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Integrated and safe biogas slurry, water and fertilizer applying method for watermelons and melons

An application method and technology of biogas slurry, applied in the direction of fertilization method, application, fertilization equipment, etc., can solve the problems of low utilization rate of biogas slurry, unreasonable application, high cost, etc., reduce transportation costs, improve biogas slurry utilization efficiency, improve The effect of fruit quality

Active Publication Date: 2018-10-12
NORTHWEST A & F UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a biogas slurry water and fertilizer integrated safe application method for watermelons and melons, the main purpose of which is to solve the problems of low utilization rate of biogas slurry, high cost and unreasonable application

Method used

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  • Integrated and safe biogas slurry, water and fertilizer applying method for watermelons and melons
  • Integrated and safe biogas slurry, water and fertilizer applying method for watermelons and melons
  • Integrated and safe biogas slurry, water and fertilizer applying method for watermelons and melons

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Embodiment 1

[0036] Embodiment 1 (detection of biogas slurry components)

[0037] During the two seasons of 2016-2017, the composition of the biogas slurry was determined in the growing season of greenhouse crops (February-June 2016, September 2016-June 2017, September 2017-January 2018) (the biogas slurry raw material is Yangling Benxiang Agricultural Industry Group pig farm manure + wastewater), its composition content is as follows: pH value: 8.0-8.39, conductivity value: 10.9-12.5ms / cm, N: 1.10-1.30g / L, P 2 o 5 : 0.10-0.12g / L, K 2 O: 1.15-1.27g / L, and other trace elements, the average nutrient content is N: 1.2g / L, P 2 o 5 : 0.11g / L, K 2 O: 1.2g / L, (10m 3 The biogas slurry contains 12kg of pure nitrogen, 1.1kg of P 2 o 5 , 12kg K 2 O); In addition, the heavy metal content was measured, and the heavy metal content cadmium was 0.0066-0.0078 μg / ml, the lead was not detected, the chromium content was 0.28-0.58 μg / ml, and the nickel content was 0.13-0.19 μg / ml. "(NY / T 2596-2014) re...

Embodiment 2

[0039] The watermelon biogas slurry water and fertilizer integrated safe application method in this facility is a small watermelon (gift watermelon) in early spring, the variety is: Linglong Wang; the test site is the solar greenhouse of Jialiyuan Cooperative, Tongzhang Village, Wuquan Town, Shaanxi Yangling Agricultural High-tech Industry Demonstration Zone, In order to prevent the occurrence of soil-borne diseases caused by continuous cropping of watermelon every year, the cooperative adopts the substrate potting method; the substrate comes from local farmers using biogas residues, straw, cow dung and other wastes to be piled and decomposed, and the volume of each pot is about 0.013m 3 , each pot contains 5.5kg of substrate, and each pot is planted with one watermelon, and the planting density is 2000 plants / mu. 200 pots were planted in the test and 200 pots were planted in the control. Both the test treatment and the control treatment were fertilized with water and fertilize...

Embodiment 3

[0050] The safety method of integrated water and fertilizer application of muskmelon biogas slurry in this facility is spring stubble muskmelon, the variety is: Qianyu No. 1, and the test site is the solar greenhouse of Jialiyuan Cooperative, Tongzhang Village, Wuquan Town, Shaanxi Yangling Agricultural High-tech Industry Demonstration Zone. In order to prevent soil-borne diseases, the cooperative adopts the method of substrate potting. The substrate comes from local farmers using biogas residues, straws, cow dung and other wastes to decompose. The volume of each pot is about 0.013m 3 , each pot contains 5.5kg of substrate, and one plant is planted per pot, and the planting density is 2000 plants / mu. 500 pots were planted in the test and 500 pots were planted in the control. Both the test treatment and the control treatment were fertilized with water and fertilizer integration under the conditions of equal nitrogen, phosphorus and potassium. The test treatment was biogas slurry...

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Abstract

The invention discloses an integrated and safe biogas slurry, water and fertilizer applying method for watermelons and melons and relates to the field of agricultural fertilizers. The method comprisesthe following steps that 1, liquid dung from an intensive raising farm is fermented in a primary fermentation tank and then enters a secondary fermentation tank for fermentation, and fermented biogasslurry is stored in a storage tank; 2, when irrigation is needed, the biogas slurry in the storage tank and irrigation water are injected into a mixing tank in proportion for mixing, electric conductivity, pH and nutrient content are detected and monitored, other nutrients and ingredients are added into a regulation tank for fine regulation, and the mixture is filtered by a filtering device and then enters an integrated water and fertilizer pipeline; 3, according to the nutrient demand rules of watermelons and melons at different growth stages, the biogas slurry dilution ratio and irrigationamount are determined, and then an appropriate amount of biogas slurry is delivered to a crop root zone through the integrated water and fertilizer pipeline in good time. By adopting the method, the biogas slurry utilization rate is improved, the cost is reduced, and reasonable application is achieved.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a biogas slurry water and fertilizer integrated safe application method for watermelon and melon. Background technique [0002] With the development of livestock and poultry farming in the direction of scale, intensification and mechanization, the amount of livestock and poultry manure and wastewater produced by farms, especially pig farms, has increased sharply. How to dispose and utilize these feces is a major issue worthy of study. Using the livestock and poultry manure consumed by the biogas project to produce biogas slurry, and using the biogas slurry for agricultural use is one of the means of effectively disposing of livestock and poultry manure. Biogas slurry is a liquid fertilizer with very rich nutrient content. Biogas slurry contains a certain amount of essential nutrients for plant growth and development, such as nitrogen, phosphorus, potassium macronutrients,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/05A01C21/00
CPCA01C21/005A01G22/05
Inventor 陈竹君王梅高旭张奇周建斌
Owner NORTHWEST A & F UNIV