00678nam a2200133 a 450000100080000000500110000800800410001910000170006024500320007726000660010930000080017552003500018365300110053316395112013-10-25       1979    bl uuuu     u0uu1 u    #d1 aBOTHA, J. C.  aLay-out the papaya orchard.  aPretoria: Department of Agricultural Technical Servicesc1979  a1p.  aThe optimal pH of the soil is between 6,0 and 6,5 if the pH of the soil is lower than 6,0 dolomitic agricultural lime should be ploughed in before planting to raise the pH. The soil should be fumigated against nematodes before planting, as nematode infestation of the roots is detrimental to the production as well as the life-span of the trees.  aPapaya