| 释义 |
Definition of undersow in English: undersowverbundersownʌndəˈsəʊ [with object]Sow (a later-growing crop) on land already seeded with another crop. （在已种的土地上）套种（晚栽作物） many spring-sown pastures are established with a cover crop by undersowing the grass on land which is carrying a winter-sown cereal our field experiments used various types of undersowing undersown cereals can be difficult to deal with when the corn is slow to ripen Example sentencesExamples - When you undersow, you may prefer a slower-growing plant so that it doesn't compete strongly with the crop it is growing under.
- Hence, to obtain the maximum impact from undersowing in crop protection, the relative height of the two plant types is crucial to the success of the overall system.
- For spring sowings it is ideal to undersow a spring cereal.
- It is safe to undersow with clover and other legumes.
- For example, in undersowing, shorter grasses and cover plants are grown under taller cereal grains.
- Much of the benefit of undersowing clover is the attractant effect of the flowers on beneficial insects.
- The resulting undersown plant growth must be retained until the cereal crop is harvested.
- We're beginning to plant fall cover crops on fields that have finished their production for this season, or in areas where we can undersow existing crops.
- Many farmers also undersowed with annual rye-grasses as a means of boosting winter and early spring feed.
- So after that we just undersowed many of our paddocks with chicory.
- To rebuild topsoil, organic farmers plant green manures, make compost and undersow crops with clover to increase organic matter in soil.
- Green manures can also be used to undersow crops such as corn, reducing weed growth and protecting the soil from erosion.
- In undersowing, the seed is usually placed on top of the soil surface so as not to damage the already sown crop with a tool.
- Therefore, we studied during three growing seasons the effect of undersowing wheat with living mulches on wheat grain yield.
- Green manures may be planted prior to harvest of many late season crops by undersowing.
- I recall one field that I undersowed to sweetclover in 1977, shortly after I started farming organically.
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