Gluronic acid ecological fertilizer aid and application thereof
A technology of polyuronic acid and ecological fertilizers, applied in application, fertilizer mixture, layered/coated fertilizers, etc., can solve problems affecting plant root growth, fertilizer nutrient absorption, increased pests and diseases, fertilizer waste, etc., to improve nutrient utilization The effect of reducing the interfacial tension and avoiding precipitation
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Embodiment 1
[0038] An application of a polyuronic acid ecological fertilizer additive, comprising 99.4-99.9% of urea and 0.1%-0.6% of an additive, the additive comprising 60% of polyuronic acid and 40% of modified lignosulfur Sodium acid, compounded sulfonate compound, humic acid and borate mixture, additives are prepared into a 30-50% solution, added to the bottom of the U-shaped tube of the urea evaporator with a metering pump, and made by two steaming and urea towers The finished product polyuronic acid urea is obtained.
Embodiment 2
[0040] An application of a polyuronic acid ecological fertilizer additive, comprising 99.1-99.7% of compound fertilizers and 0.3%-0.9% of additives, said additives comprising 70% of polyuronic acid and 30% of modified lignin Sodium sulfonate, compounded sulfonate compound, humic acid and borate mixture are added to the granulator after being measured by a weighing scale, and then granulated, dried, sieved and wrapped with an anti-caking agent. The finished polyuronic acid compound fertilizer has a N-P2O5-K2O nutrient distribution ratio of 29-6-7.
Embodiment 3
[0042] The polyuronic acid urea prepared by example 1 is mixed with 0.5% solution, selects two adjacent plots 10m in the same bean planting field, sprays with 5kg common urea solution and polyuronic acid urea solution blade respectively at the seedling stage Once, the leaves are sprayed once every 15 days during the flowering and fruiting period, each time with 15kg, and other field management, fertilization and pest control are the same. The test results are:
[0043] Ordinary urea polyuronic acid urea improve(%) reduce(%) Yield (kg / mu) 2415 2618 8.41 Vitamin C content (mg / 100g) 38.2 40.6 6.28 Incidence rate of rust (%) 3.4 2.5 26.47 Incidence rate of downy mildew (%) 3.2 2.1 34.38 Incidence rate of leaf spot disease (%) 5.2 3.0 42.31 Aphid loss rate (%) 2.0 1.6 20
[0044]The test results were compared and analyzed, and it was found that the polyuronic acid urea sprayed on the leaves was compare...
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