Dry winter? Here’s how to deal with herbicide carryover
Dry winter? Here's how to deal with herbicide carryover Farm Progress
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Identify at-risk fields
Start by determining which fields are most at risk of herbicide carryover, advises AgriGold Agronomist Jason Mefford. This assessment depends on soil type and the chemistry used.
- Fields with lighter, sandier soils with lower cation exchange capacity (CEC) scores are more prone to herbicide carryover, especially in dry conditions. Low organic matter also increases the risk.
- Chemistries such as p-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides used on corn, protoporphyrinogen oxidase (PPO) inhibitors of Group 14 used on soybean fields, and stacking of Group 2s or acetolactate synthase (ALS) inhibitors are particularly concerning in terms of herbicide carryover.
Adjust your management strategy
Farmers with fields at high risk of herbicide carryover can consider adjusting their rotation to match the previous year’s planting. Other strategies include diluting the layer of chemical by discing and reducing seeding populations to promote better plant health.
Scout fields and manage accordingly
While herbicide carryover injury is not widespread across a field, it is more likely to occur at field entrances, areas with application overlaps, and lighter areas of the field. Farmers should assess the extent of damage before deciding how to manage the affected crop. Signs of herbicide carryover damage include stunting, chlorosis, necrosis, and specific symptoms related to different chemistries.
Evaluate your chemical plans for the 2024 season
To prevent future issues, farmers should evaluate the chemistries they plan to use in the current season and compare them to the previous year. Avoid stacking chemistries that can compound the problem and consider swapping out chemicals if necessary. Seeking assistance from agronomists is also recommended.
Source: AgriGold
SDGs, Targets, and Indicators
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SDGs Addressed or Connected to the Issues Highlighted in the Article
- SDG 2: Zero Hunger
- SDG 6: Clean Water and Sanitation
- SDG 12: Responsible Consumption and Production
- SDG 15: Life on Land
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Specific Targets Based on the Article’s Content
- SDG 2.4: By 2030, ensure sustainable food production systems and implement resilient agricultural practices that increase productivity and production, that help maintain ecosystems, that strengthen capacity for adaptation to climate change, extreme weather, drought, flooding, and other disasters, and that progressively improve land and soil quality.
- SDG 6.3: By 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater, and increasing recycling and safe reuse globally.
- SDG 12.4: By 2020, achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water, and soil in order to minimize their adverse impacts on human health and the environment.
- SDG 15.3: By 2030, combat desertification, restore degraded land and soil, including land affected by desertification, drought, and floods, and strive to achieve a land degradation-neutral world.
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Indicators Mentioned or Implied in the Article
- Soil type and cation exchange capacity (CEC) scores
- Chemistry used, such as p-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides, protoporphyrinogen oxidase (PPO) inhibitors, and acetolactate synthase (ALS) inhibitors
- Presence of symptoms like stunting, chlorosis, necrosis, and shortened internodes in plants
- Evaluation of chemical plans and comparison with previous years
Table: SDGs, Targets, and Indicators
| SDGs | Targets | Indicators |
|---|---|---|
| SDG 2: Zero Hunger | Target 2.4: By 2030, ensure sustainable food production systems and implement resilient agricultural practices that increase productivity and production, that help maintain ecosystems, that strengthen capacity for adaptation to climate change, extreme weather, drought, flooding, and other disasters, and that progressively improve land and soil quality. | Soil type and cation exchange capacity (CEC) scores |
| SDG 6: Clean Water and Sanitation | Target 6.3: By 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater, and increasing recycling and safe reuse globally. | Chemistry used, such as p-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides, protoporphyrinogen oxidase (PPO) inhibitors, and acetolactate synthase (ALS) inhibitors |
| SDG 12: Responsible Consumption and Production | Target 12.4: By 2020, achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water, and soil in order to minimize their adverse impacts on human health and the environment. | Presence of symptoms like stunting, chlorosis, necrosis, and shortened internodes in plants |
| SDG 15: Life on Land | Target 15.3: By 2030, combat desertification, restore degraded land and soil, including land affected by desertification, drought, and floods, and strive to achieve a land degradation-neutral world. | Evaluation of chemical plans and comparison with previous years |
Copyright: Dive into this article, curated with care by SDG Investors Inc. Our advanced AI technology searches through vast amounts of data to spotlight how we are all moving forward with the Sustainable Development Goals. While we own the rights to this content, we invite you to share it to help spread knowledge and spark action on the SDGs.
Fuente: farmprogress.com
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