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Experiment code
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20.2.3.14 |
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Experiment Title
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Nutrients management in summer rice (Oryzae sativa L.) for yield and lodging resistance. |
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Research Type
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Departmental Research |
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Experiment Background
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Background information:
Rice (Oryza sativa L.) is the most important food security crop for about half of the world’s population (Brohi et al., 1998). Many factors are responsible for increasing yield and quality of crops. Among these, adequate fertilization at a right time in a proper manner is essential to achieve potential yield of rice. The farmer generally fertilized the rice either with nitrogen or with nitrogen and phosphorous only, though potassium is equally important as it stabilizes yield and is a quality nutrient. So, adequate fertilization at a right time in a proper manner is essential to achieve potential yield of summer rice.
Nitrogen is the most essential nutrient for rice production. Nitrogen contributes about 20% of the rice yields out of total application of Nitrogen, Phosphorous and Potassium fertilizers. Most of the nitrogen applied through fertilizer is lost from soil by leaching, volatilization, surface runoff and denitrification. Leaching losses can be minimized by split application of nitrogenous simple fertilizer, application of complex/compound fertilizers in granular form, keeping the rice field’s alternate wetting and drying, addition of organic matter to soil. Looking to the various types of losses of nitrogen, the nitrogen use efficiency of rice soil can be increased through right choice of source, right dose, right time and right method of application of N fertilizers (Sahu and Samant, 2006).
Proper K nutrition in rice encourages tillering, panicle development, spikelet fertility, leaf area and leaf longevity and promotes plant uptake of N and P, disease resistance, root elongation and thickness, culm (stem) thickness and strength and resistance to lodging (Haifa 2008).
Rice is a high silicon accumulating plant and the plant is benefited from Si nutrition. Besides rice yield increase, Si has many fold advantages of increasing nutrient availability (N, P, K, Ca, Mg, S, Zn), decreases nutrient toxicity (Fe, P, Al) and minimizing biotic and abiotic stress in plants. Si increases the mechanical strength of the culm, thus reducing crop lodging (Savant et al., 1997).
However, the right amount of N fertilizer in split application along with P2O5, K2O and SiO2 for maximum crop yield and providing lodging resistance is not studied well in the study area. This research was therefore conducted to determine best nutrients management practices in summer rice for better rice production and lodging resistance. |
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Experiment Group
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Natural Resource Management |
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Unit Type
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(01)RESEARCH UNIT |
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Unit
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(55)REGIONAL RICE RESEARCH STATION (VYARA) |
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Department
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(274)Regional Rice Research Station, NAU, VYARA |
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BudgetHead
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(321/12908/00)321/07/REG/02114 |
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Objective
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To find out best nutrients management practices for yield and lodging resistance in summer rice.
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Season
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Summer |
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Location Unit Type
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(01)RESEARCH UNIT |
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Location Unit
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(55)REGIONAL RICE RESEARCH STATION (VYARA) |
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Location Department
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(274)Regional Rice Research Station, NAU, VYARA |
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Plot No
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C-10 |
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PI Name
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(NAU-EMP-2011-000702)VIPULKUMAR PRANJIVANBHAI PATEL |
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PI Email
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vppatel13@nau.in |
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PI Mobile
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8469417374 |
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Year of Approval
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2024 |
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Commencement Year
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2025 |
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Completion Year
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2027 |
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Design of Experiment
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RBD
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Crop Spacing (cm x cm)
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20 X 15
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Gross Plot (m x m)
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2.8 x 6.0 m |
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Net Plot (m x m)
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2.4 x 5.7 m |
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Total Experiment Area (m2)
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604.8 |
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Plot History Last Three Year
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Year/Season
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Kharif
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Rabi/summer
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2022-23
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Rice
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Rice
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2023-24
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Rice
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Rice
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2024-25
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Rice
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Rice
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Initial Soil Sample Analysis Report
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Initial Soil Sample Analysis Report Attachment
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Attachment Not Available!
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Layout Plan
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T7
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T4
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T11
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T5
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T12
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T6
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T10
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T1
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T9
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T3
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T11
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T5
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T8
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T2
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T7
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T1
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T10
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T4
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T11
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T5
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T12
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T6
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T9
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T3
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T9
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T3
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T10
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T4
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T8
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T2
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T12
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T6
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T8
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T2
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T7
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T1
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R-III
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R-II
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R-I
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Layout Plan Attachment
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Attachment Not Available! |
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Treatment
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Experimental details
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
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120 N kg/ha (60-30-30)+ 0 K2O kg/ha
120 N kg/ha (60-30-30)+ 30 K2O kg/ha
120 N kg/ha (60-30-30)+ 1.5 % SiO2
120 N kg/ha (60-30-30)+30 K2O kg/ha+1.5% SiO2
120 N kg/ha (48-48-24)+ 0 K2O kg/ha
120 N kg/ha (48-48-24)+ 30 K2O kg/ha
120 N kg/ha (48-48-24)+ 1.5 % SiO2
120 N kg/ha (48-48-24)+ 30 K2O kg/ha+1.5 % SiO2
120 N kg/ha (30-60-30)+ 0 K2O kg/ha
120 N kg/ha (30-60-30)+ 30 K2O kg/ha
120 N kg/ha (30-60-30)+ 1.5 % SiO2
120 N kg/ha (30-60-30)+ 30 K2O kg/ha+1.5 % SiO2
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Treatment Attachment
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Attachment Not Available! |