Grapevine Biological Solidification Layer for Frost and Wind
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Solution Overview
Problem
In desert planting areas of northern China, traditional soil burial methods for overwintering grapevines are inefficient and labor-intensive, prone to wind erosion, and difficult to control, leading to frost damage and poor survival rates.
Innovation Solution
A method involving the use of a biological solidification layer formed by spraying a solution composed of bean flour, xanthan gum, cellulose, and calcium chloride onto a soil-covered layer around grapevines, followed by a de-solidification process using monocalcium phosphate, to enhance frost resistance and reduce soil burial thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional soil burial method is used for overwintering grapevines, then the vines are protected from frost, but the soil layer is easily eroded by wind and requires excessive thickness (50-100 mm coverage) in sandy desert areas
Solution Approach 1:
The patent introduces a biological solidification layer as an intermediary substance between the soil and wind. This layer, formed by spraying biological solidification solution containing bean flour, xanthan gum, and cellulose onto the soil surface, acts as a protective mediator that binds soil particles together, preventing wind erosion while maintaining frost protection functionality.
Solution Approach 2:
The patent creates a composite protective layer by combining multiple biological materials (bean flour, xanthan gum, cellulose) with soil particles. This composite structure provides both the binding strength to resist wind erosion and the insulating properties to protect against frost, solving the contradiction between erosion resistance and protection effectiveness.
2Reliability
If traditional soil burial method is used, then vines are protected from frost, but mechanical soil removal in spring is time-consuming and labor-intensive
Solution Approach 1:
The patent applies the biological solidification treatment in advance during winter preparation, creating a layer that naturally degrades or can be easily removed in spring. The preliminary application of the biological solution reduces the need for intensive mechanical removal later, as the biodegradable components break down naturally or can be washed away with water.
Solution Approach 2:
The patent replaces the need for mechanical soil removal with a biodegradable biological layer. Instead of using heavy machinery to dig and remove thick soil coverings, the biologically-based layer can be removed by simple washing or natural degradation, substituting mechanical intensive operations with gentle chemical/biological processes.
3Reliability
If traditional soil burial method is used, then vines are protected from frost, but the method is difficult to control and easily damages the plants
Solution Approach 1:
The patent replaces manual or mechanical soil placement and removal operations with a spraying system that applies biological solution uniformly. The spray application method provides precise control over coverage amount and distribution, eliminating the difficulty of controlling soil depth and placement that characterizes traditional burial methods.
Solution Approach 2:
The patent changes the physical state and properties of the protective material from solid soil particles to a liquid biological solution that can be precisely controlled during spraying. By controlling parameters such as spray rate, solution concentration, and application timing, the method achieves precise control over the protective layer formation without damaging the plants.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively protects grapevines from frost and wind erosion, reduces soil coverage needs, and provides nutrients, improving survival rates and operational efficiency while being environmentally friendly and cost-effective.
Implementation Method 1
spraying biological solidification solution onto the soil-covered layer to form the biological solidification layer
Implementation Method 2
spraying biological solidification solution onto the soil-covered layer to form the biological solidification layer
Implementation Method 3
spraying de-solidification solution onto the biological solidification layer after the protection is completed to desolidify the biological solidification layer
Data Source
AI summary
Disclosed is a method for overwintering and cold resistance of grapevines, the vines are covered with a biological solidification layer, and the method includes the following steps: placing stems of the vines in rows on a ground, and digging soil between the rows to cover the vines and stems in the rows to form a soil-covered layer; and a thickness of the soil-covered layer is such that a distance from the stems to a top of the soil-covered layer is 50-100 mm; and spraying biological solidification solution onto the soil-covered layer to form the biological solidification layer, where composition and concentration of the biological solidification solution are as follows: 0.5-2 g/L of bean flour, 0.2-1 g/L of xanthan gum, 0.2-1 g/L of cellulose, 0.5-2 g/L of urea and 0.5-2 g/L of calcium chloride. The method is safe, reliable, time-saving, and easy to operate for overwintering of vines.