DEMONSTRATIONS AND RESULTS 2014 B, 2015 A&B Presented by: UWITIJE Cyprien IFDC/PReFER

Introduction IFDC –CATALIST-and RAB have been conducting research to improve fertilizer recommendations From 2014B, IFDC/PReFER has been organizing demonstrations to extend research findings to farmers through the demonstration kits distributed to farmers. IFDC/PReFER introduced the demonstration kits (a kit is a package of fertilizers or lime weighed and packaged for 5x5m plot that is given to the farmer)

Introduction Cnt The demonstration kits have been distributed through agrodealer network and farmers report to them the results from their demonstration Different partner organizations working with the farmers and agrodealers have been targeted for accelerating the adoption of lime and Secondary and Micronutrient use like LWH, Rice Coops, Global Communities, Vi-Agroforestry, AGRIFOP- RADD2, ……

Types of demonstrations done From 2014 B, different demonstrations have been done to allow farmers to see the difference between their current fertilize use practices and new practices. The following kits have been demonstrated:  Crop kits: the demos where farmers were given kits containing macro, secondary and micronutrients fertilizers, lime and rhizobium (where applicable). These were introduced on different crops like rice, soybean, beans, cassava, banana,..  SMN kits: farmers are asked to provide macro nutrient fertilizers and are given Borax, Amm. Sulfate, Zinc Sulfate and Copper Sulfate for 5x5m plot  Extra-macro kits: farmers were given kits containing TSP, MOP, UREA to add to the current recommendation  Lime/Dolomite kits: Farmers are given a kit containing lime/dolomite for 5x5m plot

Number of kits distributed Type of kits2014 B2015 A2015 B2016 A Lime kits SMN kits1701, Extra-macro kits Crop kits Maize6253,135 Beans ,245 Soybeans Irish potato Banana100 Vegetables100 Rice Cassava Sweet potato200 Wheat TOTAL 870 3,927 5,566 11,129

Results from demonstrations Wide-scale Rice demos 2015A  0.9 Mt/ha increased due to briquettes (compacted urea) use  0.8 Mt/ha due to improved formulation  1.7 Mt/ha total yield increase

Extra macro added to current recommendation Nutrient Nutrient supplement kg/ha Yield increase (in Kg/Ha) VCR N23 5,230 P2O5P2O5 23 5,117 K2OK2O30 3,457

Extra macro added to current recommendation (cnt’d) Extra macro kits added to the current maize recommendation Nutrient Nutrient supplemen t kg/ha Yield increase (in Kg/Ha) VCR N23 1,306 P2O5P2O5 23 1,402 K2OK2O30 1,337

Micro-nutrient fertilizers added to current fert recommendation Nutrient Nutrient supplemen t kg/ha Yield increase (in Kg/Ha) VCR B1 3,118 Zn2 1,827 S8 3,018 B+Zn+S1B+2Zn+ 8S 5,618

Micro-nutrient fertilizers added to current fert. recommendation TreatmentsBoron Zinc Sulfur B+Zn+S Control (w/out SMNs) Average yields for Irish potato (Kg/Ha) (non volcanic soils) 15,72714,43615,62718,22712,609 Average yields for Irish potato (Kg/Ha) (volcanic soils) 32,37126,706 Average yields for Maize (Kg/Ha) (non volcanic soils) 3,4923,2103,2004,4882,540 Average yields for Maize (Kg/Ha) ( volcanic soils) 5,9514,280 Average yields forBeans (Kg/Ha) (highland acidic areas) 2,2402,5202,2002,5601,400

Lime kits added in crop fields Crops With lime W/out Lime % of change in yield Average beans 1,8861,50920 Average Irish 13,98911,74716 Average Maize 4,6143,53923 Average Soybean 1, Lime has been used in acidic region at a rate of 800 Kg/Ha Farmers appreciated the quality of lime distributed (mixture of burned and unburned)

Crop kits results T1: 100 Kg DAP or T2: 65 Kg DAP;50 Kg KCl;7 Kg Zinc sulphate;4 kg Borax;600 gr de Rhizobium or Zn- 0.54B+inoculum T3: 65 kg DAP;50 Kg KCl;7 kg Zinc sulphate;4 kg Borax;600 gr Rhizobium;800 kg Lime or Zn-0.54B+inoculum+ Lime The yield increases for about 20% from T1 to T2 While comparing T2 and T3, lime increases yield at about 14%.

Crop kits results on Potato When N and K are increased, the yield increases of 3MT While adding SMNs, the increase in yield is 3.4 MT While adding lime the increase is 3.7MT The potato yield can increase at 27% while the fertilizer cost increase of 3% (using 2016 A pricing)