Organic fertilizer and phosphorus do not match!
With the adjustment of national policies, the application of organic fertilizers will be highly valued in the future. However, because the organic fertilizer is not perfect, the low nutrient content is the biggest drawback. To fully play the role of organic fertilizer, the actual production needs to be applied together with chemical fertilizers. Experts remind that organic fertilizers can be applied with nitrogen fertilizers to supplement their nitrogen deficiencies, but they should not be used together with phosphate fertilizers to prevent the organic fertilizers themselves from containing more phosphorus but lower the effect of phosphate fertilizers.
Scientific experiments showed that: in five 2-3 years, no organic fertilizer applied to the field, respectively, 75 tons of organic fertilizer applied to each hectare and no application of organic fertilizer on the basis of 0,75 kg, 150 kg, 225 kg, 300 respectively. Kilograms of urea result in a poor effect of nitrogen fertilizer when no organic fertilizer is applied, and only 0.5 to 2 kg of wheat per kilogram of urea is increased. After the application of organic fertilizer, the average yield of wheat per kilogram of urea is more than 5 kg, up to 10 kg. Experiments conducted on another field proved that with no nitrogen fertilizer, 10.4 kg of wheat was produced per ton of organic fertilizer, and 12.5 kg per ton of organic fertilizer was added after the application of nitrogen fertilizer.
However, organic fertilizers and phosphate fertilizers give another result. In a field with phosphorus deficiency and application of phosphate fertilizer, tests were conducted with three levels of organic fertilizer, 37.5 tons per hectare and organic fertilizer of 75 tons, and 300 kg and 600 kg per organic fertilizer. Superphosphate (about 10% with P2O5). The results showed that in the case of applying 300 kg of superphosphate, no organic fertilizer was applied, and the production of wheat was increased by 4.2 kg per kg of superphosphate; after applying 37.5 tons and 75 tons of organic fertilizer, the yield increase per kg of superphosphate decreased to 2.3 kg. And 1.64 kg. In the case of applying 600 kg of superphosphate, organic fertilizer was not applied. The yield of wheat was increased by 1.77 kg per kilogram of superphosphate, and after applying 37.5 tons and 75 tons of organic fertilizer, the yield increase was reduced to 1.09 kilograms and 0.66 kilograms, respectively.
Experts reminded that applying nitrogen fertilizer after application of organic fertilizer can greatly increase the yield of crops; if organic fertilizer is applied before application of phosphate fertilizer, the effect of increasing production will be greatly reduced, and the higher the amount of organic fertilizer, the greater the decline. The above situation is not only proved in the test, but also confirmed in many production practices. Therefore, organic fertilizers and nitrogen fertilizers can be applied, but they must be applied separately from phosphate fertilizers. Http://Content/057fceee-cb06-405b-b272-e26573c9eed7?cType=2
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