Citation
Mohd Roff M. N., . and Vimala P., . and Ahmad Shokri O., . (2005) Organic cultivation of leaf mustard Brassica juncea under shelter. [Proceedings Paper]
Abstract
Four rates of organic fertilizer 0 15 30 45 t/ha were evaluated on three leaf mustard cultivars organically grown under shelter. For the first cultivar V1 a quadratic relationship represented by the equation Y -0.0088x 0.6887x 1.241 was obtained where Y yield in t/ha and x organic fertilizer in t/ha. The optimum rate of organic fertilizer processed poultry manure was 39.1 t/ha. Yield obtained at this rate was 14.7 t/ha. With cultivar 2 a linear relationship represented by the equation Y 0.1589x 1.334x where Y yield t/ha and x fertilizer applied t/ha was obtained. And for cultivar 3 a quadratic relationship represented by the equation Y - 0.0112x 0.7517x 0.971 where Y yield t/ha and x fertilizer applied t/ha was obtained. The optimum rate of organic fertilizer was 33.6 t/ha. The yield at this rate was 13.6 t/ha. A second crop grown on plots with residual fertilizers only gave yields ranging from 60 to 76 of yields from plots with fertilizer added.
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Official URL: http://myagric.upm.edu.my/id/eprint/16109
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Abstract
Four rates of organic fertilizer 0 15 30 45 t/ha were evaluated on three leaf mustard cultivars organically grown under shelter. For the first cultivar V1 a quadratic relationship represented by the equation Y -0.0088x 0.6887x 1.241 was obtained where Y yield in t/ha and x organic fertilizer in t/ha. The optimum rate of organic fertilizer processed poultry manure was 39.1 t/ha. Yield obtained at this rate was 14.7 t/ha. With cultivar 2 a linear relationship represented by the equation Y 0.1589x 1.334x where Y yield t/ha and x fertilizer applied t/ha was obtained. And for cultivar 3 a quadratic relationship represented by the equation Y - 0.0112x 0.7517x 0.971 where Y yield t/ha and x fertilizer applied t/ha was obtained. The optimum rate of organic fertilizer was 33.6 t/ha. The yield at this rate was 13.6 t/ha. A second crop grown on plots with residual fertilizers only gave yields ranging from 60 to 76 of yields from plots with fertilizer added.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| AGROVOC Term: | Brassica juncea |
| AGROVOC Term: | Organic fertilizers |
| AGROVOC Term: | Leaf vegetables |
| AGROVOC Term: | Pesticides |
| AGROVOC Term: | Fertilizers |
| AGROVOC Term: | Chemical properties |
| AGROVOC Term: | Experiments |
| AGROVOC Term: | Harvesting |
| AGROVOC Term: | Crop yield |
| AGROVOC Term: | Soil nutrient content |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:16 |
| URI: | http://webagris.upm.edu.my/id/eprint/13416 |
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