Comparative performance evaluation of mechanical transplanting and direct seeding of rice under puddle and unpuddle conditions
KrishiKosh
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Title |
Comparative performance evaluation of mechanical transplanting and direct seeding of rice under puddle and unpuddle conditions
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Creator |
Rakesh Kumar
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Contributor |
Bansal, N.K.
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Subject |
Rice, Planting equipment, Sowing, Land resources, Costs, Puddling, Irrigation, Crops, Planting, Mechanization
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Description |
Rice is a major crop that is grown in more than 110 countries. The total area planted under rice in India is 44.0 million hectares which is largest in the world against a total area of 156.6 million hectares. The total rice production in the world was 650.19 million tonnes out of which 141.13 million tonnes were produced in India. The average yield of rice in India is 3.20 tonnes/hectare. The lowest yield of (29.75 q. /ha) was obtained in Zero till-mechanical transplanting (T4) and the maximum yield (32.67 q./ha) was obtained in Unpuddle-mechanical transplanting (T5.). Economic of rice cultivation under different crop establishment techniques is presented in the Table 4.6. The rental value of the land is assumed to remain the same offset the price fluctuation. The gross returns of T4 and T2 (Zero till-direct seeded rice without residues) were found less as compared to other treatments. The lowest and highest net returns were found to be Rs.5314 (T7) and Rs.16090 (T3) with per hectare, respectively. The height benefit cost ratio was obtained as 1.27 and 1.30 for T2 and T3, respectively. The lowest benefit cost ratio was obtained as 1.08 and 1.16 for T7 and T4, respectively. A comparison between transplanting treatments T4 & T5 (unpuddled field) and T6 & T7 (puddle field) clearly shows that any attempt to switch from the irrigating practice of transplanting under puddle conditions to transplanting under unpuddled conditions will require additional water applications i.e., the water applied in transplanted treatments with unpuddled field was more than 20 cm than that applied under puddled field conditions. It is also important to note that the fields of study were historically under puddle transplanted conditions. It is assumed that there may be slight effect of previous years puddling on the infiltration rate of the soil. Consequently, the water required for unpuddled field is expected to be even more than what was observed under this study. |
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Date |
2016-11-08T08:51:17Z
2016-11-08T08:51:17Z 2011 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/84324
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Language |
en
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Format |
application/pdf
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Publisher |
CCSHAU
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