Slow-release fertilizer for watermelons in dry sandy field

A slow-release fertilizer and watermelon technology, which is applied to the field of watermelon slow-release fertilizer in dry sand fields, can solve the problems of declining ecological function of sand fields, shortening the service life of sand fields, and low utilization rate of fertilizers, etc., so as to improve watermelon quality, reduce sugar gradient and effective acidity. , the effect of improving nutrient utilization

Inactive Publication Date: 2012-09-19
甘肃省农业科学院蔬菜研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the particularity of the sand field, in the long-term cultivation process, the difficulty of fertilization has always been the main problem that plagues the production of the sand field. Conventional fertilizati

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] A slow-release fertilizer for watermelon in dry sand field, which is composed of the following components by weight percentage:

[0020] Urea 20%, superphosphate 60%, potassium sulfate 19.4%, long-acting agent 0.6%;

[0021] The long-acting agent is a mixture of nitrogen inhibitor and phosphorus activator in a weight ratio of 3:1;

[0022] The nitrogen inhibitor is a mixture of a nitrification inhibitor and a urease inhibitor in a weight ratio of 1:0.3.

[0023] Nitrification inhibitor is dihydroamine (DCD); urease inhibitor is N-butylthiophosphoric triamide (NBPT); phosphorus activator is humic acid.

[0024] Among them, urea contains 46% of N, and superphosphate contains P 2 O 5 12%, potassium sulfate contains K 2 The amount of O is 50%.

[0025] Compare the dry-sand-sand field watermelon slow-release fertilizer proposed in this example with conventional fertilizers (urea, Gansu Liuhua Group Company; superphosphate, Gansu Jinchang Benma Compound Fertilizer Comp...

Example Embodiment

[0028] Example 2

[0029] A slow-release fertilizer for watermelon in dry sand field, which is composed of the following components by weight percentage:

[0030] Urea 20%, superphosphate 60%, potassium sulfate 19.4%, long-acting agent 0.6%;

[0031] The long-acting agent is a mixture of nitrogen inhibitor and phosphorus activator in a weight ratio of 3:1;

[0032] The nitrogen inhibitor is a mixture of a nitrification inhibitor and a urease inhibitor in a weight ratio of 1:0.3.

[0033] Specifically, the nitrification inhibitor is dihydroamine; the urease inhibitor is N-butylthiophosphoric triamide; and the phosphorus activator is humic acid.

[0034] Among them, urea contains 48% of N, and superphosphate contains P 2 O 5 14%, potassium sulfate contains K 2 O content is 52%.

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PUM

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Abstract

The invention discloses a slow-release fertilizer for watermelons in dry sandy field. The slow-release fertilizer comprises the following compositions in percentage by weight: 20 percent of urea, 60 percent of calcium superphosphate, 19.4 percent of potassium sulfate, and 0.6 percent of sustained release drug; the sustained release drug is prepared by mixing nitrogen inhibitor and phosphorous activating agent according to weight ratio of 3:1; and the nitrogen inhibitor is prepared by mixing nitrification inhibitor and urease inhibitor according to a weight ratio of 1:0.3. The slow-release fertilizer for watermelons in dry sandy field has the advantages of being simple to apply, capable of conducting application at one time, low in production cost, and high in fertilizer utilization rate, and increasing the yield of watermelons.

Description

technical field [0001] The invention relates to a chemical fertilizer, in particular to a watermelon slow-release fertilizer for dry sand fields. Background technique [0002] The dry sand field is a field covered with 7-20cm thick gravel or pebbles with coarse sand on the surface. It is a unique and traditional drought-resistant farming method in the arid and semi-arid areas of Northwest my country. The dry farming form created in long-term farming practice is one of the methods of soil covering and soil and water conservation. [0003] my country's sand fields are mainly concentrated in central Gansu, where rainfall is relatively low, and parts of Ningxia, Qinghai and Xinjiang. Practice and research have shown that compared with soil fields, sandy fields can reduce evaporation and runoff, increase soil temperature, increase water infiltration, prevent soil erosion and soil secondary salinization. [0004] In recent years, with the development of sand field melon and veget...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02P60/21
Inventor 马忠明杜少平冯守疆薛亮
Owner 甘肃省农业科学院蔬菜研究所
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