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Application method of charcoal-based molybdenum fertilizer for improving vegetable quality

An application method and biochar technology, applied in the direction of fertilization method, application, fertilization device, etc., can solve the problem that the yield and quality of vegetables have not been effectively improved, and achieve the effects of protecting people's health, improving nitrogen fertilizer use efficiency, and increasing content

Inactive Publication Date: 2022-02-01
广东省农业科学院农业质量标准与监测技术研究所
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Problems solved by technology

However, at this stage, there are few studies on fertilization methods suitable for acidic soils, and the yield and quality of vegetables in acidic soil areas have not been effectively improved. method, effectively promoting a large amount of nitrate nitrogen absorbed by plants (vegetables) into ammonium nitrogen is an important guarantee for vegetable yield and quality, and is also the focus of research by those skilled in the art

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  • Application method of charcoal-based molybdenum fertilizer for improving vegetable quality
  • Application method of charcoal-based molybdenum fertilizer for improving vegetable quality

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preparation example Construction

[0033] The raw material source of biochar and the preparation method of biochar mentioned above are only an option in the embodiments of the present invention, and are not intended to limit the present invention. The biochar described in the present invention can also be biochar prepared by any method for preparing biochar in the art using any available agricultural waste as raw material.

[0034] The preparation method of biochar-based molybdenum fertilizer is as follows:

[0035] A certain amount of biochar is added to a certain concentration of ammonium molybdate aqueous solution, the specific ratio is according to the requirements of each embodiment, the suspension is shaken and adsorbed for 48 hours, and the biochar-based molybdenum fertilizer is obtained after natural drying.

[0036] The above preparation method of biochar-based molybdenum fertilizer is only an option in the embodiments of the present invention, and is not intended to limit the present invention. The b...

Embodiment 1

[0038]The red soil in Fogang County, Guangdong Province was selected. The measured soil pH was 4.47, the soil organic matter content was 6.62g / kg, the soil effective molybdenum content was 0.107mg / kg, and the molybdenum value was 5.54; the biochar-based molybdenum fertilizer applied was rice straw 1 part of biochar and 0.0003 parts of ammonium molybdate are biochar-based molybdenum fertilizers prepared by adsorption equilibrium, and the application rate is 1500kg / mu (667m 2 ). The planted vegetable variety is Chinese cabbage, and the biochar-based molybdenum fertilizer is applied on the first day after the harvest of the previous crop, and nitrogen fertilizer (in N) and phosphorus fertilizer (in P 2 o 5 In terms of) and potassium fertilizer (in K 2 (O meter) amount is respectively 7.5kg / mu, 2.0kg / mu, 0, and nitrogen fertilizer, phosphorus fertilizer and potash fertilizer are applied respectively 25%, 50%, 100%, field operations such as rotary tillage, plowing, ridging, irrig...

Embodiment 2

[0042] The red soil in Dongyuan County, Guangdong Province was selected. The measured soil pH was 5.64, the soil organic matter content was 9.34g / kg, the soil available molybdenum content was 0.121mg / kg, and the molybdenum value was 6.85; the biochar-based molybdenum fertilizer applied was chaff 4 parts of biochar and 0.00015 parts of ammonium molybdate are biochar-based molybdenum fertilizers prepared by adsorption equilibrium, and the application rate is 1000kg / mu (667m 2 ). The planted vegetable variety is pakchoi, and the biochar-based molybdenum fertilizer is applied on the 5th day after the harvest of the last crop, and nitrogen fertilizer (in N) and phosphorus fertilizer (in P 2 o 5 In terms of) and potassium fertilizer (in K 2 (O meter) amount is respectively 7.0kg / mu, 2.2kg / mu, 0.5kg / mu, and nitrogen fertilizer, phosphorus fertilizer and potash fertilizer are respectively reduced by 30%, 45%, 88%, rotary tillage, plowing, ridging, irrigation etc. Field operations a...

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Abstract

The invention discloses an application method of a charcoal-based molybdenum fertilizer for improving vegetable quality, and belongs to the technical field of vegetable quality improvement. Comprising the following steps: (1) determining the application amount of the charcoal-based molybdenum fertilizer according to the soil organic matter level; and (2) according to the determined application amount, performing basal application of a charcoal-based molybdenum fertilizer, and performing decrement combined application of a nitrogen fertilizer, a phosphate fertilizer and a potash fertilizer. The charcoal-based molybdenum fertilizer is prepared from biochar and ammonium molybdate as raw materials. The invention has the characteristics of reasonably applying the charcoal-based molybdenum fertilizer and effectively replacing the chemical fertilizer, and can realize the effects of reducing the application amount of the nitrogen fertilizer by 10-30%, reducing the application amount of the phosphate fertilizer by 30-50% and reducing the application amount of the potash fertilizer by 70-100%. By applying the charcoal-based molybdenum fertilizer according to the method, the yield of vegetables can be increased by 10-30%, the quality of the vegetables can be improved, meanwhile, the nitrate content in nitrate-loving leaf vegetables can be greatly reduced, so that the safety of the vegetables is improved, and the charcoal-based molybdenum fertilizer has important significance on increasing the income of farmers and guaranteeing the health of people.

Description

technical field [0001] The invention belongs to the technical field of vegetable quality improvement, and in particular relates to a biochar-based molybdenum fertilizer application method for improving vegetable quality. Background technique [0002] With the continuous development of modern society and the improvement of people's living standards, people's demand for high-quality agricultural products has increased significantly. At the same time, the problem of excessive application of vegetable fertilizers has become increasingly prominent, seriously restricting the sustainable development of the vegetable industry. Long-term application of chemical fertilizers has brought great harm to the land and crops. It not only causes soil compaction, soil microbial environment degradation, and aggravates environmental pollution, but also leads to crop nutritional imbalance or blockage of transformation and synthesis, resulting in a decrease in the quality of agricultural products....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00C05G3/80
CPCA01C21/005C05G3/80C05D9/00C05D9/02
Inventor 黄永东文典杜瑞英邓腾灏博石含之江棋王旭
Owner 广东省农业科学院农业质量标准与监测技术研究所
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