Monkfish-Sliced,Monkfish-Fillets,Monkfish Tails With Skinless,Monkfish Tails With Skin-On GOLD STAR FISHERY ZHOUSHAN CO.,LTD. , https://www.goldstar-aquatic.com
Farmyard fertilizers also need to prevent nutrient losses
At present, many rural households are aware that improper storage and use of chemical fertilizers like urea and ammonium carbonate can lead to significant nutrient loss. However, they often overlook the importance of properly managing farmyard manure, which is one of the most valuable organic fertilizers available in rural areas. This neglect results in substantial nutrient wastage, reducing the effectiveness of natural fertilizers.
For example, some farmers have poorly constructed livestock sheds that are leaky and prone to water seepage. As a result, urine and feces mix with rainwater, leading to nutrient runoff. Others leave animal waste exposed in open piles, where it is subjected to wind, sun, and rain. This exposure causes nitrogen to evaporate as gas and nutrients to wash away with water, making the manure less effective. Studies have shown that if animal urine is not properly managed, up to 96% of its nitrogen content can be lost within just one and a half months. Therefore, it's crucial for farmers to pay more attention to how they store and handle farmyard manure.
To minimize nutrient loss from livestock manure, improving the structure of the manure pit is essential. The pit should be waterproof and airtight to prevent leakage and reduce nutrient loss. It’s also recommended to mix the excreta with soil in a ratio of 1:3 to 1:4, creating a proper base. Farmers should clean the pit daily or every other day. If the manure isn’t used immediately, it should be sealed with mud to maintain its fertility.
When it comes to human urine, which is rich in nitrogen, phosphorus, and potassium, improper storage can lead to severe nutrient loss. If left untreated, about 90% of the nitrogen in human urine can be lost after 60 days of storage. To preserve these nutrients, urine should be collected in covered containers and stored for only 7–10 days. This reduces the time it's exposed and helps retain its nutritional value.
To prevent nutrient loss from human feces, toilets and septic tanks must be well-sealed and protected from leaks and rain. Additionally, when applying human waste to the soil, it’s best to dilute it first and let it decompose for 6–7 days in summer and 15–20 days in other seasons. It’s also strongly advised to collect human excreta separately for better management and utilization.
Regarding plant ash, which contains a high amount of potassium carbonate, it acts as an alkaline fertilizer. However, when mixed with acidic organic manure, a neutralization reaction occurs, leading to nutrient loss. Research has shown that when grass ash and human waste are stored together in a 1:1.5 ratio, nitrogen loss can reach 27.4% after 10 days and as high as 85.9% after three months. Therefore, it’s important to store and use grass ash separately from other organic materials. Avoid mixing it with manure, and ensure it is protected from rain to prevent leaching.
Prev Article
How to retain peanuts?