Tillage and the emergence of weed seedlings

Germination of weed seeds is more likely near the soil surface because seeds are more likely to experience light, fluctuating temperatures, and other factors that commonly promote germination (see Chapter 2). Moreover, if a seed does germinate, emergence from the soil is more likely if the seed is near

Figure 4.3 Vertical distribution of seeds and soil markers following one or two operations with various tillage implements.

Moldboard plow

Rigid tine

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