Double Sided Printing Steel Tape
This kind of measuring ruler is a steel tape with scale numbers printed on both sides, which is very cost-effective. This kind of tape measure shell can be customized, not limited to any style, focusing on the measuring tape, which is a real selling point.
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Second, avoid applying chlorine-containing fertilizer. Watermelon belongs to the avoidance of chlorine crops. The application of chlorine-containing fertilizers will affect the accumulation of sugar and make the taste of the melons lighter.
Three bogey soil layer fertilization. Watermelon top dressing should pay attention to deep application, and timely cover soil after application, especially nitrogen fertilizer. If applied, nitrogen is easy to volatilize to produce ammonia gas, which harms the leaves and reduces fertilizer efficiency.
Four bogey in the rainy days. On a rainy day, the air humidity is high and the soil moisture content is high. At this time, fertilization is not only easy to lose the fertilizer, but also easily causes the watermelon to grow.
Five bogey fertilization sites are too close to the roots. The fertilization site of watermelon is generally about 10cm away from the main root. It is too close to burn roots.
Six bogey when the drought is topdressing. The weather is dry and the soil moisture content is low. At this time, the application of chemical fertilizer will cause the cytoplasmic solution of the root cells to penetrate outward, causing the plant to be physiologically dehydrated and die.
One should not apply a large amount of nitrogen fertilizer. Fertilization of watermelon should pay special attention to the combination of nitrogen, phosphorus and potassium. If a large amount of nitrogen fertilizer is applied alone, the plant is very easy to grow, which is not conducive to flowering and melon development.
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