1、Potassium budget for inland, saline water shrimp ponds in Alabama
Additions of potassium fertilizer increased the potassium concentration of pond water to an average of about 40 mg/L (Table 4). The average concentration of potassium in pond water was used for estimating loses of this ion in seepage and overflow.
2、Potassium–sodium interactions in soil and plant under saline‐sodic conditions
Although most soils have adequate amounts of K +, in many soils available K + has become insufficient because of large amounts of K + removal by high-yielding crops. This problem is exacerbated under sodic or saline-sodic soil conditions as a consequence of K + -Na + antagonism.
3、Effect of saline irrigation water on the leachability of salts, growth and chemical composition of wheat (Triticum aestivum
Wheat was grown in pots filled with saline-sodic soil which were irrigated either with normal or saline water. Potassium and P fertilizers were applied at two levels. Results indicated that growth of wheat plants was impaired by saline irrigation resulting in a decreased grain and dry matter yield.
4、Optimizing Potassium Application for Hybrid Rice (Oryza sativa L.) in Coastal Saline Soils of West Bengal, India
The present study assesses the response of hybrid rice (variety Arize 6444) to potassium (K) application during rainy (wet) seasons of 2016 and 2017 in coastal saline soils of West Bengal, India.
Potassium Fulvate Alleviates Salt–Alkali Stress and Promotes Comprehensive Growth of Oats in Saline–Alkali Soils of the Qaidam Basin
Soil salinization limits global agricultural sustainability, and extensive areas of saline–alkaline soils on the Qinghai–Tibet Plateau remain underutilized. Against this backdrop, this study evaluated the effects and ecological regulatory mechanisms ...
External potassium (K+) application improves salinity tolerance by promoting Na+
One of the feasible options lies in applying potassium fertilizers, which could be beneficial to plant growth by replacing Na+ with K + in the exchangeable sites of clay particles.
The effects of potassium fertilization on waterâ use efficiency in crop plants<link href='#fn1'></link><link href='#fn2'></link>
The availability of water together with the nitrogen supply is a key factor in plant growth. It is well recognized that only with ample water supply can crop plants effectively exploit soil and fertilizer nitrogen resources.
A novel low energy fertilizer driven forward osmosis desalination for direct fertigation: Evaluating the performance of fertilizer draw
Based on the volumetric mass balance and the osmotic equilibrium, all fertilizer draw solutions are shown to extract water from saline feed water as long as the fertilizer draw solution can generate osmotic potential much higher than the feed water.
Growth and nutrient uptake of tomato in response to application of saline water, biological fertilizer, and surfactant: Journal of Plant Nutrition: Vol 40
The importance of using low-quality water, such as saline waters, for food production has been increased in the recent decades. An experiment was conducted to evaluate the effect of diluted seawater (electrical conductivity (EC) of 6 dS m −1) on growth and nutrient uptake of tomato.
"Fertility and Saline Water Management Interactions on Plant Growth and" by Robin R. Drysdale Rodriguez
The application of liquid 10-34-0 fertilizer produced a statistically significant increase in all yield parameters at every level of salinity, and every irrigation frequency studied. Nitrogen fixation was found to decrease as irrigation water salinity increased.
Reasons for Adding Potassium Fertilizer to Saline Water
1. Chemical Properties of Salt
The "salt" in saline water refers to sodium chloride (NaCl), an electrolyte composed of sodium ions (Na⁺) and chloride ions (Cl⁻). Sodium chloride, the primary component of table salt, is widely found in nature, such as seawater, well water, and soil.
2. The Role of Potassium Fertilizer
Potassium is one of the essential macronutrients for plant growth and plays a critical role in plant development. It promotes the construction of cell walls, enhances stress resistance, and improves a plant’s ability to withstand adverse conditions. Additionally, potassium facilitates protein synthesis, strengthens photosynthesis and respiration, and aids in the accumulation of carbohydrates. It also regulates water balance within plants, improving drought and waterlogging tolerance.
3. The Role of Potassium in Plants
Potassium is primarily distributed in roots, stems, and leaves, especially in root tissues, as potassium ions move slowly within plants and tend to accumulate in roots. After entering a plant, potassium ions are transported upward through the xylem to stems and leaves, then redistributed downward via the phloem to roots, participating in various physiological processes.
4. The Relationship Between Salt and Potassium
When saline water contains high levels of sodium chloride, sodium ions compete with potassium ions for water and nutrients within plants. Due to their rapid migration speed, sodium ions quickly occupy spaces in plants, leading to relative deficiencies in potassium ions. To maintain normal physiological activities, it is necessary to add potassium-rich fertilizers to saline water to compensate for this不足.
5. Steps to Add Potassium Fertilizer to Saline Water
- Select Potassium Fertilizer: Choose appropriate potassium fertilizers (e.g., potassium sulfate, potassium nitrate) based on plant needs.
- Dilute: Dilute the selected fertilizer according to recommended ratios (typically 0.5–1 gram of fertilizer per liter of water).
- Mix: Thoroughly blend the diluted fertilizer solution with saline water to ensure even distribution.
- Apply: Evenly spray or irrigate the mixed solution onto plant roots or foliage, avoiding overapplication to prevent damage.
- Monitor Results: Observe plant growth and soil moisture closely to adjust fertilization strategies as needed.
6. Precautions
- Different plants have varying potassium requirements; understand specific needs before application.
- Excessive fertilization may cause root burn or salt damage; follow the "small amounts, multiple applications" principle.
- Handle fertilizers safely to avoid direct contact, especially with children and pets.
- Clean up residual fertilizer solutions promptly to prevent environmental or human contamination.
Adding potassium fertilizer to saline water addresses potassium deficiencies in plants, improving growth quality and yield. By applying potassium-rich fertilizers rationally, plants’ nutritional needs are met, promoting healthy development. moderation is critical to avoid negative impacts on plants and the environment.
