Answer to Question #343713 in Organic Chemistry for moitheri

Question

Make a fertilizer calculation if the expected yield is 30 tons per hectare of fresh cobs. You received results from an accredited laboratory, the Bray 1 reads 13 mg per kg of soil, while the K (NH4OAc method) reads 98 mg per kg of soil. Calculate how many kg per ha of N, P, K will you need to apply according to the analysis results, considering guidelines in the three attached pages from the Fertiliser Handbook. Use the attached Kynoch fertiliser mixture list to recommend a fertiliser mixture, then calculate the kg per ha of this fertiliser mixture and LAN (lime ammonium nitrate) straight fertiliser for topdressing-N at between four and eight weeks after planting (choose any one of the products from 1 to 21 on the list for the fertiliser mixture). Hint: You will be band-placing mixture and topdressings-N fertilisers, and only up to 300 kg per ha of fertiliser is recommended in this fertiliser placement strategy.