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Efficient fertilization method of matching slow/controlled release nitrogenous fertilizer and phosphorus and potassium fertilizer in garlic and corn crop rotation

A fertilization method and corn technology, applied in the field of potassium fertilizer combined with high-efficiency fertilization, slow/controlled release nitrogen fertilizer application, slow/controlled release nitrogen fertilizer and phosphorus, can solve problems such as inappropriateness, reduce fertilizer application costs, improve fertilizer use efficiency, The effect of promoting efficient application and healthy development

Inactive Publication Date: 2012-07-25
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method provided by this patent document is the application of organic fertilizers and quick-acting chemical fertilizers on garlic, which is not suitable for slow / controlled release fertilizers, nor is it suitable for application under the conditions of garlic and corn rotation

Method used

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  • Efficient fertilization method of matching slow/controlled release nitrogenous fertilizer and phosphorus and potassium fertilizer in garlic and corn crop rotation
  • Efficient fertilization method of matching slow/controlled release nitrogenous fertilizer and phosphorus and potassium fertilizer in garlic and corn crop rotation
  • Efficient fertilization method of matching slow/controlled release nitrogenous fertilizer and phosphorus and potassium fertilizer in garlic and corn crop rotation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1, slow / controlled release nitrogen fertilizer and phosphorus, potash fertilizer in the garlic, corn crop rotation and efficient fertilization method:

[0040] (1) The slow / controlled release nitrogen fertilizer for garlic is 20% sulfur base coat plus 2% polymer coated urea, which is converted into pure nitrogen and uses 15 kg per mu; the slow / controlled release nitrogen fertilizer for corn is 20% sulfur Coated urea, converted into pure nitrogen, uses 10 kg per mu.

[0041] (2) Garlic slow / controlled release nitrogen fertilizer is combined with phosphorus and potassium fertilizers, and the mass ratio is nitrogen: phosphorus pentoxide: potassium oxide = 1:0.7:0.8. The maize slow / controlled release nitrogen fertilizer is combined with potassium fertilizer, and the mass ratio is nitrogen:potassium oxide=1:0.5.

[0042] Phosphate fertilizer and potassium fertilizer for garlic use diammonium phosphate and potassium sulfate respectively, and potassium fertilizer f...

Embodiment 2

[0045] Embodiment 2, slow / controlled release nitrogen fertilizer and phosphorus, potash fertilizer in the garlic, corn crop rotation and high-efficiency fertilization method:

[0046] (1) Slow / controlled release nitrogen fertilizer for garlic is 2% thermoplastic resin and 3% thermosetting resin double-coated urea, converted into pure nitrogen, garlic uses 14 kg per mu; slow / controlled release nitrogen fertilizer for corn is 20% sulfur coating Film urea, converted into pure nitrogen, uses 12 kg per mu of corn.

[0047] (2) Garlic slow / controlled release nitrogen fertilizer is combined with phosphorus and potassium fertilizers, and the mass ratio of nitrogen: phosphorus pentoxide: potassium oxide = 1:0.6:0.7.

[0048] The maize slow / controlled release nitrogen fertilizer is combined with potassium fertilizer, and the mass ratio is nitrogen:potassium oxide=1:0.45.

[0049] Phosphate fertilizer and potassium fertilizer for garlic use diammonium phosphate and potassium sulfate res...

Embodiment 3

[0051] Embodiment 3, slow / controlled release nitrogen fertilizer and phosphorus, potash fertilizer in garlic, corn crop rotation and efficient fertilization method:

[0052] (1) Slow / controlled release nitrogen fertilizer for garlic is 20% sulfur base coating plus 2% polymer coated urea, converted into pure nitrogen, 16 kg per mu of garlic;

[0053] The slow / controlled release nitrogen fertilizer for corn is 18% sulfur base coat plus 3% polymer-coated urea, converted into pure nitrogen, 11 kg per mu of corn.

[0054] (2) Garlic slow / controlled release nitrogen fertilizer is combined with phosphorus fertilizer and potassium fertilizer, and the mass ratio is nitrogen: phosphorus pentoxide: potassium oxide = 1:0.65:0.75. Garlic phosphate fertilizer and potassium fertilizer use diammonium phosphate and potassium sulfate respectively.

[0055] The corn slow / controlled release nitrogen fertilizer is combined with the potassium fertilizer, and the mass ratio is nitrogen:potassium ox...

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Abstract

The invention relates to an efficient fertilization method of matching slow / controlled release nitrogenous fertilizers and phosphorus and potassium fertilizers in garlic and corn crop rotation. Slow / controlled release nitrogenous fertilizers, phosphorus fertilizers and potassium fertilizers for garlic are matched according to a mass ratio of nitrogen: phosphorus pentoxide: potassium oxide=1:(0.6-0.8):(0.7-0.9), nitrogenous fertilizers and potassium fertilizers for corn are matched according to a mass ratio of nitrogen: potassium oxide=1:(0.4-0.6), and the fertilizers are respectively applied in one step during the garlic planting or in the 4 to 6-leaf period after the final singling of the corn. The fertilization method provided by the invention can improve the fertilizer utilization efficiency and the total yield of the two-season crops.

Description

technical field [0001] The invention relates to a method for applying slow / controlled release nitrogen fertilizers, in particular to a method for combining slow / controlled release nitrogen fertilizers with phosphorus and potassium fertilizers in garlic and corn rotations for high-efficiency fertilization, and belongs to the technical field of controlled release fertilizer applications. Background technique [0002] Garlic (Allium sativum L) is a 1-2 year-old herb belonging to Liliaceae and Allium genus. my country is the main producer and exporter of garlic in the world. At present, my country's garlic planting area is about 3.9 million mu, accounting for 1 / 2 of the world's garlic area, with an annual output of 2 million tons. The main planting areas are Shandong, Zhejiang, Jiangsu, Anhui, Henan, Hubei and other places in the middle and lower reaches of the Yellow River. [0003] Sowing in autumn and harvesting in spring are the main planting methods for garlic, and the rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00
Inventor 杨力于淑芳崔荣宗张玉凤魏建林董亮田叶
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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