Scientific rational application of bacterial fertilizer
"Bacterial fertilizer" is a non-polluting new compound biological fertilizer developed from the natural nitrogen-fixing bacteria species, which has been scientifically formulated and combined. Pay attention to the following aspects during the application process:
For soils with high sulfur content and rust fields, it is not advisable to apply biological fertilizers because sulfur fertilizers kill biological bacteria. For paddy paddy fields, it is generally not advisable to apply them. The effect of spraying is more obvious.
The optimum temperature for applying the bacterial fertilizer is 25 to 37 ° C, lower than 5 ° C, higher than 45 ° C, and the application effect is poor. It is not suitable for the application of crop fields under high temperature, low temperature and drought conditions. In addition, some have to master the humidity. For example, the optimum soil moisture content of nitrogen-fixing bacteria is 60% to 70%.
Strain fertilizer should not be mixed with fungicides, insecticides, herbicides and sulfur-containing fertilizers (such as potassium sulphate) and straw ash, because these drugs and fertilizers are easy to kill bright red bacteria. Fertilizer should be applied first, and then weeded and weeded after 48 hours. If seed dressing, avoid mixing with seeds that have been mixed with fungicide. It should also be prevented from being mixed with unfertilized farmyard manure.
For the field where chemical fertilizer has been applied for many years, the application of biological fertilizer can not reduce the application of chemical fertilizers and organic fertilizers in large quantities. Because crops are dependent on chemical fertilizers, the replacement of chemical fertilizers with biological fertilizers cannot be adapted at once. Therefore, the substitution amount should be 30%, 40%, 60% in the first, second and third years respectively. Phosphorus and potassium fertilizers can only be supplemented and cannot be reduced.
The biological bacterial fertilizer is not a quick-acting fertilizer, and it is applied best in the nutrient critical period of the crop and 7-10 days before the nutrient mass absorption period.
Source: Chongqing Xingnong Net
Total 1 | <First <Prev 1 Next> Last> |
share to: