ENVS 2130 Lecture Notes - Lecture 2: Soil Organic Matter, High Fructose Corn Syrup, Tillage

• School: University of Guelph
• Department: Environmental Sciences
• Course: ENVS 2130
• Professor: Peter Kim

Document Summary

Envs 2130 eating sustainability in ontario unit 2. Read chapter 3-(cid:1009) i(cid:374) o(cid:373)(cid:374)i(cid:448)o(cid:396)e"s dile(cid:373)(cid:373)a, hoff(cid:373)a(cid:374) statistics canada: conventional tillage. Feeding operations), farms create closed ecological loops because animals eat fa(cid:396)(cid:373)s" pla(cid:374)ts a(cid:374)d fa(cid:396)(cid:373)s pla(cid:374)ts use the a(cid:374)i(cid:373)als (cid:449)astes as a fertilizer for their crops: a(cid:374)i(cid:373)als left (cid:271)e(cid:272)ause the fa(cid:396)(cid:373)e(cid:396)s (cid:272)ould(cid:374)"t (cid:272)o(cid:373)pete (cid:449)ith the cafos. It cost a farmer more to grow feed corn than it cost the cafo to buy it: corn profited twice during all this. Statistics canada conventional tillage: how conventional is it: tillage involves preparing soil for planting or seeding by plowing, cultivating or turning it. It loosens and aerates the soil, which allows for the deeper penetration of roots. No-till and conservation tillage are relatively new concepts: conventional tillage, conservation tillage and no-till (or zero-till) are defined by the amount of crop residue left on the ground.