Site-specific nutrient management in rice-wheat cropping system
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Conclusions drawn on the basis of the results obtained in the present investigation are stated below: 1. Combined application of N150 P60 K120 S40 B5 Mn20 Zn25 (kg ha-1) was the best dose of nutrients in hybrid rice under rice-wheat cropping system which produced highest grain yield (78.91and 75.00 qha-1durng both the years, respectively). It also improved soil fertility status measured as the available N,P,K,S and Zn. 2. For wheat after hybrid rice crop, the application of N150P60K120 kg ha-1 was found most suitable 3. Application of N150 P60 K120 S40 B5 Mn20 Zn25 kg ha-1 in rice showed resid...
Conclusions drawn on the basis of the results obtained in the present investigation are stated below: 1. Combined application of N150 P60 K120 S40 B5 Mn20 Zn25 (kg ha-1) was the best dose of nutrients in hybrid rice under rice-wheat cropping system which produced highest grain yield (78.91and 75.00 qha-1durng both the years, respectively). It also improved soil fertility status measured as the available N,P,K,S and Zn. 2. For wheat after hybrid rice crop, the application of N150P60K120 kg ha-1 was found most suitable 3. Application of N150 P60 K120 S40 B5 Mn20 Zn25 kg ha-1 in rice showed residual effect on succeeding wheat crop as reflected in respect to grain and straw yields and all the nutrient treatment also improved soil fertility. 4. Application of N150 P60 K120 S40 B5 Mn20 Zn25 kg ha-1 in rice and N150 P60 K120 kg ha-1 in wheat (T1) increased soil available nitrogen, phosphorus, potassium, sulphur and zinc after harvest of each crop. 5. Application of N150 P60 K120 S40 B5 Mn0 Zn25 kg ha-1 in rice and N150 P60 K120 kg ha-1 in wheat (T8) was the best treatment and found most economical followed by T1.
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