
In the process of using sodium humate fertilizer, you need to pay attention to the following aspects to ensure its effectiveness and safety:
I. Preparation before use
Understand the product characteristics:
Sodium humate fertilizer has many functions, such as improving soil structure, increasing the utilization rate of fertilizer and promoting crop growth. Before use, you should know in detail about the product characteristics and scope of application.
Choose the right product:
According to the needs of crops and soil conditions, choose the right sodium humate fertilizer. Pay attention to check the purity, water solubility and other indicators of the product to ensure product quality.
Determine the dosage:
Reasonably determine the dosage of sodium humate fertilizer according to the growth stage of the crop and soil fertility condition. Excessive use may lead to soil salinization or crop growth inhibition.
II. Precautions during use
Dissolution and dilution:
Before use, it is recommended to dissolve or dilute sodium humate fertilizer with fresh water first to improve its utilization rate and reduce direct stimulation to crops.
Fertilizer application method:
Sodium humate fertilizer can be applied by soil watering, foliar fertilization, drip irrigation, sprinkler irrigation and other ways. The specific method should be determined according to factors such as crop type, growth stage and soil conditions.
When soil watering, sodium humate fertilizer can be mixed in the irrigation water, so that the plant roots have full contact with the fertilizer.
For foliar application, the fertilizer should be diluted and sprayed on the crop leaves, taking care to avoid high temperature hours and strong direct light to avoid damage to the leaves.
Avoid mixing with other substances:
Sodium humate fertilizer is alkaline, should avoid mixing with drugs or acidic substances (especially organic acid products) that are prohibited for alkaline substances, so as to avoid chemical reaction to reduce fertilizer efficiency or produce harmful substances.
Pay attention to the concentration:
The concentration of sodium humate fertilizer should be moderate, too high or too low may affect the fertilizer effect. Generally speaking, the appropriate concentration for the early growth period is 100 mg/liter, while the concentration in the mid- and late-growth period can be varied within the range of 100 to 500 mg/liter.
Pay attention to the application temperature:
The effect of sodium humate fertilizer is affected by temperature, and generally the appropriate temperature requires more than 18 hours to be effective. When using sodium humate fertilizer at low temperature, the effect may be slower; while when using it at high temperature, care should be taken to prevent the occurrence of fertilizer damage.
Observe crop reaction:
In the process of use, the growth of crops should be closely observed, such as found abnormalities should be promptly adjusted fertilization program or stop using.
Third, the management after use
Soil monitoring:
Regular monitoring of the soil to understand the soil fertility and pH and other indicators of change, in order to adjust the fertilizer program in a timely manner.
Storage management:
Unused sodium humate fertilizer should be stored in a cool and ventilated place, waterproof and sunproof to avoid moisture deterioration.
To sum up, when using sodium humate fertilizer, you need to pay attention to product selection, dosage determination, fertilizer application method, avoiding mixing, use of concentration and temperature control and crop reaction observation. Through scientific and reasonable use and management, the advantages of sodium humate fertilizer can be fully utilized to promote crop growth and improve yield.