1、Influence of co

Available data suggests that balancing P, K and S availability with N can significantly increase NUE and mitigate the protein dilution. However, less supporting data is available than expected and more research is needed to confirm the impact of nutrient interactions on NUE in wheat.

2、Roles of nitrogen, phosphorus, and potassium fertilizers in carbon sequestration in a Chinese agricultural ecosystem

To enhance cereal production and meet the escalating food demands of the increasingly affluent population in China, the application of nitrogen (N), phosphorus (P), and potassium (K) fertilizers to agricultural soils has risen significantly.

3、Nitrogen, Phosphorus, and Potassium Flows through the Manure Management Chain in China

Herein, we present a detailed analysis of the nutrient flows and losses in the “feed intake–excretion–housing–storage–treatment–application” manure chain, while considering differences among livestock production systems.

4、RESPONSE OF MAIZE TO FOLIAR VS. SOIL APPLICATION OF NITROGEN–PHOSPHORUS–POTASSIUM FERTILIZERS: Journal of Plant Nutrition: Vol 25 , No 11

The aim of the present study was to determine the efficiency of different forms of nitrogen–phosphorus–potassium (NPK) fertilizers applied to maize (Zea mays L.), either to the soil or to the leaves.

Effect of direct nitrogen and potassium and residual phosphorus fertilizers on soil chemical properties, microbial components and maize yield

Long-term fertilization resulted in decreased total organic C (TOC) and basic cation contents, and had an acidifying effect on soil. The decrease in TOC was greater in simple fertilizer treatments (N, P, or K) whereas basic cation contents and pH declined more in balanced fertilizer treatments (NPK).

Effects of potassium fertilization on winter wheat under different production practices in the North China Plain

Four field experiments were conducted in the NCP. The factorial study compared three levels of K fertilization (K0 = no K; K1 = medium K rate; K2 = high K rate) and two levels of production practices: conventional (CP) and high yielding (HP).

Optimization of nitrogen and potassium nutrition to improve yield and yield parameters of irrigated almond (Prunus dulcis (Mill.) D. A. webb

Nitrogen and potassium are the nutrients required in largest amounts by an almond crop. Nitrogen deficiency reduces photosynthesis and plant growth and in severe N deficiency fruit drop may occur and nut quality is affected by reducing protein content.

Higher Fertilizer Inputs Increase Fitness Traits of Brown Planthopper in Rice

In this study, we investigated the effects of three principal fertilizer components (nitrogen, phosphorus and potassium) on the development of potted rice plants and their effects on...

Yield response of wheat to nitrogen and potassium fertilization

potassium showed significant effects on plant height of wheat. The plant height incre sed gradually with increasing levels of nitrogen and potassium. On average, among the N treatments, maximum plant height of 88 cm was obtained with the application of N at 150 kg ha-1 which was statistically similar to 86.4 cm produced with 120 kg N ha-1,

Influence of potassium fertilization and foliar application of zinc and phosphorus on growth, yield components, yield and fiber properties of Egyptian

Potassium plays a particularly important role in cotton fiber development and a shortage will result in poorer fiber quality and lowered yields (Cassman et al. 1990). Potassium is a major solute in the fiber (single cells) involved in providing the turgor pressure necessary for fiber elongation.

Nitrogen-potassium fertilizer is a commonly used agricultural product designed to replenish nitrogen (N) and potassium (K) in soil. Both elements are essential nutrients for plant growth, playing critical roles in development, yield, and stress resistance. Nitrogen fertilizers promote stem and leaf growth and enhance photosynthetic efficiency, while potassium fertilizers improve disease resistance, drought tolerance, and cold hardiness in plants.

Key Components of Nitrogen-Potassium Fertilizer:

1. Nitrogen Fertilizers These compounds provide nitrogen, which is vital for plant growth. Common examples include:

   • Urea: Contains ammonia and carbon, converted into usable nitrogen via microbial decomposition.
   • Ammonium Nitrate (NH₄NO₃): Supplies nitrogen in two forms (ammonium and nitrate).
   • Ammonium Phosphate: Combines nitrogen with phosphorus for dual nutrition.

2. Potassium Fertilizers Potassium-based compounds support root development and stress resilience. Key types include:

   • Potassium Sulfate (K₂SO₄): Provides potassium while improving soil sulfur levels.
   • Potassium Chloride (KCl): A cost-effective source of potassium.
   • Potassium Nitrate (KNO₃): Offers both potassium and nitrogen.

3. Phosphorus Fertilizers Phosphorus (P) is crucial for energy transfer and photosynthesis. Major forms include:

   • Superphosphate (Ca(H₂PO₄)₂): A rapidly soluble phosphorus source.
   • Dicalcium Phosphate (CaHPO₄): Slow-release phosphorus.
   • Tricalcium Phosphate (Ca₃(PO₄)₂): Enhances long-term soil phosphorus reserves.

4. Micronutrient Fertilizers These supply trace elements required for plant metabolism:

   • Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu): Applied as sulfates or chelates to prevent deficiencies.

5. Organic Fertilizers Natural materials rich in nutrients and soil-enhancing properties:

   • Animal Manure, Crop Straw, Composted Residue: Release N, P, K slowly and improve soil structure, water retention, and microbial activity.

6. Compound Fertilizers Balanced blends of N, P, K, and micronutrients tailored to crop needs. Examples:

   • NPK Mixtures: Formulated for specific crops (e.g., 15-15-15).
   • Trace Element-Enriched Fertilizers: Combine macro- and micronutrients for optimized uptake.

Nitrogen-potassium fertilizer comprises a mix of nitrogen, potassium, phosphorus, micronutrients, organic matter, and compound formulations. Proper application optimizes nutrient use efficiency, supports healthy plant growth, and boosts crop quality and yield. Balancing these components based on soil tests and crop requirements is key to sustainable agriculture.