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Growth regulating type paddy rice special long effact fertilizer

A technology of long-acting fertilizers and growth-regulating substances, applied in the field of fertilizers, can solve problems affecting rice yield potential, poor nutrient distribution ratio, and constraints on rural labor, so as to achieve stable effects of increasing production and income, simplify fertilization and growth regulation measures, and improve The effect on labor productivity

Inactive Publication Date: 2004-12-22
广东省农业科学院土壤肥料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are the following outstanding problems in rice production: (1) The frequency of fertilization is high, the cost is high, and the labor intensity is high, which not only reduces the production efficiency, but also restricts the transfer of rural labor force; , excessive application of fertilizers, excessive application of a single nutrient, or insufficient fertilization are common; (3) issues such as insufficient effective panicles or late lodging often affect the development of rice yield potential

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take by weighing 220 kilograms of urea, 240 kilograms of ammonium sulfate, 360 kilograms of superphosphate, 100 kilograms of potassium sulfate, 8 kilograms of nutrient long-acting substances (the ratio of dicyandiamide and fulvic acid is 1: 0.8), 5 kilograms of zinc sulfate, 2 kg of manganese sulfate, 65 kg of stone powder (for granulation filler), crushed and mixed evenly, added to the granulator to granulate, then dried and sieved to make the particle size of fertilizer particles 2-4mm, and finally coated Spray 3 liters of coating solution containing growth-regulating substance (benzylamine) on the fertilizer in the machine, and then stir for 3 minutes to obtain a growth-regulating rice-specific long-acting fertilizer with a nitrogen, phosphorus, and potassium content of 15-5-5. .

Embodiment 2

[0017] Weigh 130 kg of urea, 430 kg of ammonium bicarbonate, 110 kg of diammonium phosphate, 170 kg of potassium chloride, 45 kg of long-acting nutrients (the ratio of dicyandiamide to fulvic acid is 1:0.2), and 115 kg of stone powder (for granulation filler), crushed and mixed evenly, added to the granulator to granulate, then dried and sieved to make the particle size of fertilizer particles 2-4mm, and finally spray the fertilizer in the coating machine with growth regulation 5 liters of the coating solution of the substance (chlormequat) was stirred for another 3 minutes to obtain a growth-regulating long-acting rice special-purpose fertilizer with a content of nitrogen, phosphorus and potassium of 15-5-10.

Embodiment 3

[0019] First, weigh 265 kg of urea, 150 kg of ammonium chloride, 130 kg of diammonium phosphate, 150 kg of calcium magnesium phosphate fertilizer, 233 kg of potassium chloride, and 72 kg of filler. And sieve to make the particle size of fertilizer particles be 2-4mm. Next, add 1,000 kg of granular fertilizer and 27 kg of long-lasting nutrient substances (the ratio of dicyandiamide and fulvic acid is 1:1) into the coating machine and stir for 3 to 5 minutes to make them evenly mixed, and then in the process of fertilizer rotation Spray 10 liters of the coating solution containing the growth regulating substance (uniconazole) into the medium, and then stir for 4 minutes to obtain the special long-acting fertilizer for growth regulating rice with nitrogen, phosphorus and potassium content of 17-7-13.

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Abstract

A durable-acting fertilizer with growth regulating function for paddy rice is prepared through proportionally mixing the raw fertilizer with the substance for making nutrients durable for 3-5 min, spraying growth regulating substance for coating, and stirring for 3-5 min. Its advantage is high yield.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special long-acting fertilizer for growth-regulating rice. Background technique [0002] Long-acting fertilizers have the remarkable characteristics of long-lasting nutrients, high utilization rate, light environmental pollution, and the ability to minimize fertilization. It has been one of the hot spots in fertilizer research and product development in the past half century. In the past research, many fertilizer experts have successfully developed long-acting fertilizers with different characteristics. Long-acting fertilizers prepared from materials with high adsorption capacity, Chinese invention patents ZL97111891, ZL97111892 and Chinese invention patent application 97125694 disclose long-acting fertilizers prepared from materials such as fulvatin and dicyandiamide. After the above-mentioned long-acting fertilizer is applied to the soil, due to...

Claims

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Application Information

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IPC IPC(8): C05G5/00
Inventor 唐拴虎陈建生徐培智张发宝谢春生艾绍英
Owner 广东省农业科学院土壤肥料研究所
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