The application of microbial fertilizer doubled corn economic benefit
The soil fertility level directly affects the fertilizer effect and economic benefit. This paper summarizes the Heilongjiang region of maize planting application of farmyard manure 5000 ~ 8000 kg basis, medium fertility soil, increased N * * fertilizer increase production effect is greater than the high soil fertility, fertilizer economic benefit is high. So, in the allocation of fertilizer should focus in plots inferior fertility level. The results also show that maize response to N, obviously, have varying degrees of increase production effect in high fertility and medium fertility soil. But the phosphate only in soil available phosphorus (P) content of less than 5ppm soils have a certain yield increasing effect; more than 10ppm also showed negative effect. Therefore, in some agricultural production conditions, should not be overemphasized in order to improve the level of soil fertility and blindly, a lot of fertilization, but scientific fertilization and should pay attention to improve fertilizer economic benefits, in order to increase the production.
Microbial fertilizer on Maize * *, which can be used as base fertilizer can also top dressing, specific usage is:
1: applying base fertilizer per mu 3000 kg of organic fertilizer (manure can be used better, composting fermentation Gymboree fertilizer fermentation agent effect), * * fertilizer 2 kg. The furrow fertilization method can be adopted or fertilizing method, at the same time according to the nature of the soil with nitrogen fertilizer, phosphate fertilizer amount.
2: amount of fertilizer topdressing with per mu less than 20 kilograms of standard fertilizer, should be in the middle of jointing a dressing rod spike qi. General early maturing varieties after sowing 30 days or so, namely "trumpet stage", dressing as well. Cooked products after sowing 25 days left to right, top dressing. Late variety broadcast 35--4 days after fertilization. More than 20 kg per mu of application rate of nitrogen fertilizer of standard, a dressing for good. Focus on tapping rod and the attack of panicle fertilizer. All generally use two times top, like a before after heavy light, namely the attack rod 60%--70% accounted for a good fertilizer, panicle fertilizer 30%---40% accounted for a good school, in jointing, booting stage spraying trace zinc and boron.
The * * microbial fertilizer contains large amounts of the beneficial bacteria, bacterial fertilizer applied into soil, the beneficial microorganism rapidly in soil by geometric progression proliferating, and functional microbial metabolites, super nitrogen fixing solution of phosphorus and potassium, can improve the soil physical and chemical properties, eliminate the soil compaction, to maintain a balanced nutrition, reduce nutrient loss, * * manure also contains humic acid, organic matter and trace elements, can stimulate the crop maize growth, enhance disease resistance and drought resistance of maize cold resistant ability, also has enhanced resistance, lodging resistance effect, also have certain effect on the decomposition of the toxicity of pesticide residues, but also can raise the utilization ratio of fertilizer, the cost is obviously reduced, * * fertilizer can replace about 30% of the fertilizer, with per mu to directly save 500 ~ 800 yuan per mu, can increase the output of more than 200 pounds.