Alley croping in cassava (Manihot esculenta crantz.)
By: Gayathri P.
Contributor(s): Lakshmi S (Guide).
Material type:
BookPublisher: Vellayani Department of Agronomy, College of Agriculture 2010DDC classification: 630 Online resources: Click here to access online Dissertation note: MSc Abstract: A field experiment was conducted to asses the bio and economic suitability of raising fodder grasses and legumes in the alleys of cassava for food - fodder production and to study the response of the system to AMF application at the Instructional Farm attached to the College of Agriculture, Vellayani during 2009. The experiment with fourteen treatments was laid out in Randomized Block Design with three replications. Cassava was planted in paired rows (120/60 cm x 90 cm) with fodder grasses and fodder cowpea and combination of fodder grass and fodder cowpea in the inter spaces with and without AMF.
Highest tuber yield was obtained from sole cassava followed by cassava + fodder cowpea and cassava + palisade grass + fodder cowpea. The yield attributes of cassava were not influenced by alley cropping indicating the suitability of alley cropping in paired row planted cassava. The total dry fodder yield and crude protein yield of the system were highest in cassava + palisade grass + fodder cowpea combinations.
All treatments recorded a total LER value more than one. The fodder crops were found to be more aggressive and with high competitive ability than cassava. Highest cassava equivalent yield of 22.95 t ha -1 was recorded by sole cassava on par with cassava + fodder cowpea + AMF with a yield of 20.01 t ha -1 and cassava + palisade grass +fodder cowpea (19.78 t ha -1) .
Nutrient uptake by cassava was not influenced by the presence of fodder crops or AMF application. Application of AMF also had no influence on the yield and net returns of the system.
Highest net income, cassava equivalent income and B: C ratios were obtained from sole crop of cassava followed by cassava + palisade grass + fodder cowpea. Application of AMF had no influence on the biological, economic and land use efficiency of the system.
Hence it can be concluded that to achieve the objective to find out a cassava based fodder production system for food – fodder security, alley cropping in cassava cv. Vellayani Hraswa of duration six months with two rows of palisade grass inter-planted with one row of fodder cowpea is the most efficient with respect to biological productivity (cassava equivalent yield of 19.78 t ha-1), quality of feed (crude protein yield of 0.59 t ha-1), economic returns (cassava equivalent income of Rs. 98936 ha-1) and land use efficiency (land equivalent ratio of 1.70).
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
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KAU Central Library, Thrissur Theses | 630 GAY/AL PG (Browse shelf) | Available | 173021 |
MSc
A field experiment was conducted to asses the bio and economic suitability of raising fodder grasses and legumes in the alleys of cassava for food - fodder production and to study the response of the system to AMF application at the Instructional Farm attached to the College of Agriculture, Vellayani during 2009. The experiment with fourteen treatments was laid out in Randomized Block Design with three replications. Cassava was planted in paired rows (120/60 cm x 90 cm) with fodder grasses and fodder cowpea and combination of fodder grass and fodder cowpea in the inter spaces with and without AMF.
Highest tuber yield was obtained from sole cassava followed by cassava + fodder cowpea and cassava + palisade grass + fodder cowpea. The yield attributes of cassava were not influenced by alley cropping indicating the suitability of alley cropping in paired row planted cassava. The total dry fodder yield and crude protein yield of the system were highest in cassava + palisade grass + fodder cowpea combinations.
All treatments recorded a total LER value more than one. The fodder crops were found to be more aggressive and with high competitive ability than cassava. Highest cassava equivalent yield of 22.95 t ha -1 was recorded by sole cassava on par with cassava + fodder cowpea + AMF with a yield of 20.01 t ha -1 and cassava + palisade grass +fodder cowpea (19.78 t ha -1) .
Nutrient uptake by cassava was not influenced by the presence of fodder crops or AMF application. Application of AMF also had no influence on the yield and net returns of the system.
Highest net income, cassava equivalent income and B: C ratios were obtained from sole crop of cassava followed by cassava + palisade grass + fodder cowpea. Application of AMF had no influence on the biological, economic and land use efficiency of the system.
Hence it can be concluded that to achieve the objective to find out a cassava based fodder production system for food – fodder security, alley cropping in cassava cv. Vellayani Hraswa of duration six months with two rows of palisade grass inter-planted with one row of fodder cowpea is the most efficient with respect to biological productivity (cassava equivalent yield of 19.78 t ha-1), quality of feed (crude protein yield of 0.59 t ha-1), economic returns (cassava equivalent income of Rs. 98936 ha-1) and land use efficiency (land equivalent ratio of 1.70).
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