Influence of potassium chloride on vegetable plants grown on peat substratum
1996
Jaervan, M. (Estonian Agricultural Univ., Tartu (Estonia))
For growing greenhouse cucumbers on peat substratum, both sulphate and chloride complex fertilizers are suitable. A moderate excess of the chloride-ion in the substratum is not harmful for plants. Tomato plants grew better on a peat substratum which contained potassium chloride and the development of the first cluster of flowers was faster than on the substratum containing potassium sulphate. When the chloride content in the peat substratum exeeds 600 mg/l or when higher than optimum amounts of fertilizers are used in the plant substratum, there will be a decreased in height, weight and leaf-area of cucumber and tomato plants, the root system of cucumber plants will be damaged and formation of the first cluster of tomato flowers will become slower
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