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The application of seaweed extracts reduces the presence of harmful pests including nematodes and insects. [61] [68] [12] While the application of seaweed seems to reduce the harmful effects of nematode infestation, the combination of seaweed application and carbofuran, a chemical nematocide, seems to be most effective. [68]
It is often applied before the weed seeds germinate (pre-emergence) in order to prevent them from germinating. It is available as granules or an emulsifiable concentrate. Estimates place the total use of bensulide in the United States at about 632,000 pounds annually. Application rates may be relatively heavy (up to 22.6 kg/ha) when it is used.
Foliar application has been shown to avoid the problem of leaching-out in soils and prompts a quick reaction in the plant. Foliar application of phosphorus, zinc and iron brings the greatest benefit in comparison with addition to soil where phosphorus becomes fixed in a form inaccessible to the plant [5] and where zinc and iron are less available.
Ultra-low volume (ULV) application of pesticides has been defined as spraying at a Volume Application Rate (VAR) of less than 5 L/ha for field crops or less than 50 L/ha for tree/bush crops. VARs of 0.25 – 2 L/ha are typical for aerial ULV application to forest or migratory pests.
SWAT is a continuous time model that operates on a daily time step at basin scale. The objective of such a model is to predict the long-term impacts in large basins of management and also timing of agricultural practices within a year (i.e., crop rotations, planting and harvest dates, irrigation, fertilizer, and pesticide application rates and timing).
China's economy grew a bit more in 2023 than earlier thought, but the revision has not affected forecasts for “about 5%” growth in the GDP this year, the government said Thursday. The estimate ...
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As the Fed rate rises, so do APYs on savings accounts, CDs and money market accounts — with today’s rates on the best high-yield savings accounts topping 4% APY.