Scientific application method of potassium fertilizer

1. Fertilize the soil. Potassium fertilizer has no special requirements on soil. Generally speaking, soils such as sandy soil and red loam soil are more potassium-deficient, and the effect of applying potassium fertilizer is more significant.
2. Fertilize the crop. Potassium crops such as legume green manure, bananas, potatoes, tobacco leaves, etc. require more potassium, and the application of potassium fertilizer also has a significant effect, which not only improves yield, but also improves crop quality. The general crop seedling stage is the critical period of potassium, which is most sensitive to potassium deficiency. Therefore, potassium fertilizer is generally used as a base fertilizer, especially for crops with short developmental stages. The mobility of potassium in soil is smaller than that of nitrogen. Potassium fertilizer must be applied to the soil layer with the strongest root distribution to facilitate crop absorption.
3. Fertilization due to climate. Potassium fertilizer efficiency is related to climate. When low temperature, crops often lack potassium, and potassium application has a good effect.

4. Cooperate with other fertilizers. The effect of potash fertilizer efficiency and other fertilizer supply conditions, only nitrogen fertilizer and phosphate fertilizer can be coordinated supply, and the application of potassium fertilizer has a good effect. The use of potassium-rich organic fertilizers can reduce the amount of potassium fertilizer.

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Overhead Sectional Door

Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.

The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.

The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147

For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.

A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.

The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.

Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.

Overhead Sectional Door,Overhead Sectional Garage Door,Automatic Overhead Sectional Door, Overhead Insulated Garage Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com