What is a disadvantage of Ammonium Nitrate (34-0-0)?

The selection of higher costs compared to other nitrogen sources as a disadvantage of Ammonium Nitrate (34-0-0) is correct because this type of fertilizer is often more expensive than alternatives, such as urea or manure. The price of ammonium nitrate is influenced by various factors, including production processes and market demand. Farmers and agricultural producers often seek cost-effective options for their nutrient needs, and the higher cost of ammonium nitrate can be a significant consideration, especially when managing input budgets.

While other options present valid points about ammonium nitrate, they do not encapsulate the financial aspect which plays a critical role in decision-making for fertilizer application. For instance, low nitrogen concentration would be inaccurate, as ammonium nitrate has a high nitrogen content. The claim that it absorbs moisture from the air could be misleading since while ammonium nitrate can be hygroscopic, its storage conditions and handling can mitigate this issue. Lastly, stating that it does not support vegetable growth is incorrect; in fact, ammonium nitrate effectively provides nitrogen, which is essential for plant growth and development, including vegetables.