Integrated nutrient management for upland rice
By: Ranjini P R.
Contributor(s): Jayakrishnakumar K (Guide).
Material type:
BookPublisher: Vellayani Department of Agronomy, College of Agriculture 2002DDC classification: 630 Online resources: Click here to access online Dissertation note: MSc Abstract: An experiment entitled "Integrated nutrient management for upland rice"
was conducted during the first crop season of 2001 at the Instructional Farm,
College of Agriculture, Vellayani.
The experiment was laid out in RBD with twelve treatments and three
replications. The treatments included three levels of nitrogen (60, 75, 90 kg ha'),
two levels of substitution (25 and 50 per cent) and two sources of organic manure
(farm yard manure and verrnicornpost)
The treatments exerted significant influence on most of the biometric and
yield attributing characters of upland rice. Application of 90 kg N with 25 per
cent substitution through vermicompost along with 45 kg K20 significantly
increased the biometric and yield attributes.
The treatments influenced the grain protein content, relative leaf water
content and nutrient uptake significantly. The highest uptake of nitrogen and
potassium was registered when 90 kg N was applied with 25 per cent substitution
through vermicompost whereas maximum phosphorus uptake was obtained upon
application of 90 kg N with 50 per cent substitution through vermicompost.
The soil physical properties were improved due to organic manures.
Maximum lowering of bulk density and increase in porosity and water holding
capacity were obtained due to the application of 90 kg N with 50 per cent
substitution through farmyard manure. There was significant increase in the level
of available nutrients and organic carbon in the soil after the experiment. Soil
available nitrogen and potassium were highest for the treatment in which 50 per
108
cent of 90 kg N was applied as vermicompost whereas the available phosphorus
and organic carbon status of soil were maximum when 25 per cent of 90 kg N was
applied as vermicompost.
The maximum benefit-cost ratio was obtained when 25 per cent of 90 kg N
was applied as farm yard manure.
The results indicated that organic manure has a remarkable role in not only
increasing the yield and yield attributing characters of upland rice, but also in
improving the physical properties of the soil.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 630 RAN/IN (Browse shelf) | Available | 171930 |
MSc
An experiment entitled "Integrated nutrient management for upland rice"
was conducted during the first crop season of 2001 at the Instructional Farm,
College of Agriculture, Vellayani.
The experiment was laid out in RBD with twelve treatments and three
replications. The treatments included three levels of nitrogen (60, 75, 90 kg ha'),
two levels of substitution (25 and 50 per cent) and two sources of organic manure
(farm yard manure and verrnicornpost)
The treatments exerted significant influence on most of the biometric and
yield attributing characters of upland rice. Application of 90 kg N with 25 per
cent substitution through vermicompost along with 45 kg K20 significantly
increased the biometric and yield attributes.
The treatments influenced the grain protein content, relative leaf water
content and nutrient uptake significantly. The highest uptake of nitrogen and
potassium was registered when 90 kg N was applied with 25 per cent substitution
through vermicompost whereas maximum phosphorus uptake was obtained upon
application of 90 kg N with 50 per cent substitution through vermicompost.
The soil physical properties were improved due to organic manures.
Maximum lowering of bulk density and increase in porosity and water holding
capacity were obtained due to the application of 90 kg N with 50 per cent
substitution through farmyard manure. There was significant increase in the level
of available nutrients and organic carbon in the soil after the experiment. Soil
available nitrogen and potassium were highest for the treatment in which 50 per
108
cent of 90 kg N was applied as vermicompost whereas the available phosphorus
and organic carbon status of soil were maximum when 25 per cent of 90 kg N was
applied as vermicompost.
The maximum benefit-cost ratio was obtained when 25 per cent of 90 kg N
was applied as farm yard manure.
The results indicated that organic manure has a remarkable role in not only
increasing the yield and yield attributing characters of upland rice, but also in
improving the physical properties of the soil.
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