1、Optimized nitrogen and potassium fertilizers application increases stem

The results indicated that nitrogen and potassium fertilizer levels and their interaction treatments are facilitated lignin accumulation, achievement of lodging resistance and high yield.

2、Optimising Potassium Levels Improved the Lodging Resistance Index and

Potassium fertilisation significantly enhances the lodging resistance index by promoting dry matter accumulation in soybean. However, the physiological mechanisms through which potassium affects the lodging resistance index remain unclear, particularly under different planting systems.

3、Effects of potassium and silicon fertilization on lignin metabolism and

Investigating the regulatory effects of potassium and silicon nutrient coupling on lignin metabolism and lodging resistance of oil flax stems can provide a foundation for lodging resistance through fertilizer management.

4、Effects of straw return with potassium fertilizer on the stem lodging

Combining straw return with the reasonable application of potassium fertilizer enhanced the effectiveness of potassium fertilizer, increased lodging resistance, maize yield, and...

5、Optimising Potassium Levels Improved the Lodging

Lodging is a major factor limiting soybean yield in maize–soybean intercropping system (IS). Potassium fertilisation significantly enhances the lodging resistance index by promoting dry matter accumulation in soybean.

Optimized nitrogen and potassium fertilizers application

The results indicated that nitrogen and potassium fertilizer levels and their interaction treatments are facilitated lignin accumulation, achievement of lodging resistance and high yield.

Interactions of Potassium Fertilization and Straw Return in

This suggests that the appropriate potassium fertilizer application rate had a positive effect on improving stem lodging resistance, while excessive K input may negatively influence the increase in lodging resistance.

Effects of Potassium Fertilizer Application Rate on Lodging

In general, under the experimental condition of the study, 60 kg/hm 2 is the appropriate potassium fertilizer application rate, which could not only increase the yield, but also effectively enhance the lodging resistance of oil flax. Key words: oil flax, potassium, agronomic traits, lodging, yield CLC Number: S565.9

The Regulation of Nitrogen and Potassium Fertilizer Combination

The interaction of N and K fertilizers further improved the bending resistance and lodging resistance of the stem. The bending resistance increased by 42.24%-60.49%, and the lodging resistance index increased by 153.03%-312.61%.

Optimising Potassium Levels Improved the Lodging Resistance Index and

Potassium fertilisation significantly enhances the lodging resistance index by promoting dry matter accumulation in soybean. However, the physiological mechanisms through which...

Lodging resistance is a critical issue in crop growth, directly impacting yield and quality. In agricultural production, rational fertilization is a key measure to improve crop lodging resistance. Both potassium and phosphate fertilizers play vital roles in crop development. This article explores the relationship between lodging resistance and these two fertilizers, and how their optimal use can enhance crop resilience.

I. The Role of Potassium Fertilizer

1. Promotes Root Development: Potassium strengthens root systems, enhancing water and nutrient absorption. This reduces lodging risks associated with weak roots.

2. Improves Stem Strength: Potassium increases stem rigidity and elasticity, boosting resistance to compression and lodging.

3. Enhances Photosynthesis: It optimizes leaf photosynthesis, increasing carbohydrate production. This provides energy and nutrients for stems, improving structural integrity.

4. Balances Plant Hormones: Potassium regulates hormones like abscisic acid (ABA) and ethylene, which influence growth patterns. Balanced hormones promote healthy stem development and reduce lodging.

5. Boosts Stress Resistance: Potassium enhances drought, cold, and pest resistance, helping crops withstand environmental stresses that exacerbate lodging.

II. The Role of Phosphate Fertilizer

1. Supports Root Growth: Phosphate stimulates root development, improving nutrient and water uptake. Weak roots are a primary cause of lodging.

2. Strengthens Stems: Phosphate enhances stem thickness and flexibility, increasing resistance to bending and collapse.

3. Maximizes Photosynthesis: By optimizing leaf function, phosphate boosts carbohydrate synthesis, supplying stems with energy for structural support.

4. Hormonal Regulation: Phosphate influences hormone balance (e.g., ABA, ethylene), guiding healthy stem growth and reducing lodging tendencies.

5. Increases Stress Tolerance: Phosphate improves resilience to drought, frost, and diseases, lowering vulnerability to lodging under stress.

III. Interaction Between Potassium, Phosphate, and Lodging Resistance

1. Synergistic Effects: Potassium and phosphate work together. Potassium enhances root efficiency, improving phosphate uptake, while both strengthen stems. Combined use amplifies lodging resistance.

2. Optimal Ratios: Soil tests guide balanced N-P-K ratios. Excess potassium can disrupt soil osmosis, so dosages must align with crop needs.

3. Timing Matters: Apply potassium early to boost roots, and phosphate mid-season for growth spurts. Timing maximizes absorption and efficacy.

4. Application Methods: Potassium can be foliar-fed, basal-dressed, or drip-irrigated. Phosphate is typically basal- or furrow-applied. Tailor methods to soil and crop stages.

IV. Strategies to Improve Lodging Resistance

1. Balanced Fertilization: Use soil tests to match potassium and phosphate ratios to crop requirements.

2. Smart Irrigation: Maintain optimal soil moisture to prevent oversaturation or drought-induced weakness.

3. Crop Management: Space planting properly, avoid overcrowding, and perform timely weeding, soil aeration, and hilling.

4. Lodging-Resistant Varieties: Choose breeds with strong stalks or short, sturdy stature.

5. Pest Control: Reduce pathogens and pests that weaken stems.

6. Environmental Adjustments: Use shade nets, heaters, or coolers to buffer extreme weather.

7. Soil Improvement: Amend soil to enhance aeration and water retention, fostering healthy root systems.

8. Farmer Training: Educate on anti-lodging techniques and best practices.

9. Policy Support: Governments should incentivize scientific farming and research into lodging resistance.

10. Research Advancements: Invest in studies to develop new tools and fertilizer formulations for improved resilience.

Combining potassium and phosphate fertilizers with scientific irrigation, cultivation practices, and stress management significantly reduces lodging. Collaborative efforts among farmers, researchers, and policymakers are essential to advance agriculture and global food security.