In winter and early spring, when temperatures are low, managing pests and applying fertilizers in wheat fields requires careful consideration. Two key points should be taken into account to ensure effective crop protection and nutrition.
When it comes to pest control, it's important to choose the right insecticide. For pests like aphids and red spiders, omethoate is more effective than dimethoate in cold conditions. This is because the detoxification ability of dimethoate decreases significantly as the temperature drops, reducing its effectiveness. In contrast, omethoate remains highly effective even at lower temperatures, such as below 15°C. Similarly, cypermethrin also performs better at 15°C compared to 25°C, making it a suitable choice during colder periods.
Regarding fertilizer application, ammonium bicarbonate is generally a better option than urea during winter or early spring. Once applied to the soil, ammonium bicarbonate can be directly absorbed by wheat plants, providing immediate nutrient availability. Urea, on the other hand, needs to be converted into ammonium carbonate by soil bacteria before it can be taken up by plant roots. This conversion process is heavily influenced by soil temperature. At around 10°C, it typically takes 7 to 10 days for urea to fully convert into a usable form. As a result, using ammonium bicarbonate ensures faster nutrient uptake, which is crucial for maintaining healthy wheat growth during colder months. If urea is used, the slow release of nutrients may delay the development of wheat seedlings, potentially affecting overall yield.
By selecting the right insecticides and fertilizers based on seasonal conditions, farmers can optimize wheat field management and support strong crop growth even in cooler weather.
Sea Shrimp Series
Sea Shrimp Series,Pink Shrimp,Headless Pink Shrimp,Headless Ramboo Prawn
GOLD STAR FISHERY ZHOUSHAN CO.,LTD. , https://www.goldstar-aquatic.com