Technology used in food production
Increase in population- increase demand of food- a need to improve the quantity and quality of food production In Malaysia, to meet the demand of food, food has to be imported and efforts are being carried out by the various government agencies to diversify food production
Methods to improve quality and quantity of food production Direct seeding Hydroponics and aeroponics Selective breeding Tissue culture Genetic engineering Proper soil management Biological control
Direct sedding Seeds sown directly, involve no transplanting hence plants achieve faster growth and give higher yields. Example : cultivation of padi
Hydroponics and aeroponics Hydroponics- growing crop plants in culture solution containing macronutirients and micronutrients Aeroponics – culture solutions are sprayed directly to the roots of plants
Advantages of Hydroponics and aeroponics
These method require less space Can be carried out on a large scale Does not require the use of insecticides and pesticides Can be carry out all year round Suitable to carried out at home for home consumption Example : Tomato, lettuce, spinach
Selective breeding Different plants and animals with beneficial characteristics such as high nutritional contents, shorter maturity time, higher yields and higher resistance to disease are selected. Example : Palm fruit Cross between Dura and Pisifera to produce Tenera
Tissue culture Produces clones with the same desired characteristics as the parent Produce large numbers of young plants within a short time
Genetic engineering Transfer of useful genes from one organism to another GEO = genetically engineered organisms, are called transgenic organisms GMF = genetically modified food Eg : wheat, tomatoes, soy beans
Proper soil management To prevent leaching, soil erosion, depletion of soil nutrients and change in soil texture Increase humus content of soil for better crop yield
Biological control Control pests without using pesticides and insecticides, for better crop yield Eg : the use of snakes and owls to control rats in oil palm estates