Journal Title
Title of Journal: Nutr Cycl Agroecosyst
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Abbravation: Nutrient Cycling in Agroecosystems
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Publisher
Springer Netherlands
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Authors: Xinhua Yin Christopher Main
Publish Date: 2015/11/21
Volume: 103, Issue: 3, Pages: 359-373
Abstract
Nitrogen N management strategies for cotton may need to be modified because of the use of new high yielding cultivars and improved cropping systems The objective of this research was to determine the optimal N application rate and critical leaf N concentration for contemporary high yielding cotton under notillage systems A stripplot trial was conducted on eleven private farms in Crockett Fayette Gibson Haywood Lake and Lauderdale counties from 2009 through 2010 in Tennessee Five N treatments of 0 45 90 134 and 179 kg N ha−1 were evaluated as sidedress N of urea and ammonium nitrate solution in strip plots in a randomized complete block design with three replicates Eight out of the eleven location–years showed significant yield responses to sidedress N applications Applying 45–146 kg N ha−1 including preplant and sidedress N was sufficient for maximum cotton yields at the N responsive location–years The results of this study indicate that the current N fertilizer recommendations for cotton may be more than adequate for some upland soils but inadequate for some other upland fields A range of 344–474 g kg−1 of leaf N concentration at early bloom is required for cotton to reach to maximum lint yield These critical leaf N values were somewhat greater than the current sufficient N range which suggests that the current critical leaf N concentrations for cotton in the southern US may need to be modified contemporary high yielding varieties require slightly higher N application rates to maximize yieldsThis project was supported by Cotton Incorporated Cooperative Agreement No 09497TN managed by Dr Robert L Nichols We appreciate the cooperative farmers Ryan Gorley Crockett County Bill Walker Fayette County Jeff Dodd Gibson County Bradley Booth Haywood County John Lindamood Lake County and Eugene Pugh Lauderdale County for allowing us to conduct tests on their farms Technical assistance was provided by Robert Sharp James Warren Tracy Bush Matthew Ross Ngowari Jaja Will Goforth and others
Keywords:
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Other Papers In This Journal:
- Amending soil with used cooking oil to reduce nitrogen losses after cole crop harvest: a 15 N study
- Effects of fertiliser type and the presence or absence of plants on nitrous oxide emissions from irrigated soils
- Relative contribution of trees and crops to soil carbon content in a parkland system in Burkina Faso using variations in natural 13 C abundance
- Shrubs affect soil nutrients availability with contrasting consequences for pasture understory and tree overstory production and nutrient status in Mediterranean grazed open woodlands
- Forecasting long-term global fertilizer demand
- 15 N tracer technique analysis of the absorption and utilisation of nitrogen fertiliser by potatoes
- Nitrogen, phosphorus, and potassium budgets in Indian agriculture
- Effects of different manuring systems with and without biogas digestion on nitrogen cycle and crop yield in mixed organic dairy farming systems
- Crop response of aerobic rice and winter wheat to nitrogen, phosphorus and potassium in a double cropping system
- Net N immobilisation during the biodegradation of mucilage in soil as affected by repeated mineral and organic fertilisation
- Phosphorus and potassium cycling in a long-term no-till integrated soybean-beef cattle production system under different grazing intensities insubtropics
- Contribution of relay intercropping with legume cover crops on nitrogen dynamics in organic grain systems
- Method and timing of grassland renovation affects herbage yield, nitrate leaching, and nitrous oxide emission in intensively managed grasslands
- Mineralizable soil nitrogen and labile soil organic matter in diverse long-term cropping systems
- Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system
- Soil N 2 O fluxes in integrated production systems, continuous pasture and Cerrado
- Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
- Gross nitrogen mineralization in pulse-crop rotations on the Northern Great Plains
- Management strategies for reducing soil degradation through modeling in a GIS environment in northern Ethiopia catchment
- Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West African Sahel
- Effects of catch crops on silage maize ( Zea mays L.): yield, nitrogen uptake efficiency and losses
- Nitrogen input, 15 N balance and mineral N dynamics in a rice–wheat rotation in southwest China
- Nutrient cycling in an agroforestry alley cropping system receiving poultry litter or nitrogen fertilizer
- How much nitrogen is fixed by biological symbiosis in tropical dry forests? 2. Herbs
- Nitrogen fertilizer placement and timing affects bread wheat ( Triticum aestivum) quality and yield in an irrigated bed planting system
- Nitrogen fixation of red clover interseeded with winter cereals across a management-induced fertility gradient
- Response of bulk chemical composition, lignin and carbohydrate signature to grassland conversion in a ley-arable cropping system
- Nitrogen recovery and downslope translocation in maize hillside cropping as affected by soil conservation
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Long-term effects of fertilization and manuring on groundnut yield and nutrient balance of Alfisols under rainfed farming in India
- Response of intensively grazed ryegrass dairy pastures to fertiliser phosphorus and potassium
- Effect of seasonal rainfall, N fertilizer and tillage on N utilization by dryland wheat in a semi-arid environment
- Above- and belowground litter stocks and decay at a multi-species afforestation site on arid, saline soil
- Productivity of yam-based systems with herbaceous legumes and short fallows in the Guinea-Sudan transition zone of Benin
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