caa a22 4500 46320879X CHVBK 20180405153134.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10705-006-9058-2 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9058-2 Rochester Ian CSIRO Plant Industry, Australian Cotton Research Institute, LB 59, 2390, Narrabri, NSW, Australia aut Nutrient uptake and export from an Australian cotton field [Elektronische Daten] [Ian Rochester] Soil fertility may decline as a result of nutrient export from high-yielding cotton crops and this may limit the productivity of future crops unless these nutrients are replaced. Uptake of nutrients by cotton (Gossypium hirsutum L.) and nutrient export from the field in seed were measured within two cropping systems experiments from 1999 to 2005 in a flood-irrigated cotton field. Lint yields of the seven crops assessed ranged from 975 to 2725kg lint/ha. Nutrient uptake was measured at mid to late boll-fill and nutrient removal determined from analysis of delinted seed. Cotton crops accumulated an average of 180kg N/ha (range 67-403), 27kg P/ha (range 18-43), 167kg K/ha (range 88-264), 41kg S/ha, 160kg Ca/ha, 36kg Mg/ha, 7kg Na/ha, 890gm Fe/ha, 370gm Mn/ha, 340gm B/ha, 130gm Zn/ha and 51gm Cu/ha. On average, the seed within harvested seed cotton removed 93kg N/ha (range 38-189), 18kg P/ha (range 8-34), 29kg K/ha (range 13-51), 8kg S/ha, 4kg Ca/ha, 12kg Mg/ha, 0.2kg Na/ha, 136g Fe/ha, 12g Mn/ha, 41g B/ha, 96g Zn/ha and 20g Cu/ha. Nutrients contained in the lint and trash were not included. For crops yielding about 1800kg/ha, 70% of the Zn and P taken up was removed in the seed, also 52% of N, 38% of Cu, 34% of Mg, 21% of S, 17% of K and Fe, 12% of B and only 3% of Ca, Mn and Na. Predictive equations were developed to allow growers to estimate the removal of nutrients given the lint yield measured from their cotton crops. Springer Science+Business Media B.V., 2006 Fertility nationallicence Flood irrigation nationallicence Nitrogen nationallicence Nutrition nationallicence Phosphorus nationallicence Potassium nationallicence Micronutrient nationallicence Removal nationallicence Replacement nationallicence Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 213-223 1385-1314 77:3<213 2007 77 10705 https://doi.org/10.1007/s10705-006-9058-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9058-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Rochester Ian CSIRO Plant Industry, Australian Cotton Research Institute, LB 59, 2390, Narrabri, NSW, Australia aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/3(2007-03-01), 213-223 1385-1314 77:3<213 2007 77 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer