IAIAsa Green Agriculture event

Transcription

1 Taking conservation agriculture to the next level within the Western Cape and how current and future practices can help contribute to a green economy IAIAsa Green Agriculture event Stellenbosch JA Strauss 3 November 2015

2 Points of Discussion Introduction What is Conservation Agriculture Impact of current successes in dryland cereal and pasture cropping systems on the green economy Future Impact In closing Western Cape Government

3 History Western Cape Government

4 There is nothing in the whole of nature that is more important or deserves as much attention as the soil. Truly it is the soil that makes the world a friendly environment for humankind. It is the soil that nourishes and provides for the whole of nature; the whole of creation depends on the soil, which is the ultimate foundation of our existence. Friedrich Albert Fallon, German scientist, 1862 YEAR OF THE SOILS Western Cape Government

5 Western Cape Government

6 BRAZIL WES-KAAP Western Cape Government

7 Western Cape Government

8 Cost of erosion Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 8

9 What is Conservation Agriculture Proven Holistic system 1.55 x 10 8 ha Western Cape Government

10 Western Cape Government

11 Western Cape Government

12 Less Carbon Loss here Carbon is everything! (Organic Material) We need more carbon here Western Cape Government 2012

13 Mining OM is not an option 1 % O.M. contains: 4536 kg C 454 kg N 45 kg P 45 kg S 7.6mm 25mm H 2 O Western Cape Government 2012

14 Current successes Western Cape Government

15 Stelsel Gem opbrengs kg/ha % bewerkbare oppervlak onder koringverbouing Totale produksie vir 800ha plaas ton/plaas Rangorde in totale produksie KKKK CKKK LKCK LCKK MCMK MKMK MkKMkK Western Cape Government

16 Stelsel KKKK CKKK LKCK LCKK MCMK MKMK MkKMkK Gem bruto marg R/ha Totale bruto marge vir die boerdery met n 800ha lande R/plaas Rangorde in totale bruto marge vir die boerdey Western Cape Government

17 Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 17

18 Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 18

19 Carbon accumulation WWWW MgC.ha-1 = 45 ton/ha WMc+S MgC.ha-1 = 42 ton/ha 31.5 ton in 2002 = 47 % 31.2 ton in 2002 = 34 % Introduction of no-till 2.5 ton/ha average yield 4.0 ton/ha average yield Tillage methods WMWM CT MgC.ha-1 NT MgC.ha-1 WCWL NT MgC.ha-1 CT MgC.ha-1 Carbon sink Less fossil fuel (up to 66%) Diversity = increase Root of the problem is the root of the solution Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 19

20 The Gabe Brown Story North Dakota Ca + cover crops Cover mixes %C Cattle system Fertilizer Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 20

21 Regenerative agriculture Building topsoil Biodiversity Cover crops Soil Health More than sustainability Western Cape Government

22 Western Cape Government 2012 Go to Insert > Header & Footer > Enter presentation name into footer field 22

23 In closing Western Cape Government

24 What is Conservation Agriculture? MINDSHIFT Western Cape Government

25 Contact Us Johann Strauss en kie Direktoraat Plantwetenskappe Tel: Fax: