Improved techniques for soil chemical properties

 Different plants have different planting methods, scientific and rational planting management, in order to ensure quality and quantity, and increase income.

Improved techniques for soil chemical properties



    (1) It is not recommended to use cement or quicklime to schedule the pH of the soil.



    Some vegetable farmers choose cement and quicklime as schedulers to improve soil chemical properties. If the soil is severely acidified, the pH will definitely increase after the application of cement and quicklime, and the acidification of the soil on the surface is now treated. The downside of this approach is the inability to deal with salinization, which together severely damages the soil structure and constitutes deposits, leading to increased soil degradation.



    (2) To reduce the amount of chemical fertilizer, some alkaline fertilizers, such as magnesium hydroxide, can be used to dispose the pH of the soil to a certain extent, and together they will not constitute sediment.



    (3) Increase the use rate of fertilizer



    Soil chemical traits are closely related to fertilizer use rates. Nowadays, the use rate of many old shed compound fertilizers is extremely low. If some old sheds use compound fertilizer alone, the utilization rate can't reach 15%, which means that 100 kg of compound fertilizer is applied to the ground and can be absorbed by crops. As long as about 15 kg, the remaining 85 kg are ruined in vain. This part of the dregs will worsen the soil salinization or acidification. It is suggested that in the process of vegetable cultivation, the compound fertilizer is only used as the base fertilizer, and the top dressing is selected as the water-soluble fertilizer.



    The factors that determine the quality of water soluble fertilizer are: 1 material 2 production process 3 synergistic substances. The quality of the material is very important, and the synergistic substance is the central substance of the resolution rate. For example, Iprun's Phosphorus Enhancement Skills (IPE) in the Netherlands not only ensures the absorption of phosphorus in water-soluble fertilizers, but also activates soil-fixed phosphorus to make it a fast-acting phosphorus, greatly improving the utilization rate of crop roots. ;



    For some old sheds, there is no shortage of fertilizer in the soil, and there are only a lot of NPK. Now the key question is: how to keep the nitrogen, phosphorus and potassium in the soil, or the nitrogen, phosphorus and potassium fixed by the soil, a little bit It is activated a little bit to allow the crop to be absorbed, rather than being over-applied with chemical fertilizers.



    Topdressing principle: There is not much topdressing and absorption is the key. More chasing, the soil can not absorb and useless, the amount of chasing is appropriate, to ensure that the absorption rate of fertilizers has increased to 80%, the damage to the soil will be less and less, the soil itself has a buffering capacity, such soil The more you will be, the better.