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On March 31, 2021, the Chongqing Agricultural Technology Extension Station invited relevant personnel to participate in the national key research and development program project "Integrated Research and Demonstration of Citrus Fertilizer and Pesticide Reduction Technology" (2017YFD0202002).
Application efficiency enhancement technology integration and demonstration thousand acres base, Xingsheng Navel Orange Professional Cooperative in Dachang Town, Wushan County, the late-maturing navel orange fertilizer and pesticide double reduction demonstration park conducted on-site production testing
.
The expert team explored the base situation on site, measured the planting density, and confirmed that the average planting rate in the whole garden was 44 plants/mu (3×5 meters).
The whole tree was picked and weighed separately.
Three result trees were randomly selected.
Weighed, the plant yields were 133.
0 kg, 75.
4 kg, and 64.
6 kg respectively.
The average plant yield was 91.
0 kg, which translates to 4004.
0 kg per mu; the fruit size of the whole tree is neat, measured by a fruit picker, all over 65 mm, minus the skin Thick deformed fruit, the first grade rate is 95%
.
Since the start of the project in 2017, the project team’s weight loss focus has been on nitrogen control, phosphorus reduction, and potassium reduction, so as to improve quality, increase production and increase efficiency
.
Using straw and grass cultivation to replace chemical fertilizers (nitrogen and phosphorus), the current average plant application of 13:5:27 compound fertilizer is 1.
75 kg, of which nitrogen is 10.
01 kg/mu, which is 4.
99 kg/mu lower than the 15 kg/mu international safety line.
33.
27%; phosphorus 3.
85 kg/mu, low-phosphorus formula to ensure the safety of water quality in the Three Gorges reservoir area; potash fertilizer has increased
.
Through the whole garden nutrition diagnosis to monitor the effect of organic fertilizer instead of chemical fertilizer, guide the control of abundance and replenishment, balanced fertilization, and by supplementing the lack of nutrient elements such as zinc, boron, magnesium, etc.
, to ensure the continuous high-quality and high-yield of citrus
.
[Source: Chongqing Agricultural Technology Extension Station]
Application efficiency enhancement technology integration and demonstration thousand acres base, Xingsheng Navel Orange Professional Cooperative in Dachang Town, Wushan County, the late-maturing navel orange fertilizer and pesticide double reduction demonstration park conducted on-site production testing
.
The expert team explored the base situation on site, measured the planting density, and confirmed that the average planting rate in the whole garden was 44 plants/mu (3×5 meters).
The whole tree was picked and weighed separately.
Three result trees were randomly selected.
Weighed, the plant yields were 133.
0 kg, 75.
4 kg, and 64.
6 kg respectively.
The average plant yield was 91.
0 kg, which translates to 4004.
0 kg per mu; the fruit size of the whole tree is neat, measured by a fruit picker, all over 65 mm, minus the skin Thick deformed fruit, the first grade rate is 95%
.
Since the start of the project in 2017, the project team’s weight loss focus has been on nitrogen control, phosphorus reduction, and potassium reduction, so as to improve quality, increase production and increase efficiency
.
Using straw and grass cultivation to replace chemical fertilizers (nitrogen and phosphorus), the current average plant application of 13:5:27 compound fertilizer is 1.
75 kg, of which nitrogen is 10.
01 kg/mu, which is 4.
99 kg/mu lower than the 15 kg/mu international safety line.
33.
27%; phosphorus 3.
85 kg/mu, low-phosphorus formula to ensure the safety of water quality in the Three Gorges reservoir area; potash fertilizer has increased
.
Through the whole garden nutrition diagnosis to monitor the effect of organic fertilizer instead of chemical fertilizer, guide the control of abundance and replenishment, balanced fertilization, and by supplementing the lack of nutrient elements such as zinc, boron, magnesium, etc.
, to ensure the continuous high-quality and high-yield of citrus
.
[Source: Chongqing Agricultural Technology Extension Station]
