed management practices on soil organic carbon and available nutrients of soil of Guinea grass based pasture (pooled data of 4 years)
Treatment
Organic carbon
(%)
Available N
(kg ha-1)
Available P
(kg ha-1)
Available K
(kg ha-1)
Guinea + Legumes
G + S. hamata
46
8
26
3
G + S. seabrana
48
0
22
6
G + M. atropurpureum
44
9
58
1
G + C. ternatea
42
9
75
8
SEm±
01
8
18
7
CD (P=0.05)
02
86
52
68
Weed control
Weedy check
51
3
05
1
Pendimethalin (0.75 kg a.i. ha-1)
45
9
09
5
Weeder cum mulcher
44
2
76
4
Hand weeding
41
2
91
8
SEm±
01
8
18
7
CD (P=0.05)
02
86
52
68
G - Guinea grass.
GRASS-LEGUME INTERCROPPING FOR QUALITY FORAGE 13
Moyer, J.R., Acharya, S.N., Mir, Z. and Doram, R.C. 2003. Weed management in irrigated fenugreek grown for forage in rotation with other annual crops. Canadian Journal of Plant Science 83(1): 181-188.
Reddy, T.Y. and Reddy, G.H.S. 1994. Principles of Agronomy. Kalyani Publishers, New Delhi.
p.
Sharma, K.C. and Gill, S.C. 2005. Effect of integrated weed management in lucerne (Medicago sativa) in arid region of Rajaisthan. In Abstr. National Symposium on Advances in Forage Research and Sustainable Animal Production held at CCSHAU, Hisar, August 29-30, p. 65.
Thomas, R.J., Asakawa, N.M., Randon, M.A. and Alarcon, H.F. 1997. Nitrogen fixation by three tropical forage legumes in an arid-soil of Savanna of Columbia. Soil Biology and Biochemistry 28: 801-808.
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