2023年9月11日 · Here we reconstructed a comprehensive dataset for crop-specific N fertilization at 5-arc-min resolution (~10 km by 10 km) during 1961–2020, including N application rate, types, and placements....

2024年4月11日 · Nitrogen fertilizer is a nitrogen-rich substance, either solid or liquid, widely used in agriculture to promote crop growth and unlock higher yields. Nitrogen (N) is a common component of fertilizers because it is essential for all plants to produce energy in their cells.

The major nitrogen (N) fertilizers are: ammonium nitrate (34% N), urea (46% N), anhydrous ammonia (82% N), and urea–ammonia nitrate mixtures (ammonium nitrate and urea dissolved in water containing 28–32% N).

2024年5月23日 · Every fertilizer label will give information about its “N-P-K” content, the amount of nitrogen, phosphorus, and potassium (standardized in that order) in the particular fertilizer blend. This is expressed as a series of three numbers that give the percentage (also called “ratio” in this sense of the word) of each nutrient by weight.

2024年12月24日 · What Are Nitrogen Fertilizers? N fertilizers are simply additives, in either solid or liquid form, that add nitrogen to the soil. They may come as part of a more comprehensive fertilizer that also includes compounds such as phosphates …

2025年1月5日 · Using a combination of long-term (n = 379) and short-term (n = 176) experiments, we show that the economic optimum nitrogen rate for US maize production has increased by 2.7 kg N ha −1 yr...

Whether you’re looking for the convenience of a leading brand or in need of nitrogen-rich organic fertilizer, we’ve done the homework to turn your garden, lawn, or allotment into a green, and bountiful paradise. If you’re short on time, then here are my best high-nitrogen fertilizers for general use, house plants, and lawns.

2024年11月15日 · Anthropogenic nitrogen (N) inputs substantially influence the N cycle in agricultural ecosystems. However, the potential links among various environmental factors, nitrogen functional genes, and transformation rates under N fertilization remain poorly understood.

Fertilizers common to crop production in Indiana usually contain nitrogen in one or more of the following forms: nitrate, ammonia, ammonium or urea. Each form has specific properties that determine when, where and how various fertilizer materials can be used.

2024年7月2日 · What Is Nitrogen Fertilizer? Nitrogen fertilizers are one of the most widespread products used in agriculture worldwide as an essential nitrogen source for plant growth. Some common types of nitrogen fertilizers include urea (CH4N2O), ammonia (NH3), ammonium (NH4), sodium nitrate (NaNO3), and sodium chloride (NaCl).