CPSC 112 Lecture Notes - Lecture 10: Photosynthesis, Hydroponics, Rubisco
3 Oct 2018
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Identify role of n,p,k in plant: macro vs micronutrients, liebig"s law of minimum. 3: examine patterns of npk uptake during season, label a fertilizer response curve, contrast fertilization objectives based on soil test levels. Written as genus - species authority: soybean - glycine max, bread wheat - triticum aestivum, corn - zea mays, rice oryza sativa. Grain contains high amounts of nutrients that leave the field when it is harvested. Simple math - cannot take out more than you put in. Most soils in the world would support a growing plant through maturity. For crop production we aim for non-limiting conditions and high yields which requires high amounts of nutrients, either from soil or fertilizer. Growth is not controlled by the total amount of resources available, but by the most limiting (scarcest) resource. Sufficient or surplus nutrients have no benefit until other limitations are relieved. Large quantities of c, o, h from air and water.
