2. Blindly pursue new differences. At present, there are many kinds of pesticides and fertilizers on the market, among which there are some pesticides with incomplete “three certificates†and fertilizers produced without license. Some farmers prefer to use newer pesticides and fertilizers. Pesticide is an example. Although the use of new pesticides can prevent the resistance of certain pests and diseases, many pesticides are mainly used as a compounding agent, which will increase the amount of use and cause phytotoxicity. At the same time, some pesticides and fertilizer products have not been promoted, and their effects are not well understood, and problems are prone to occur.
3. Too much belief in the efficacy of certain fertilizers and pesticides. Many fertilizers and pesticides have a scope of application. When purchasing pesticides and fertilizers, they will be bought and used as long as they are marked. If some pesticides are indicated to cure fungi, bacteria, viruses and other diseases, they will be purchased as good pesticides.
4. Excessive application. Many vegetable farmers use fertilizers and pesticides excessively. When using pesticides, the dosage is several times or even ten times that of common drugs, which often causes phytotoxicity. The application rate of organic fertilizer and chemical fertilizer is several times of the applicable amount, and often causes fat damage, which causes the roots of the crop to burn and affect the yield. At the same time, excessive application of one or several chemical fertilizers may cause salinization of the soil.
5. Improper use. When applying fertilizer, choose the appropriate method of use, such as spraying or spraying fertilizer at different growth stages, and whether the organic fertilizer is fully decomposed. If not applied in a proper manner, it will cause damage. If unfertilized chicken manure is applied, harmful gases can be generated and harmful bacteria in the feces can be carried into the shed.
6, can not prescribe the right medicine, reasonable fertilization. This is a common problem in the current vegetable production. Many vegetable farmers lack the necessary knowledge of plant protection and fertilizer, and cannot diagnose correctly after the onset of symptoms. Instead, they use drugs blindly and use fertilizer. Especially when vegetables lack certain nutrients, the wrong application of another fertilizer can not only cure the disease, but may increase the disease.
7, a variety of pesticides mixed use. A major problem currently exists is that many vegetable farmers use five to eight kinds of fungicides, such as micro-fertilizers, insecticides, and viricides, which not only affect the efficacy, but also cause phytotoxicity and affect crop growth.
Light & Medium Duty Slurry Pump
Product Introduction
Pump type ML is the standard light duty slurry pump which designed for the continuous pumping of light abrasive, light density slurries with minimal maintenance requirements. The maintain high efficiencies over the wear life of its components and typical used in process plant transfers, wet waste processes recycling-washing plant, sad plant duties, heavy minerals processing, mineral recovery and chemical process plant.
Product Features
-Wear resistant metal or rubber wet end parts, long service life
-Wide option for Impeller
-Various types of pump seals to suit different working condition
-Grease or oil lubrication
-Discharge branch can be positioned at intervals of 45 degree
-Can be installed in multistage series
-Easy to maintain
Pump Range:
-Size: 20mm ~650mm
-Head: 4~ 60m
Sludge Sewage Pumps,Mining Sludge Pumps,High Chrome Pump,Medium Duty Slurry Pump
SHIJIAZHUANG MUYUAN INDUSTRY & TRADE CO., LTD. , https://www.cnmuyuan.com