Is it possible to apply zinc sulfate fertilizer to grow corn?
Zinc is one of the necessary nutrients for plants. Zinc deficiency in maize is prone to emergence of white flower seedlings, and when it is severely deficient in zinc, it stops growing and even seedlings die. In particular, for some sandy loam or high-pH fields, zinc fertilizer such as zinc sulfate should be added. Zinc fertilizer also has the effect of increasing production.
Fertilization method: Zinc dressing: Take 0.04~0.06 kg of zinc fertilizer, 1 kg of water, 10 kg of seed dressing, 2 to 3 hours of stuffing. Base application of zinc fertilizer: zinc fertilizer applied to the rhizosphere before sowing, applied 0.75 to 1 kg per acre. Spraying zinc fertilizer: if the leaf color is light during the seedling stage, zinc fertilizer can be sprayed and 0.1 kg per mu can be used.
Shanghai Agricultural Technology Promotion Center Senior Agronomist Lu Xuezhen
BIO scope S1 is a digital handheld scope used to record digital photographs and videos.
Advantage
1. Bigger LED Screen 3.5 inch with 720*480 resolution
2. Never hot lens with 300 thousand pixel
3. Disposable earmuff
4. examine external ear and middle ear
5. cerumen,otitis media, ear infections, perforation of tympanic membrane checking
6. Small & Light to hold, Easy to carry with aluminum box
7. Rechargeable Li-On battery to ensure 4 hours continuous working at least
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Specification
| Resolution | 720X480 |
| Light source | Natural white(LED) |
| LCD | 3.5 inches special LCD screen |
| Minimum color difference for different viewing angle | |
| File format | JPEG,BMP,AVI |
| Media | Micro SD flash card |
| Interface | 1 mini USB,1 AV-OUT,1 SD card slot |
| Power supply | rechargeable lithium battery |
| External power | 110V~220V AC 50/60HZ, Output DC 5V 500MA |
| Working time | 3 hours for continuous working |
| Charging time | 5 hours |
Digital Endoscope
Wuxi Biomedical Technology Co.,Ltd , https://www.wxbiomedical.com