After the anaerobic fermentation of the digester through the digester, a variety of water-soluble nutrients are relatively enriched, which is a kind of quick-effect water and fertilizer. The application of biogas slurry to foliar fertilization of fruit trees has the following advantages: First, it is available on demand and it is easy to use. The second is quick results and high utilization. Within 24 hours, the leaves can absorb 80% of the spray volume, which can timely supplement the demand of nutrients during the critical period of fruit tree growth; spraying during the leaf growth stage can enhance the ability of photosynthesis, which is conducive to the formation and differentiation of flower buds; To ensure the nutrients needed during the flowering period and increase the fruit setting rate; Spraying during fruit growth period can promote fruit enlargement and increase yield. Third, there is a certain prevention and mitigation effect on fruit tree pests and diseases. Such as the use of biogas water and fertilizer on fruit tree aphids, spider mites and other prevention and treatment, within 48 hours can reduce pests by more than 50%. The use of biogas slurry plus appropriate amount of pesticides has better control effect and even exceeds the control effect of conventional chemical pesticides. The fourth is to save money.
First, biogas slurry foliar fertilizer technology
1. The biogas slurry after anaerobic fermentation for more than 45 days is taken out from the water pressure of the biogas digester and can be sprayed after 2-3 days; the biogas slurry of the Ningxiaoxiaokang type biogas digester and the upflow type floating mask biogas digester passes through. The flow tubes overflow into the storage tanks and can be discharged from the storage tanks.
2, the frequency and amount of fertilizer: leaf spray fertilizer is usually once every 10 days. The amount of spray can be based on the size of the crown, the nutritional status of the tree. The growth potential is more varied and the growth tends to be less; the aging trees are more often used, and the young trees are less likely to be planted;
3, application period: fruit trees before and after each growth period can be sprayed.
4, water and fertilizer concentration: foliar spray fertilizer using pure biogas slurry is better, but when the temperature is high should be added appropriate amount of water diluted after spraying.
5. Mixed application with chemical fertilizers: For fruit trees with large age results, due to more nutrient consumption, 0.05-0.1% urea can be added to the biogas slurry to increase nitrogen concentration and supplement nutrients, which can effectively increase the amount of flower buds in the coming year. For trees that are young and growing too busy, and trees that bear less fruit, then 0.2-0.5% of phosphorus and potassium fertilizer should be added to the spray to promote the formation of flower buds in the following year.
6. Note: 1 Do not spray at high temperatures at noon. Due to high temperatures, rapid evaporation, poor results, but also easy to burn the leaves. 2 When spraying fertilizer, it is necessary to focus on the back of the leaves. Because the surface of the leaves is thick and horny, the fertilizer solution is not easily absorbed and the back of the leaves is easily absorbed.
Second, biogas fertilizer application method
Biogas fertilizer is a kind of organic fertilizer containing both nitrogen, phosphorus, and potassium. It contains a lot of volatile ammonia nitrogen. If the application method is improper, it is easy to lose fertilizer efficiency, and can not achieve the desired effect of increasing production. The application technique is:
1, with the out with the application, should not be long-term: that is, from the digester to take out directly to the field or the soil, if busy, but can only pile up outside the pool for a day or two, a long time, quick nitrogen Will volatilize. Experiments have shown that the methane slag is dried and stored in the open air, with about 65% loss of total nitrogen and 87% loss of ammonia nitrogen.
2. Biogas slag fertilizer should be used as a base fertilizer deep application: it should be applied to paddy fields, preferably when it is applied in paddy fields, so that the combination of mud and fertilizer can be applied in an amount of about 2000 kg per mu; when applied to dry soil, it is best to use them in a centralized manner. , furrow, and then cover a layer of soil about 10 cm thick to reduce the volatilization of available nutrients.
3, biogas water and fertilizer should be used as top dressing: Application, should be based on the quality of biogas fertilizer and crop growth, mixed with water thinning, so as not to damage the young roots, young leaves.
4. Combined application of biogas fertilizers and chemical fertilizers: Ammonia and ammonium bicarbonate are nitrogen fertilizers with low production costs. They are alkaline and easily lose their volatile components. The combination of biogas slurry and ammonia water and ammonium bicarbonate can help dissolve the fertilizer in the soil, adsorb and stimulate the crops to absorb nutrients, and increase the utilization of chemical fertilizers. For every 50 kilograms of biogas fertilizer, 0.5-1 kg of ammonium bicarbonate or ammonia can be added.
The combined application of biogas slag and superphosphate can also improve the effect of superphosphate.
Gelatin Size 3 Empty Capsule
Gelatin Size 3 Empty Capsule,Mixed Green Empty Capsules,Size 3 Empty Gel Capsule,Medical Clear Empty Hard Gelatin Capsules
Ningbo Jiangnan Capsule Co., Ltd. , https://www.jncapsule.com