Sharma, R.P. and Singh, A.K. and Poddar, B.K. and Raman, K.R. (2008) Forage production potential and economics of maize (Zea mays) with legumes intercropping under various row propotions. Indian Journal of Agronomy , 53 (2). pp. 121-124.
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Abstract
A field experiment was conducted during the summer season of 2006 and 2007 at Sabour, Bihar to assess the production potential and economic viability of intercropping of forage maize (Zea mays L.) with cowpea [Vigna unguiculata (L.) Walp.], rice bean [Vigna umbellata (Thumb) ohwi and ohashi] and clusterbean [Cyamposis tetragonaloba (L.) Taub.] under four row proportions, viz. 1:1, 1:2, 2:1 and 2:2. Intercropping of maize and cowpea in the row proportion 2: 2 recorded significantly higher total green fodder (43.2 t/ha), dry matter (9.6 t/ha) and crude-protein yield (1.1 t/ha) as well as net returns (Rs 16,104/ha) and benefit : cost ratio (1.84) compared with the other treatments except maize + rice bean planted in the ratio 2:2. The association of maize and cowpea in row ratio 2:2 also showed the highest land-equivalent ratio (1.84) and relative crowding coefficient (7.08), followed by maize + rice bean in 2:2 ratio. Among the component crops, maize was more competitive and aggressive than legume intercrops. However, maize intercropped with cowpea and rice bean both in row proportion 2:1 was found to be a compatible intercropping system with lower values of aggressivity (0.01) and competition ratio (1.03). Thus intercropping of forage maize with cowpea or rice bean both in 2:2 row ratio are the biologically and economically sustainable intercropping systems.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Bihar Agricultural College, Rajendra Agricultural University, Sabour, Bihar 813 210 |
| Subjects: | Plant Production Plant Production > Croping Systems |
| Divisions: | Maize |
| Depositing User: | David T |
| Date Deposited: | 29 Nov 2010 20:40 |
| Last Modified: | 29 Dec 2010 20:11 |
| Official URL: | http://www.indianjournals.com/ijor.aspx?target=ijo... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/823 |
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