Sustainable Potato Production - Guidelines for - FAO.org

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associated with increased stresstolerance.3Apply the total amount of potassiumbefore or during planting.Magnesium3Close attention should be paid tomagnesium requirements, particularlywhen potatoes are grown on light acidsoils. High rates of potassium, andnitrogen application in the form ofammonium, reduce the uptake ofmagnesium.Calcium3Potatoes are tolerant to soil acidity. BelowpH 4.8, however, the crop may fail due tocalcium deficiency. Liming may benecessary.3Seed potatoes, in particular, need to begrown in soils with sufficient calcium.Calcium deficient seed tubers may fail tosprout properly.Foliar fertilizers3Foliar fertilizers contain major nutrientsand also micronutrients. They are appliedto and absorbed by the leaves and havetherefore an immediate effect on plantgrowth. They may help to overcomeapparent nutrient deficiencies, especiallyof micronutrients, and support plantrecovery following stress events, such asfrost and drought.Potential areas of improvement3Promote the establishment of laboratorieswhere soil mineral content can be assessedprior to planting. Laboratories can alsoverify the claimed concentrations of N-P-Kin commercial products.3Promote the development and use ofdecision support systems that help growersapply fertilizers according to soil mineralcontent and crop needs.3Encourage fertilizer companies to marketcompound fertilizers with compositions ofN, P and K tailored to different soil types.3Support integrated crop management(ICM) programmes and integratednutrient management systems for potatoes.3For the fertilization of crop mixtures thatinclude potato, the Nutrient SupplementationIndex (NSI) concept can help estimatethe additional percentage of N, P, K and Caneeded to satisfy the needs of a 1:1 rowintercrop (e.g. potato-corn). NSI estimatestotal fertility input needs for the multiplecropping system based on the nutrientuptake of each crop component relative totheir monoculture uptake. With NSI,intercrop fertilizer needs can be estimatedfrom established sole crop response curvesfor the component species. Alternatively,fertilizer needs for the multiple crop systemcan be estimated for a given plantingpattern using the response equations ofone or more of the component crops.3Develop nutrient management practicesfor potato production under conservationagriculture.49KEY INDICATORSOFSUSTAINABILITY
The advantages of conservation agriculture50SUSTAINABLEPOTATOPRODUCTIONConservation agriculture (CA)aims at enhancing naturalbiological processes both aboveand below ground. It is based onthree principles: minimummechanical soil disturbance,permanent organic soil cover,and diversified crop rotations forannual crops and plantassociations for perennial crops.By minimizing soil disturbance,CA creates a vertical macro-porestructure in the soil, whichfacilitates the infiltration ofexcess rainwater into the subsoil,improves the aeration of deepersoil layers, and facilitates rootpenetration.POTATO FARMING IN ARGENTINA.(PHOTO: H.C. CUEVAS)
Page 1 and 2: SustainablepotatoproductionGUIDELIN
Page 3 and 4: ISBN 978-92-5-106409-2The designati
Page 5 and 6: POTATO HARVESTIN TAMIL NADU,SOUTHER
Page 7 and 8: Abbreviations and acronymsCIPDLSFAO
Page 9 and 10: AT A POTATOSORTING FACTORYIN THE NI
Page 11 and 12: POTATO FIELDSIN CENTRAL JAVA,INDONE
Page 13 and 14: POTATO MARKETIN KASUNGU, MALAWI.(PH
Page 15 and 16: 14SUSTAINABLEPOTATOPRODUCTIONExport
Page 17 and 18: 16SUSTAINABLEPOTATOPRODUCTION
Page 19 and 20: POTATO PLOTS IN SRI LANKA.(PHOTO: A
Page 21 and 22: 20SUSTAINABLEPOTATOPRODUCTIONThe co
Page 23 and 24: 22SUSTAINABLEPOTATOPRODUCTIONExampl
Page 25: 24SUSTAINABLEPOTATOPRODUCTION“PAC
Page 30 and 31: Storage and transportIn the tropics
Page 32 and 33: SECTION 3Key indicatorsof sustainab
Page 34 and 35: Biodiversity and varietiesThe potat
Page 36 and 37: Potential areas of improvement3More
Page 38 and 39: Seed production and seed qualityAre
Page 40 and 41: 3Provide a storage area with good a
Page 42 and 43: and on land not infested with soil-
Page 44 and 45: Seed systemsIn most developing coun
Page 46 and 47: Soil health and fertility managemen
Page 48 and 49: Nutrient managementSustainable nutr
Page 52 and 53: Soil conservationSoil erosion on ti
Page 54 and 55: Pest managementPotato diseases are
Page 56 and 57: Potential areas of improvement3Deve
Page 58 and 59: Water managementIn potato productio
Page 60 and 61: Post-harvest managementSince harves
Page 62 and 63: necessary to prevent the entry of r
Page 64 and 65: Value addition and marketsWith its
Page 66 and 67: Farmers’ health, safety and welfa
Page 68 and 69: SECTION 4Implicationsfor policyand
Page 70 and 71: Building support at policy levelGlo
Page 72 and 73: Research for development agendaAcce
Page 74 and 75: future. Research on integrated mana
Page 76 and 77: Partnerships for policy and researc
Page 78: SECTION 5Potato fact sheetsTo deepe
Page 94: International Year of the Potato Se

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