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Title of Journal: Nutr Cycl Agroecosyst

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Abbravation: Nutrient Cycling in Agroecosystems

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Springer Netherlands

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DOI

10.1007/bf01109602

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1573-0867

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Nitrogen phosphorus and potassium budgets in Ind

Authors: H Pathak S Mohanty N Jain A Bhatia
Publish Date: 2009/06/25
Volume: 86, Issue: 3, Pages: 287-299
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Abstract

Nutrient budgeting is a useful tool in determining present and future productivity of agricultural land as well as undesirable effects of nutrient mining and environmental pollution Budgets of N P and K were calculated for India for 2000–2001 taking into consideration the inputs through inorganic fertilizer animal manure compost green manure leguminous fixation nonleguminous fixation crop residues rain and irrigation water and outputs through crop uptake and losses through leaching volatilization and denitrification Inorganic fertilizer was the dominant source contributing 64 of N and 78 of P inputs in Indian agriculture whereas K input through inorganic fertilizer was 26 Removals of N P and K by major agricultural crops in the country were 77 13 and 75 Mt respectively There were positive balances of N 14 Mt and P 10 Mt and a negative balance of K 33 Mt It was projected that N P and K requirement by Indian agriculture would be 978 157 and 952 Mt respectively to meet the food demand of 13 billion people by 2020 The study identified the ‘hotspots’ of excess nutrient loads as well as of nutrient mining regions in India to improve our ability to predict environmental degradation due to imbalanced fertilizer use However there are some uncertainties in India’s nutrient budget and more research is required to reduce these uncertainties


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  1. Amending soil with used cooking oil to reduce nitrogen losses after cole crop harvest: a 15 N study
  2. Effects of fertiliser type and the presence or absence of plants on nitrous oxide emissions from irrigated soils
  3. Relative contribution of trees and crops to soil carbon content in a parkland system in Burkina Faso using variations in natural 13 C abundance
  4. Shrubs affect soil nutrients availability with contrasting consequences for pasture understory and tree overstory production and nutrient status in Mediterranean grazed open woodlands
  5. Forecasting long-term global fertilizer demand
  6. 15 N tracer technique analysis of the absorption and utilisation of nitrogen fertiliser by potatoes
  7. Effects of different manuring systems with and without biogas digestion on nitrogen cycle and crop yield in mixed organic dairy farming systems
  8. Crop response of aerobic rice and winter wheat to nitrogen, phosphorus and potassium in a double cropping system
  9. Net N immobilisation during the biodegradation of mucilage in soil as affected by repeated mineral and organic fertilisation
  10. Phosphorus and potassium cycling in a long-term no-till integrated soybean-beef cattle production system under different grazing intensities insubtropics
  11. Contribution of relay intercropping with legume cover crops on nitrogen dynamics in organic grain systems
  12. Method and timing of grassland renovation affects herbage yield, nitrate leaching, and nitrous oxide emission in intensively managed grasslands
  13. Mineralizable soil nitrogen and labile soil organic matter in diverse long-term cropping systems
  14. Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system
  15. Soil N 2 O fluxes in integrated production systems, continuous pasture and Cerrado
  16. Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
  17. Gross nitrogen mineralization in pulse-crop rotations on the Northern Great Plains
  18. Management strategies for reducing soil degradation through modeling in a GIS environment in northern Ethiopia catchment
  19. Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West African Sahel
  20. Nitrogen fertilization and critical nitrogen concentration for contemporary high yielding cotton under no-tillage
  21. Effects of catch crops on silage maize ( Zea mays L.): yield, nitrogen uptake efficiency and losses
  22. Nitrogen input, 15 N balance and mineral N dynamics in a rice–wheat rotation in southwest China
  23. Nutrient cycling in an agroforestry alley cropping system receiving poultry litter or nitrogen fertilizer
  24. How much nitrogen is fixed by biological symbiosis in tropical dry forests? 2. Herbs
  25. Nitrogen fertilizer placement and timing affects bread wheat ( Triticum aestivum) quality and yield in an irrigated bed planting system
  26. Nitrogen fixation of red clover interseeded with winter cereals across a management-induced fertility gradient
  27. Response of bulk chemical composition, lignin and carbohydrate signature to grassland conversion in a ley-arable cropping system
  28. Nitrogen recovery and downslope translocation in maize hillside cropping as affected by soil conservation
  29. Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
  30. Long-term effects of fertilization and manuring on groundnut yield and nutrient balance of Alfisols under rainfed farming in India
  31. Response of intensively grazed ryegrass dairy pastures to fertiliser phosphorus and potassium
  32. Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
  33. Above- and belowground litter stocks and decay at a multi-species afforestation site on arid, saline soil
  34. Productivity of yam-based systems with herbaceous legumes and short fallows in the Guinea-Sudan transition zone of Benin

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