1 / 15

SM-CRSP IFS IER

SM-CRSP IFS IER. Development of a Potassium (K) module to be incorporated into Nutrient Management Support System for major West African soils. Adama BAGAYOKO. WEST AFRICAN SOILS CONSTRAINTS. P and N deficiencies. SM-CRSP Source ADSC UH. POTASSIUM (K) DEFICIENCY.

lynley
Télécharger la présentation

SM-CRSP IFS IER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SM-CRSP IFS IER Development of a Potassium (K) module to be incorporated into Nutrient Management Support System for major West African soils Adama BAGAYOKO

  2. WEST AFRICAN SOILS CONSTRAINTS P and N deficiencies

  3. SM-CRSP Source ADSC UH POTASSIUM (K) DEFICIENCY Preliminary results of Nioro-Senegal

  4. Source LaboSEP IER POTASSIUM (K) DEFICIENCY Preliminary results cotton zone in Mali Figure1. Spatial distribution of exchangeable K in cotton zones in Mali Figure 2. Name of site cotton zones in Mali

  5. HYPOTHESIS The continuous cropping systems, without K fertilization deplete the K reserve of most West African soils. Therefore, K applications on these soils become necessary to increase soil nutrient status and sustain or increase crop yields. SM-CRSP IFS IER

  6. OBJECTIVES • The overall objective is to develop K specific recommendations for key stable food crops in West Africa • Specifics objectives: • To develop and compare a K module to accurately predict K fertilizer requirements, • 2. To determine economic benefit. SM-CRSP IFS IER

  7. METHODOLOGY • Soil collection : Cinzana Landform (Toposequence) SM-CRSP IFS IER Soil label CZ1 CZ2 CZ3 CZ4 • Soil analysis • Incubation CZ5

  8. SM-CRSP IFS IER RESULTS AND DISCUSSION

  9. Malian soils results SM-CRSP IFS IER

  10. Soil pH Cinzana Topsoil SM-CRSP IFS IER

  11. Extractable and Exchangeable K (mg/kg) Cinzana Topsoil SM-CRSP IFS IER

  12. Total and Extractable K (mg/kg) Cinzana Topsoil, Mali SM-CRSP IFS IER

  13. INCUBATION RESULTS SM-CRSP IFS IER

  14. SM-CRSP IFS IER CONCLUSION • Potassium levels are low Future research • K Buffer coefficient • Development of a potassium (K) module

  15. Sponsors THANKS SM-CRSP Soil Management Collaborative Research Support Program TPSS Department of Tropical Plant and Soil Science University Hawaii at Manoa IFS International Foundation for Science, Sweden

More Related