In the grape production process, most of the nutrients are obtained from the soil. Here, the scientific use of fertilizers is emphasized, and the combination of organic fertilizer and inorganic fertilizer is just right. Recently, it is the key period for the use of base fertilizer for grapes. How to control the amount of base fertilizer (organic fertilizer)?
Simple and scientific method for calculating organic fertilizer
1. First understand the soil nutrient grading standards (according to the second national soil survey);
2, then how to calculate the amount of organic fertilizer required by the soil?
The first step: calculating the soil
The area of ​​an acre of land is 667m2, while the depth of the cultivated layer of the grape is 20cm-80cm, calculated according to 20cm:
The soil volume of the cultivated layer of one mu of land = 667m2*0.2m=133.4m?
(ie, the soil of one acre of cultivated layer is 133.4 square)
So how many of these are there? The soil capacity is needed to calculate the soil weight (refers to the mass of the original soil of the unit volume)
The soil capacity ranges from 1.0 to 1.6 g/cm?, calculated according to 1.15 g/cm?
The weight of the soil in the cultivated layer of one mu of land = 133.4m?*1.15g/cm?≈150,000kg
Step 2: Calculate organic fertilizer
The organic matter content of organic fertilizer is calculated at 45%.
50kg organic fertilizer can theoretically change soil organic matter in an acre of land = 50kg * 45% / 150,000kg
=0.015%
In order to continuously improve the soil and maintain the soil organic matter at an excellent level, we calculate the amount of organic fertilizer required to be applied in one mu of land according to an increase of 1%, that is, one unit of soil organic matter (medium level of soil organic matter content of 2 to 3%). What?
1 mu of land is increased by 1 unit of organic matter (1% 8150,000 kg) / 45% = 3333 kg, about 3 tons per mu.
This is only a reference for the theory. At the same time, the use of organic fertilizer is a continuous supplement. It is recommended to use it once a year, which can effectively improve the soil of the vineyard.
Effective use of base fertilizer
First, combined with deep tillage application. The use of base fertilizer should be combined with deep tillage in the area where the roots are concentrated (the grape ditch is about 50cm from the root, the width of the ditch is 30-50cm, the depth is about 40-50cm) and the soil layer that is often kept moist to facilitate the The combination of soil and fertilizer plays a role in fertilizing the soil and supplying nutrients for the crop.
Second, the use of fertilizer layering, in order to adapt to the continuous elongation of crop roots and its absorption of nutrients, should first apply the effective fertilizer to the middle and lower part of the soil layer, and then apply the quick-acting fertilizer to the upper part to achieve stratification. Fertilization, combination of delay and quick effect.
Third, centralized application. In order to improve the fertilizer efficiency, a small amount of fertilizer is concentrated around the root of the grape (ditch or hole application) by means of ditching or hole application. For phosphate fertilizers, mixing with organic fertilizers and concentrated application can reduce the contact area with the soil and prevent phosphorus from being fixed by the soil, thereby increasing the effectiveness of phosphorus.
Fourth, a variety of fertilizers mixed application. In order to ensure that the crops receive various nutrients throughout the growing period, the base fertilizer is preferably mixed with a variety of fertilizers. “Organic fertilizer + bacterial fertilizer + compound fertilizer + trace element fertilizerâ€, first add organic fertilizer, plus microbial bacteria Fertilize, mix thoroughly, add trace element fertilizer, stir well and finally add compound fertilizer!
This article URL: What are the benefits of organic fertilizer for grape growing? How many pounds of organic fertilizer need to be applied?
D-tagatose is a rare natural monosaccharide, which is the ketose form of galactose and the epimer of fructose. The sweet characteristic is similar to sucrose, and the heat produced is only one third of sucrose, so it is called low calorie sweetener. Tagatose has excellent nutritional characteristics such as low caloric value, zero glycemic index, blood glucose passivation, caries free, prebiotic effect and Antioxidant activity. Tagatose has been approved by FDA as a pharmaceutical excipient for throat moistening tablets, over-the-counter diabetes cough syrup, chewable antibiotic tablets, non steroidal anti-inflammatory drugs and pediatric drugs. FDA Approves tagatose to replace sucrose and other sweeteners in toothpaste, mouthwash and cosmetics.
D-Tagatose Powder,Aspartame Powder,Erythritol Powder,Monk Fruit Extract
Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com