AG 001 Lecture Notes - Lecture 14: Polyethylene, Loam, Evapotranspiration
8 Oct 2020
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Type of soil. -should be well drained, deep and fertile, preferably loam soil. Topography. -it should be situated on a gentle slope to prevent flooding and erosion through surface run-off. Previous cropping. -to avoid build up of pests and diseases associated with particular plant families, consider the preceding crops. Security. -select a site that is protected from theft and destruction by animals. Protection against strong winds and heat of the sun. -select a sheltered place. i. e. to avoid excessive evapotranspiration and uprooting seedlings. They are used for raising the seedlings of vegetable crops. Tomatoes, cabbages, kale, onions, brinjals and peppers. They are used for inducing root production in cuttings before they are transplanted, The cuttings can be planted directly in the soil and hence called bare root nurseries. Or planted into containers such as pots, polythene bags and others, hence called containerized nurseries. These are used for raising tree seedlings. The seedlings can be raised in bare root nurseries or in containerized nurseries.
