An Asian Journal of Soil Science

B. G. Masthana Reddy ¹, Manjunatha Hebbara ², V. C. Patil ³, S. G. Patil ⁴

Affiliations
1 Agricultural Research Station, Gangavathi, Koppal (Karnataka), IN
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN
3 College of Agriculture, University of Agricultural Sciences, Raichur (Karnataka), IN
4 College of Agriculture, Bheemarayanagudi, Raichur (Karnataka), IN

Abstract

AExperiment was conducted at Agricultural Research Station, Gangavathi, Karnataka during kharif 2000 and summer 2001 to study the effect of levels, splits and timing of NPK application on growth, yield and economics in transplanted rice. Application of 250:55:104 kg N,P and K ha^-1 with NPK split application up to the beginning of grain filling stage recorded significantly higher grain yield of 7.02 and 8.03 t ha^-1 in kharif and summer season, respectively with corresponding net returns of Rs 36967 and Rs 33593 ha^-1.

Keywords

Dry Matter, Harvest Index, Net Returns, Split Application and Transplanted Rice.

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B. G. Masthana Reddy ¹, Manjunatha Hebbara ², V. C. Patil ³, S. G. Patil ⁴

Affiliations
1 Agricultural Research Station, Gangavathi, Koppal (Karnataka), IN
2 Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Dharwad (Karnataka), IN
3 College of Agriculture, University of Agricultural Sciences, Raichur (Karnataka), IN
4 College of Agriculture, Bheemarayanagudi, Raichur (Karnataka), IN

Abstract

A field experiment was conducted at Agricultural Research Station, Gangavathi, Karnataka, during Kharif 2000 and summer 2001 to study the effect of different N, P and K levels on growth and yield of irrigated rice. Application of 200:44:62 kg N, P and K ha-1 with an N:P:K ratio of 3.2:0.7:1for kharif rice and 250:44:62 kg ha-1 with an N:P:K ratio of 4:0.7:1 for summer rice appeared to be optimum for realizing higher grain yield and monetary returns. The higher grain yields were attributed to higher dry matter production as well as higher harvest index. Among the yield parameters, the number of panicles per unit area contributed most to the grain yield.

Keywords

Dry Matter, Harvest Index, Net Returns Transplanting.

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