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- Effect of Twelve Years Integrated Nutrient Management Practices on Soil Fertility and Performance of Upland Rice in Terraced Land
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1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
Source
Asian Journal of Bio Science, Vol 11, No 2 (2016), Pagination: 256-262Abstract
A long-term field experiment was started in 2001 on newly constructed bench terraces at the Department of Soil and Water Conservation in the experimental farm of School of Agricultural Science and Rural Development (SASRD), Nagaland University (NU), Medziphema, Nagaland to study the long term effects of various nutrients management practices on performance of upland rice and fertility of terraced land under rainfed condition. Twelve treatments involving N, P and K (NPK) fertilizers, farmyard manure (FYM), poultry litter, forest litter, Azospirillum and Zn either alone or in combinations were applied continuously for twelve years to evaluate the effect of integrated nutrient management practices on available N, P and K content and performance of upland rice in a terraced land. The available N and K content increased significantly in all the treatments whereas, available P content increased significantly in all the treatments except Forest litter burned+ ½ FYM over control. The highest accumulation of available N, P and K was found in NPK+ Poultry litter, NPK+ FYM and ½N+ PK+ ½N Forest litter treatments, respectively. The rate of build up of available N, P and K in different nutrient management practices varied from 3.57 to 22.5, 0.19 to 1.09 and 3.35 to 13.3 kg ha-1 yr-1, respectively. Maximum plant height was recorded in NPK+ FYM+ Zn treatment. The number of productive tillers per plant was also highest in NPK+ FYM+ Zn treatment. The highest straw yield was recorded in NPK+ FYM followed by NPK+ Poultry litter treatment. The highest grain yield was recorded in NPK+ FYM+ Zn followed by NPK+ Poultry litter treatment. Compared with NPK, grain yield in NPK+ FYM+ Zn, NPK+ Poultry litter and NPK+ FYM treatments increased significantly and were 38.1, 34.43 and 32.6 per cent higher, respectively. Among different nutrient management practices, NPK+ FYM+ Zn proved to be the best practices followed by NPK+ Poultry litter and can suitably be recommended for use not only to build up available N, P and K levels but also to produce higher grain yield in terraced land under upland rice cultivation.Keywords
Terraced Land, Available N P K, Grain, Straw Yield.
References
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- Impact of Continuous Fourteen Years of Integrated Nutrient Management Practices on Forms of Soil N and P on Terraced Land
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Authors
Affiliations
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
2 Department of Soil Science, Assam Agricultural University, Jorhat (Assam), IN
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
2 Department of Soil Science, Assam Agricultural University, Jorhat (Assam), IN
Source
An Asian Journal of Soil Science, Vol 12, No 1 (2017), Pagination: 80-85Abstract
An experiment was conducted in the experimental farm at School of Agricultural Sciences and Rural Development, Medziphema, Nagaland to find out the impact of continuous fourteen years integrated nutrient management practices on forms of soil N and P on terraced land. Twelve treatments involving N, P and K fertilizers, farmyard manure, poultry litter, forest litter, Azospirillum and Zn either alone or in combinations were applied continuously for fourteen years. The highest NH4-N content was recorded in NPK+ FYM+ Zn followed by NPK+ FYM treatment, whereas the highest NO3-N content was in NPK followed by NPK+ FYM and NPK+ FYM+ Zn treatments. After fourteen years, the rate of build up of available N in different nutrient management practices was 0.5 to 10.3 kg N ha-1 yr-1 with an average of 5.8 kg N ha-1 yr-1 whereas, the rate of build up of total N in various nutrient management practices was 1 2.8 to 16.1 kg N ha-1 yr-1 with an average of 11.2 kg N ha-1 yr-1. The significant increase in organic N in NPK+ FYM, NPK+ poultry litter and NPK+ FYM+ Zn treatments over NPK was 5.7, 5.0 and 5.4 per cent, respectively. The inorganic P in NPK+ poultry litter, NPK+ FYM+ Zn and NPK+ FYM was 5.8, 3.8 and 2.2 per cent higher as compared to NPK, respectively. The rate of build up of available P in different treatments was 0.01 to 0.76 kg P ha-1 yr-1 with an average of 0.49 kg P ha-1 yr-1. On an average, solution P, inorganic P, available P and organic P represented 0.3, 40.6, 3.3 and 59.6 per cent of total P.Keywords
N Fraction, P Fraction, Terraced Land.References
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- Humtsoe, M. and Chauhan, B.S. (2005). Long term effect of nutrient management practices on soil fertility determinants on terraces land. Indian Agriculturist., 49: 53-64.
- Jackson, M.L. (1973). Soil chemical analysis, Prentice Hall of India Pvt. Ltd., NEW DELHI, INDIA.
- Laxminarayana, K. (2006). Effect of integrated use of inorganic and organic manures on soil properties, yield and nutrient uptake of rice in ultisols of Mizoram. J. Indian Soc. Soil Sci., 54: 120-123.
- Laxminarayana, K. and Patiram (2006). Effect of integrated use of inorganic, biological and organic manures on rice productivity and soil fertility in ultisols of Mizoram. J. Indian Soc. Soil Sci., 54: 213-220.
- Russell, E.W. (1973). Soil conditions and plant growth. 10th Ed. Longman and Co., LONDON, UNITED KINGDOM.
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- Singh, Fateh, Kumar, Ravindra and Pal, Samir (2008). Integrated nutrient management in rice-wheat cropping system for sustainable productivity. J. Indian Soc. Soil Sci., 56: 205-208.
- Subbiah, B.V. and Asija, G.L. (1956). A rapid procedure for the determination of available nitrogen in soils. Curr. Sci., 25: 259-260.
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- Erodibility Status of Soils under Different Land Uses in Chiephobozou Sub-Division Soils of Kohima, Nagaland
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Authors
Affiliations
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
Source
Asian Journal of Bio Science, Vol 12, No 2 (2017), Pagination: 248-253Abstract
Land use effect on soil erodibility parameters were studied in four villages, viz., Tsiesema, Riisoma, Chiephobozou and Botsa in Kohima district, Nagaland, under four land uses, viz., orchard, shifting cultivation, lowland and forest in each village. The mean textural classes of the soils were clay, clay loam and sandy clay loam. Dispersion ratio and erosion index were recorded to be usually higher than the threshold limits. Dispersion ratio of the soils ranged from 8.16 to 30.53 whereas, erosion index varied between 5.28 and 23.91. A significant negative correlation of clay with dispersion ratio and erosion index was observed. The highly significant and positive correlation between erosion index and dispersion ratio indicated the susceptibility of these soils to water erosion. Proper agronomic and mechanical soil and water conservation measures need to be adopted to protect the soils from further degradation.Keywords
Land Uses, Dispersion Ratio, Erosion Index.References
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- Effect of Simulated Soil Erosion and Organic Manures on Soil Properties
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Authors
Affiliations
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
1 Department of Soil and Water Conservation, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Medziphema (Nagaland), IN
Source
An Asian Journal of Soil Science, Vol 15, No 1 (2020), Pagination: 34-40Abstract
A field experiment was carried out to evaluate the effects of simulated erosion and the impact of organic manures on soil physico-chemical properties. The experiment was conducted in split- plot design which comprised of three levels of simulated erosion depths viz., 0, 5 and 10 cm used as the main plot. Organic manures (vermicompost, poultry manure and pig manure @ 5, 3 and 3 t-1 ha, respectively) were used as the sub plot treatment. There was a significant effect on the physico-chemical properties of soil due to erosion. The available nitrogen decreased at a rate of 2.86 and 7.81 per cent; available P decreased at a rate of 9.09 and 17.18 per cent; available K decreased at a rate of 9.52 and 15.12 per cent; organic carbon decreased at a rate of 0.07 and 0.15 per cent; CEC decreased at a rate of 2.81 and 5.48 per cent; water holding capacity decreased at the rate of 4.07 and 7.29 per cent while bulk density increased at a rate of 3.49 and 9.30 per cent and soil pH decreased at a rate of 4.12 and 7.20 per cent, respectively with subsequent removal of 5 and 10 cm topsoil as compared to control. Addition of organic manures improved the soil properties but could not entirely compensate the loss due to simulated erosion.Keywords
Simulated Erosion, Organic Manures, Soil Physico-Chemical Properties.References
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