We are looking for data from P fertilizer field trials which meet the following criteria: P source appield eithet super or triple phosphate, one treatment with exact return of P removed by harvest, one treatment with half and one treatment with twice of P amount removed by the harvest, data required: yield and P uptake, available P in soil after harvest (OLSEN; CAL or other), duration at least 5 years. Co-authorsip of any paper coming out from using your data are granted!
Hello Ewald. We might have something that you can use, although the treatments / timelength are quite specific. I'll ask collegaues to see if they know of anything suitable also. Kind regards,
Robin
Guten Tag Herr Schnug,
danke fuer Ihre Frage. Meine Field Experimenten sind weiter mit Schwefel. Sonst,
ab 1 September arbeite ich in Lublin, in Economy und Agrobuisness Department.
Unsere Department in Zamosc ist geschlossen.
Uber P-uptake habe in dieses Jahr ein Paper geschrieben:
1.1. Klikocka H., Kobiałka A., Juszczak D., Głowacka A. (2015). The influence of sulphur on phosphorus and potassium content in potato tubers (Solanum tuberosum L.). Journal of Elementology. 20(3): 621-629.
Herlichen Gruessen
Hanna Klikocka
p.s. P-ferilizer neben N,K,S war als 3-superphosphate
Dear Ewald,
I am sorry, but I don´t have such data.
Kind regards,
Frank Jacobs
Dear Ewald,
I am not a field person, but if you are interested in data from Australian farms, I would suggest you contact one of my colleagues, Zed Rengel, Megan Ryan or Kenneth Flower, from the School of Plant Biology at the University of Western Australia.
All the best,
Ricarda.
Hallo Herr Schnug,
wir haben leider keine Versuche zur P-Düngung.
Beste Grüße
Jochen Bogs
Hello
I may have data on single superphosphate applied, soil P status before planting, yield of crop (maize). We can make arrangements if such would be substantial.
Regards
Jerry
Hi Ewald
don't have the required data but Paul Withers and Roger Sylvester-Bradley who lead the DEFRA Arable Link Sustyainable P project may be able to help.
Cheers
Paul
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