1、The Correct Combination and Balance of Macronutrients Nitrogen

The best combination of nitrogen, phosphorus, and potassium is critical for maintaining nutrient management plans in developing tailored fertilization strategies that optimize potato growth and quality under diverse growing conditions.

2、Phosphorus balancing for optimal crop yields

Matching phosphorus fertilizer applications to optimal thresholds required by crops mitigates the exhaustion of phosphorus resources and promotes agricultural sustainability.

3、Optimal Timing for Nitrogen Fertilization in Sweet Potato Cultivation

Cultivation of the warmer region crop sweet potato (Ipomoea batatas (L.) Lam) in Northern regions can be an opportunity to benefit from climate warming, but there is little information of how growing season length interacts with agricultural practices such as nitrogen (N) fertilization.

4、(PDF) Potassium Fertilization in Potato

Potato is a high nutrient mining crop and needs higher fertilization for economic tuber production. Despite sufficient application of Nitrogen (N) and Phosphorus (P2O5), low replenishment and...

Fertilization with Phosphorus, Potassium, and Other Nutrients

Management strategies for P and K should be designed in the medium and long term, contrasting with mobile nutrients such as N, whose management strategies are designed in the short term, i.e., for each growing season.

Effects of Nitrogen, Phosphorus and Potassium Combined

Abstract The promotion of ridge-furrow and film mulching technology has led to a drastic increase in potato cultivation in the semi-arid northwest China. However, the optimal nitrogen (N), phosphorus (P) and potassium (K) combined fertilisation regime is still unclear under the planting pattern.

Optimizing nitrogen, phosphorus, and potassium fertilization regimes to

We hypothesized that a reasonable N, P, and K fertilizer application regimes under DRFM could improve maize yield and resources utilization efficiencies.

Frontiers

Increasing storage root number is a pivotal approach to enhance both storage root (SR) yield and appearance quality of sweet potato.

Optimal Fertilization Timing for Phosphorus in Crop Production

This article offers insights into the best practices for applying phosphorus fertilizers at the right time to enhance crop yield. It covers various fertilizer types and their effectiveness in meeting the phosphorus needs of different crops.

Optimizing Fertilization Strategies for High

By analyzing the roles of major nutrients such as nitrogen, phosphorus, and potassium, along with trace elements like zinc and magnesium in potato growth, the research underscores the impact of precision fertilization techniques on enhancing nutrient use efficiency.

Sweet potato (also known as glycine root, yam, or potato) is a vital crop serving both food and vegetable purposes. Proper application of phosphorus and potassium fertilizers during its cultivation significantly enhances yield and quality. Below are detailed recommendations for fertilizing sweet potatoes with phosphorus and potassium:

I. Fertilization Principles

1. Balanced Fertilization: Sweet potato growth requires synergistic effects of nitrogen (N), phosphorus (P), potassium (K), and other nutrients. Fertilization should follow a balanced approach to ensure equitable supply of all essential nutrients.

2. Combine Organic and Inorganic Fertilizers: Organic fertilizers provide abundant organic matter and micronutrients, while chemical fertilizers rapidly replenish nutrients. Combining both achieves optimal results.

3. Adjust Based on Soil Conditions: Nutrient requirements vary with soil types. Fertilization rates should be tailored to soil fertility, crop variety, and local practices.

II. Timing of Application

1. Base Fertilization: Early growth relies heavily on base fertilizers. Before planting, apply phosphorus and potassium evenly across the soil surface to promote root development. The dosage depends on the sweet potato variety, soil fertility, and regional practices.

2. Topdressing: Divided into two stages:

   • Seedling Stage: Focus on nitrogen to support vigorous growth.
   • Fruiting Stage: Prioritize phosphorus and potassium to enhance tuber development. Apply after roots begin forming.

III. Application Methods

1. Ditch Fertilization: Scatter fertilizers evenly into furrows (30–40 cm deep, 15–20 cm wide) and cover with soil. Suitable for organic fertilizers and some chemicals, this method reduces direct contact with young shoots.

2. Hole Fertilization: Bury fertilizer directly into the soil near roots. Efficient for chemicals, this minimizes nutrient loss. Hole size should match 1–2 times the root diameter, with depth at ~2/3 of the root length.

IV. Key Considerations

1. Avoid Over-Fertilization: Excessive application leads to overgrowth, reducing yield and quality. Control dosages strictly.

2. Integrate with Other Nutrients: Coordinate phosphorus/potassium with nitrogen and other fertilizers to ensure comprehensive nutrient supply.

3. Soil-Specific Adjustments: Customize fertilization based on soil tests and crop responses to guarantee healthy growth.

rational use of phosphorus and potassium fertilizers is critical for improving sweet potato yields and quality. By adhering to these principles, timing, methods, and precautions, farmers can effectively optimize crop performance.