The best use of water soluble fertilizer!

Compared with traditional superphosphate and granulation compound fertilizer, water soluble fertilizer has obvious advantages.It is a kind of quick-acting fertilizer, with good water solubility and no residue, which can be completely dissolved in water and can be directly absorbed by the root and leaf surface of crops.Water soluble fertilizer is combined with micro-sprinkling irrigation and drip irrigation in the facility agriculture, so as to achieve the integration of water and fertilizer and achieve the efficiency of the provincial workers.Nowadays, with the increasing shortage of water resources, the application of water-soluble fertilizer is one of the measures to increase agricultural efficiency and increase farmers' income.This paper introduces seven technical points of water soluble fertilizer application:

1. Avoid direct impact.

Take secondary dilution water soluble fertilizer is higher than general compound fertilizer nutrient content, consumption is relatively small, directly applied easily to burn seedlings root damage, the phenomenon such as weak seedling rootstocks, secondary dilution is not only conducive to fertilizer applied evenly, can also improve the fertilizer utilization ratio.

2. A small amount of application.

Because of the water soluble fertilizer available sex is strong, difficult to persist in soil for a long time, a few times of fertilization is one of the most important principle, conform to the characteristics of the continuous absorption of nutrient uptake by plant roots, reduce disposable leaching loss caused a large number of fertilization.The average amount is 3 ~ 6 kg.

3. Pay attention to nutrient balance.

Water soluble fertilizer is generally applied to water, or mixed into water, with irrigation (drip irrigation, spray irrigation).It needs to be reminded that, when applying drip irrigation, the nutrient supply dependence of soil is reduced because of the dense growth and large amount of crop root system, and more depends on the nutrient provided by drip irrigation.If the water soluble fertilizer formula is unbalanced, it will affect the growth of crops.In addition, water soluble fertilizer should not be applied to traditional irrigation methods such as flood irrigation or water irrigation to avoid waste and uneven use of fertilizer.

4. Cooperate with the application.

Water soluble fertilizer is quick - acting fertilizer, usually only as a fertilizer.Especially in conventional agricultural production, water soluble fertilizer cannot replace other conventional fertilizers.In order to reduce the cost and give full play to the advantages of various fertilizers, it is necessary to combine the basic fertilizer with the fertilizer, organic fertilizer and inorganic fertilizer, water soluble fertilizer and conventional fertilizer.

5. Use or mix with non-alkaline pesticides as far as possible.

When vegetables appear lack of vegetable or root system grows bad, many farmers use the method of spraying water soluble fertilizer to alleviate.In this case, water soluble fertilizer should be applied separately or mixed with non-alkaline pesticide, so as to prevent metal ions from reacting and precipitate, resulting in leaf fertilizer or drug damage.

Avoid excessive irrigation.

When the main purpose of irrigation is fertilization, the root depth can be wet.The root depth of different crops is very different, and the soil can be excavated at any time to understand the depth of the root layer.Excessive irrigation not only wastes water, but also causes nutrients to be lost under the root layer. Crops cannot be absorbed and waste fertilizer is wasted.In particular, urea and nitrate nitrogen fertilizer (such as potassium nitrate, calcium nitrate, nitrophosphate fertilizer and water-soluble fertilizer containing nitrate nitrogen in water soluble fertilizer) are easily lost with water.

7. Prevent surface salt accumulation.

The long-term use of drip irrigation in greenhouse or greenhouse will cause salt accumulation in the surface and affect root growth.The salinity can be removed by subfilm drip irrigation.