Three Functions Hand Shower,Tri-Functional Hand Shower,Triple Function Handheld Shower,Square Push Dial Hand Showe ASHOWER , https://www.ashower.com
August to October is an ideal time for sowing autumn crops in the south, such as rapeseed, broad beans, green manure, potatoes, and various vegetables. These crops are typically sown during this period, and farmers know that applying phosphate fertilizer at this stage can significantly improve crop yield and quality. The use of phosphate fertilizer is based on the relationship between the crops, soil, and nutrients, as well as the biological, chemical, and location efficiency of the fertilizer itself. Applying phosphate fertilizer during autumn sowing helps maximize its benefits and ensures efficient nutrient use.
Phosphorus-rich crops benefit greatly from phosphate application. For example, legumes like broad beans and peas, as well as cruciferous crops like rapeseed and radish, are highly sensitive to phosphorus and require larger amounts. Applying phosphate fertilizer during autumn sowing meets their critical phosphorus needs, which promotes early maturity, high quality, and higher yields. In phosphorus-deficient soils, adding phosphate fertilizer can significantly increase yields. According to agricultural experiments, applying phosphate fertilizer increased rapeseed yield by 44.5 kg per mu, and green manure legumes saw over a 50% increase. The strong root systems of these crops allow them to absorb more phosphorus, making the fertilizer more effective than in other crops.
Dry farming conditions often reduce the effectiveness of phosphorus. After winter, microbial activity slows down, and the soil's ability to release phosphorus decreases. Additionally, dry soil has low moisture, which limits the movement and availability of phosphate. This makes phosphorus less effective compared to rice fields under water. Crops like wheat, which need more phosphorus during certain growth stages, benefit from timely phosphate application. Applying it during dry seasons improves root development and seedling growth, helping crops thrive despite harsh conditions.
Dry soils also have a high capacity to fix phosphorus, forming insoluble compounds like iron and aluminum phosphates, which reduces its availability. Therefore, dryland should receive more phosphate fertilizer than paddy fields. When transitioning back to rice cultivation, the residual effect of applied phosphate remains significant, accounting for 75-90% of the total.
Applying phosphate fertilizer also enhances the resilience of autumn-sown crops. During cold and dry winters, crops are vulnerable to frost and drought, but phosphate helps maintain cell hydration and lowers the freezing point, improving cold and drought tolerance. For green manure crops, which are also phosphorus-demanding, applying phosphate boosts photosynthesis, increases carbohydrate production, and supports rhizobium growth, enhancing nitrogen fixation. This not only strengthens seedlings but also improves winter survival and prepares for better growth next year.
In different crop rotation systems, while not every crop requires phosphate every season, it’s crucial to apply it where it will have the most impact. Autumn-sown crops are the best candidates for phosphate application. The recommended method is to mix phosphate with organic fertilizers or ammonium bicarbonate and apply it as base fertilizer during sowing. A typical rate is 20-25 kg per mu, placed 6-10 cm deep. It can also be combined with 3-5 kg of phosphate mixed with fine soil and applied directly with seeds. Combining base and seed fertilization, along with shallow and deep applications, ensures optimal results.