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Is it cost-effective to use glyphosate for weeding in orchards or to use weed cloth? 【Old Farmers' Wish】(graphic)
by：Sunshine
2021-04-06
Weeds have always been the enemy in the orchard planting process, and in severe cases can lead to a 30% reduction in citrus production. Faced with wild weeds, fruit farmers have always had a headache for this. Because chemical herbicides are convenient, trouble-saving and labor-saving, they have become the first choice of many fruit farmers. Glyphosate thus becomes the protagonist of herbicides in citrus orchards.
As long as herbicides are used, they will generally have side effects. If herbicides are not used, weeding methods such as manual weeding, mechanical weeding, and weed-control cloth are generally used.
Manual weeding: The cost is still high. Now the labor cost is high and the weeds turn green quickly. Weeding at least 4 times a year.
Mechanical weeding: Weeding is faster, the cost is relatively low, the weeds turn green quickly, and the height of weeds can be controlled to realize limited grass cultivation.
Weed control cloth: The cost is higher, but it can be sprayed with water and fertilizer, the weeding effect is better, and it can also reduce water evaporation and reduce nutrient loss.
So which weeding method should be used? ---Orchard weeding cost and hazard analysis
Glyphosate orchard weeding
Glyphosate weeding is the most economical and affordable. Generally, the cost of weeding is 5-10 yuan per acre. The speed of glyphosate dying grass is slow. Generally, it takes 7 days to take effect and it takes only half a month to die. Glyphosate can control weeds for a long time, weeding and killing roots, but glyphosate is harmful to the roots of fruit trees. It is recommended to wear a protective cover for directional spray, try to avoid applying glyphosate in the tree tray, and choose when the wind is low when weeding. Minimize drift.
The phytotoxicity of glyphosate is divided into direct phytotoxicity, indirect phytotoxicity and recessive phytotoxicity.
Direct phytotoxicity
Part of the leaves are browned and withered
The light ones make the citrus wilt, and the leaves are dark blue and purple. In severe cases, it turns yellow and red, and finally browns and wilts and die.
Indirect phytotoxicity
Slow growth of new shoots
The growth of new leaves and buds is inhibited, elongation and growth are slow, turning green is affected, and some of the leaves are deformed and narrow.
Hidden phytotoxicity
The phosphate root, the degradation product of glyphosate, is easily combined with iron and zinc in the soil, and the effectiveness of iron and zinc is therefore reduced. Citrus will have symptoms such as small leaves, mosaic leaves, and arbuscular branches due to iron and zinc deficiency.
Weed control cloth orchard weeding
The cost of weeding is relatively high. Generally, a one-time investment of more than three years of weeding cloth requires a one-time investment of 750 yuan/mu, but the average annual cost of weeding is 250 yuan. One-time laying will benefit for many years! The weeding effect is better, and it can also reduce water evaporation, reduce nutrient loss, and improve soil compaction.
The old farmers wish that the eco-degradable orchard grass cloth is an environmentally friendly material that inhibits the degradability of weeds and maintains soil moisture. The degradable grass cloth is used in outdoor potted flowers, nurseries, large gardens, orchards such as The planting of citrus orchards, apple orchards, cherry orchards, dragon fruit, blueberries, kiwis, grapes and other orchards has been widely used in the field of weed prevention. After the ground cloth is used, a large amount of manual weeding costs and fertilizer costs can be saved. With the use of degradable grass cloth, it can not only maintain the stability of soil moisture, but also solve the problem of soil microorganisms and soil compaction more conveniently. Issues such as crop growth.
As long as herbicides are used, they will generally have side effects. If herbicides are not used, weeding methods such as manual weeding, mechanical weeding, and weed-control cloth are generally used.
Manual weeding: The cost is still high. Now the labor cost is high and the weeds turn green quickly. Weeding at least 4 times a year.
Mechanical weeding: Weeding is faster, the cost is relatively low, the weeds turn green quickly, and the height of weeds can be controlled to realize limited grass cultivation.
Weed control cloth: The cost is higher, but it can be sprayed with water and fertilizer, the weeding effect is better, and it can also reduce water evaporation and reduce nutrient loss.
So which weeding method should be used? ---Orchard weeding cost and hazard analysis
Glyphosate orchard weeding
Glyphosate weeding is the most economical and affordable. Generally, the cost of weeding is 5-10 yuan per acre. The speed of glyphosate dying grass is slow. Generally, it takes 7 days to take effect and it takes only half a month to die. Glyphosate can control weeds for a long time, weeding and killing roots, but glyphosate is harmful to the roots of fruit trees. It is recommended to wear a protective cover for directional spray, try to avoid applying glyphosate in the tree tray, and choose when the wind is low when weeding. Minimize drift.
The phytotoxicity of glyphosate is divided into direct phytotoxicity, indirect phytotoxicity and recessive phytotoxicity.
Direct phytotoxicity
Part of the leaves are browned and withered
The light ones make the citrus wilt, and the leaves are dark blue and purple. In severe cases, it turns yellow and red, and finally browns and wilts and die.
Indirect phytotoxicity
Slow growth of new shoots
The growth of new leaves and buds is inhibited, elongation and growth are slow, turning green is affected, and some of the leaves are deformed and narrow.
Hidden phytotoxicity
The phosphate root, the degradation product of glyphosate, is easily combined with iron and zinc in the soil, and the effectiveness of iron and zinc is therefore reduced. Citrus will have symptoms such as small leaves, mosaic leaves, and arbuscular branches due to iron and zinc deficiency.
Weed control cloth orchard weeding
The cost of weeding is relatively high. Generally, a one-time investment of more than three years of weeding cloth requires a one-time investment of 750 yuan/mu, but the average annual cost of weeding is 250 yuan. One-time laying will benefit for many years! The weeding effect is better, and it can also reduce water evaporation, reduce nutrient loss, and improve soil compaction.
The old farmers wish that the eco-degradable orchard grass cloth is an environmentally friendly material that inhibits the degradability of weeds and maintains soil moisture. The degradable grass cloth is used in outdoor potted flowers, nurseries, large gardens, orchards such as The planting of citrus orchards, apple orchards, cherry orchards, dragon fruit, blueberries, kiwis, grapes and other orchards has been widely used in the field of weed prevention. After the ground cloth is used, a large amount of manual weeding costs and fertilizer costs can be saved. With the use of degradable grass cloth, it can not only maintain the stability of soil moisture, but also solve the problem of soil microorganisms and soil compaction more conveniently. Issues such as crop growth.
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