During the production of vegetables in protected areas, due to excessive fertilization year after year, some of the residual components of fertilizers not absorbed by vegetables will remain in the soil and will accumulate in the soil, causing damage to the soil and causing soil salinization and acidification. , Resulting in soil compaction, reduced permeability, easily lead to a variety of vegetable diseases. In the vegetable production process, by increasing the microbial fertilizer and reducing the application amount of chemical fertilizers, the soil can be obviously improved, the production cost can be reduced, and the quality of vegetables can be improved. This is because microbial fertilizer can activate the soil and decompose the nutrients fixed by the soil during the application process, thereby increasing the absorption and utilization of fertilizers. At the same time, microorganisms in microbial fertilizers can produce plants during growth and reproduction. Auxin stimulates crop growth to improve the quality of vegetables. Secondly, microorganisms can inhibit the occurrence and development of various soil-borne diseases in the process of growth and reproduction. It also has a strong inhibitory effect on root-knot nematode diseases. It is a new type of fertilizer that is non-toxic, economical and environmentally friendly and is worthy of being popularized and applied in the production of vegetables in protected areas. In the rational application of microbial fertilizer should pay attention to the following points:
1. Select a brand-name product with a complete document containing high bacteria.
2. Microbial fertilizers have low nutrient content and must be applied with other fertilizers. In the application of microbial fertilizers, microbial organisms in microbial fertilizers have the functions of nitrogen fixation, phosphate solubilization, potassium release, bacteriostasis, soil activation, and nutrient utilization. Therefore, after applying these fertilizers, the application amount of chemical fertilizers can be appropriately reduced.
3. The microorganisms in microbial fertilizers need to be grown and propagated in a suitable soil containing water, so the soil moisture cannot be too dry or too wet.
4. Microbial fertilizers cannot be used with bactericides.
5. Microbial fertilizers, whether they are basal or topdressing, cannot be exposed on the soil surface. Due to sunlight, the activity of microorganisms is reduced.
6. Pay attention to the date of production, and the activity of microorganisms in microbial fertilizers that have been placed for too long has declined.
7. The ground temperature in the winter and spring protected areas is low, and the growth and reproduction of low-temperature microorganisms slow down and their activity declines. The ground temperature should be increased and covered with straw, which will help increase ground temperature and enhance microbial activity.
Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
Many people may have heard of the AHD Four in One Cameras/ AHD Camera/ AHD Cameras/ AHD Camera CCTV/ AHD HD Camera/ Analog Camera/ Analog Camera CCTV, so what are the AHD Four in One Cameras? Let me introduce to you in details.
AHD means Analog High Definition. The AHD camera/AHD Four in One Cameras is an analog high-definition camera, and its transmission signal is a high-definition analog signal; which means that the AHD camera, based on the AHD protocol, progressively scanned high-definition video, by analoging the transmission of the coaxial cable.
The AHD technology can realize the reliable ultra-long distance(500 meters) transmission of the high-definition video signals without changing the existing analog transmission lines. The AHD technology adopts the advanced Y/C signal separation and analog filtering technology, which can effectively reduce color noise in the high-frequency area, and make the image restoration better. Compared with the traditional analog high-definition products, the monitoring image quality of the AHD camera has a great improvement, and the highest definition can be equivalent to the full HD level of the network HD 1080P.
AHD follows the path and method of the Analog Standard Definition transmission, which can reduce the complexity of the construction and deployment, the cost and the maintenance complexity of the the auxiliary materials, and the technical requirements for construction personnel. The AHD technology is very suitable for the upgrade and transformation of the old system, because it can easily upgrade the standard definition to the high definition without changing the original system. In addition, The AHD Camera can reach the high-definition quality at the standard-definition price, which has created a lot of demand in both the civil and the industrial markets.
Let me introduce some advantages of the AHD Four in One Cameras as follows:
1. Clearer: advanced bright color separation, signal filtering, 3D noise reduction technology, higher image clarity, better image restoration.
2. Long transmission: the coaxial transmission common 75-5 line can reach 500 meters.
3. No delay: the front-end data of the AHD Four in One Cameras without encoding will be directly compressed and delivered to the back-end DVR, which makes the video full real-time and high-fidelity.
4. Good compatibility: compatible with the ordinary D1/960H, the analog peripheral equipment (including the distributors, the matrixes, etc.).
5. Easy to operate: support the OSD menu design, you can set what you need and want.
6. Good quality and low price: ordinary analog price, but high-definition quality product.
7. High integration: AHD front-end chip price, high-definition quality products.
8. Open standards: the third-party open standards, compatible with other manufacturers` AHD products; which can accelerate the market advancement.
AHD Camera, AHD Cameras, AHD Camera CCTV, AHD HD Camera, Analog Camera, Analog Camera CCTV
SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com