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The stale seed bed technique of weed control was developed before herbicide use began. It reduces the soil's seed bank or quantity by allowing the weed seeds both opportunity and time to germinate, sprout, and appear before the intended crop is planted. Once the weeds appear, they are easily eliminated by various methods that minimize further ...
Preemergent herbicides are a form of chemical weed control which prevent germinated weed seedlings from becoming established. In some areas of the world, they are used to prevent crabgrass from appearing in lawns. [1] Preemergent herbicides are applied to lawns in the spring and autumn, to prevent the establishment of weed seeds. They will not ...
Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species. [1]
True dormancy or inherent (or innate) dormancy is caused by conditions within the seed that prevent germination even if the conditions are favorable. [7] Imposed dormancy is caused by the external conditions that remain unsuitable for germination [8] Seed dormancy can be divided into two major categories based on what part of the seed produces dormancy: exogenous and endogenous. [9]
Often called field burning, this technique is used to clear the land of any existing crop residue as well as kill weeds and weed seeds. Field burning is less expensive than most other methods such as herbicides or tillage, but because it produces smoke and other fire-related pollutants, its use is not popular in agricultural areas bounded by ...
The Silky lupine's highest germination rate was achieved via mechanical scarification at 66.4%, opposed to its 22% germination rate found in the control group. Using thermal and chemical scarification, germination increased to 48.8% and 44% respectively. 68% of Longspur lupine seeds germinated in the control group, while all scarification ...
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[11] [12] The seeds of some milkweeds need periods of cold treatment (cold stratification) before they will germinate. [13] To protect seeds from washing away during heavy rains and from seed–eating birds, one can cover the seeds with a light fabric or with an 0.5 in (13 mm) layer of straw mulch. [14] However, mulch acts as an insulator ...