In the lifetime of a watermelon, it absorbed an average of 12.39 grams of potassium, 1.2 times and 3.4 times that of ammonia and phosphorus, respectively. In the absence of potassium, the resistance of the plants is reduced, the transporting tissues are weakened, and the synthesis and transportation of nutrients are hindered, which in turn affects the accumulation of sugar in the fruits, and the yield and quality of the watermelon are significantly reduced. The specific performance is as follows: the plants grow slowly, the vines are thin, the leaf surface is wrinkled, the edges of the old leaves turn brown and die, and gradually expand inwards. In severe cases, it will develop toward the heart, turning it into a light green, even leaf margins. There was also a scorching appearance; the fruit setting rate was very low, the melons that had been sitting were small, and the amount of sugar was not high. Remedial measures: First, use 5-10 kg of potassium per acre (K deficiency at seedling stage, 3-5 kg ​​per mu; 8-10 kg per acre after extending vines) or 30-60 kg of plant ash; It is sprayed with 0.4%-0.5%** potassium solution.
Fibreglass Geogrid ( FG) Stitched With Nonwoven Geotextile Impregnated by Bitumen: Ultimate tensile Strengths from 8kN/m to 400kN/m . Biaxial, flexible high modulus Polyester geogrid stitched with nonwoven geotextile together impregnated with bitumen using the knitting process .
1. It reinforce old asphalt concrete road surface and asphalt layer, and prevents damage ;
2. It is used for rebuilding cement concrete road surface into composite road surface and restraining reflection caused by block contraction .
3. It is used in road expansion and improvment project and crack caused by old and new combination position and uneven sedimentation ;
4. It is used in soft soil base reinforcement treatment , is favorable for soft soil water separation and concretion,restrains sedimentation effectivly,distributes stress uniformly and improve overall strength of road base;
5. It is sued for preventing contraction crack caused by new road semi-rigid base layer,and reinforces and prevents road surface crack caused by foundation crack reflection.
Geotextile Retaining Wall, Fiberglass Geogrid With Nonwoven, Fiberglass Geogrid Feicheng Lianyi Engineering Plastics Co., Ltd , https://www.lianyigeosynthetics.com