1、Excessive application of chemical fertilizer and organophosphorus

It is significant to clarify the factors influencing TP loss, as well as explore the relationship between TP loss from planting and surface water eutrophication for making recommendations on the...

2、Phosphorylation regulation of nitrogen, phosphorus, and potassium

Nitrogen, phosphorus, and potassium are the three macronutrient elements necessary for plant growth and development. Field application of nitrogen, phosphorus, and potassium fertilizers guarantees high crop yields.

3、Excessive application of nitrogen and phosphorus fertilizers induces

The nitrogen (N) surplus for vegetable fields exceeded 170 kg/ha/crop, and the phosphorus (P) surplus exceeded 40 kg/ha/crop. Thus, current vegetable production leads to potential environmental risks of N and P pollution of nearby aquatic bodies.

Frontiers

Rational fertilization is the main measure to improve crop yield, but there are differences in the optimal effects of nitrogen (N), phosphorus (P) and potassium (K) rationing exhibited by the same crop species in different regions and soil conditions.

The Impact of Nitrogen and Phosphorus Interaction on Growth

The research demonstrates that N amplifies the activity of crucial enzymes and proteins related to P absorption, facilitating root expansion to increase P capture. In low Pi availability environments, N catalyzes recycling processes for reusing P, whereas P aids in N assimilation within the plant.

How Does Fertilizer Affect the Nitrogen and Phosphorus Cycle? Unveiled

Two key nutrients affected by fertilizer application are nitrogen and phosphorus. Understanding how fertilizers influence these cycles is crucial for ensuring sustainable agricultural practices and protecting our environment.

Effects of nitrogen, phosphorus, and potassium fertilization on plant

Nitrogen (N), phosphorus (P), and potassium (K) play important roles in plant growth, with supplemental amounts often provided by the application of various fertilizers.

Impacts of nitrogen (N), phosphorus (P), and potassium (K) fertilizers

Soil nutrient deficiency is one of the significant challenges in grain production, particularly nitrogen (N), phosphorus (P), and potassium (K). These deficiencies not only reduce crop yields but also cause associated environmental issues, such as soil structure deterioration and ecosystem services diminution.

Nitrogen and phosphorus fertilizer use efficiency: the interactive

However, excessive use of N and P fertilization can result in low N and P fertilizer use efficiencies (RE N and RE P) and loss of N and P through gaseous emission and leaching, but...

Impact of Overfertilization on Plant Health and Nutrition

Excessive fertilizer application primarily involves nitrogen but can also affect phosphorus and potassium levels. Over time, this practice leads to nutrient imbalances that interfere with normal plant physiology and soil ecology.

The reasons why excessive nitrogen fertilizer affects the absorption of phosphorus and potassium fertilizers mainly involve the following aspects:

1. Soil pH Impact: The decomposition of nitrogen fertilizers (mainly urea) in soil releases ammonia, which lowers the soil's pH. Excessively acidic soil conditions can hinder the absorption of phosphorus and potassium by plants. These elements typically exist in acidic environments, but their availability decreases as soil pH drops. overapplication of nitrogen fertilizer may reduce soil pH, subsequently impacting phosphorus and potassium uptake.

2. Nitrogen Competition: Excessive nitrogen application leads to surplus nitrogen supply, creating competition with phosphorus and potassium uptake. Plants may prioritize essential nutrients, reducing nitrogen absorption relative to phosphorus and potassium. This imbalance occurs because plants require balanced nutrient supply throughout their growth cycle.

3. Nitrogen Form Variation: The type and form of nitrogen fertilizer influence phosphorus and potassium absorption. Some nitrogen fertilizers contain microelements like sulfur and magnesium, which also play roles in plant growth and nutrient uptake. Excessive nitrogen fertilizers containing these elements might inhibit phosphorus and potassium absorption.

4. Soil Microbial Activity: Nitrogen fertilizer usage affects soil microbial populations. These organisms are crucial for nutrient cycling and transformation. Overapplication of nitrogen may suppress beneficial microbes, disrupting phosphorus and potassium availability.

5. Crop-Specific Needs: Different crops have varying nitrogen, phosphorus, and potassium requirements. While some demand high nitrogen, others prioritize phosphorus and potassium. Excessive nitrogen application might create relative deficiencies in these elements, affecting crop yields.

6. Environmental Factors: Climate and rainfall patterns also impact nutrient absorption. For instance, drought-stressed plants may reduce nitrogen uptake to conserve water, indirectly affecting phosphorus and potassium uptake. Insufficient rainfall limits nutrient solubility and transport, further challenging plant access to these elements.

multiple factors contribute to the interference of excessive nitrogen fertilizer on phosphorus and potassium absorption, including altered soil pH, nutrient competition, variable nitrogen forms, disrupted microbial activity, crop-specific demands, and environmental conditions. To optimize agricultural productivity, it is essential to apply nitrogen fertilizers judiciously based on crop needs and soil conditions, preventing relative deficiencies in phosphorus and potassium.