1. Gaoyou City user Wang asked a question on February 18:
How is wheat currently managed?
Professor Zhu Xinkai of Yangzhou University replied: timely ditch cleaning and moisture, precipitation and stain prevention; Over-prosperous wheat fields are suppressed or controlled in a timely manner, and the prosperity is controlled and strengthened; Weeding in a timely manner according to the grass phase in the field, and timely prevention and control of sheath blight; According to the seedling conditions, the appropriate amount of top dressing is appropriate.
2. Xinghua City user Lu asked a question on February 16:
We are from Xinghua, Taizhou, and I use 70 catties of fertilizer per mu for the bottom of my wheat field, and then 20 catties of urea around December 10. At present, the leaf color is fine, I don't know if I need to fertilize it at the moment. Wheat was planted from October 28th to November 5th?
Professor Guo Wenshan of Yangzhou University replied: the current growth is normal, no need to fertilize for the time being, in early March to apply jointing fertilizer, and then apply booting fertilizer according to the seedling situation. If the base fertilizer is 70 kg of compound fertilizer, the two fertilizers can be urea-based, the first mu to apply 15 to 20 kg of urea or three fifteen compound fertilizer 20 to 30 kg plus 10 kg of urea, the second 10 to 15 kg of urea, the specific dosage should be adjusted according to the seedling situation. In addition, the quality of your seeding needs to be improved, and the emergence of seedlings is uneven.
3. Gaoyou City, Gaoyou City, Chengnan Economic New Zone, Ju asked a question on February 14:
How to manage wheat after snow?
Chen Jingjing, senior agronomist of Yangzhou Agricultural Technology Comprehensive Service Center, replied: The fields with good seedling conditions should be cleared in time to ensure that the stagnant water is discharged in time to prevent staining; Fields with poor seedling condition or severe frost damage can be applied with urea and other fertilizers after the snow has completely melted to promote growth and recovery, and also do a good job of ditch cleaning.
4. Sihong County users asked questions on February 16:
May I ask teachers, how long is the effective period of potassium chloride fertilizer, is it better to sprinkle before the rain or after the rain?
Wang Xukui, a researcher from Jiangsu Provincial Cultivated Land Quality and Agricultural Environmental Protection Station, replied: potassium chloride fertilizer is soluble in water but will not volatilize, and if the rainfall is heavy and easy to lose, it is recommended to sprinkle it when it is wet after rain.
5. Xu, a user of Rucheng Street, Rugao City, asked a question on February 14:
Are there herbicides in fava bean fields?
Chen Xin, a researcher at Jiangsu Academy of Agricultural Sciences, replied: broad bean field herbicides can be divided into two kinds of herbicides after sowing and after seedlings, and there are very few herbicides registered on broad beans. After sowing and seedling, the control of gramineous weeds can be done with quinoxalin. To control broad-leaved weeds, we can use weedicide pine, pay attention to the requirements of environmental conditions.
6. Xue, a user of Huaihe Town, Xuyi County, asked:
What is the appropriate amount of edamame per mu of open mulch?
Wu Chunfang, a researcher at Jiangsu Yanjiang Regional Institute of Agricultural Sciences, replied: about 10 catties, depending on the size of the grain, the density per mu, and 15,000 plants.
7. Gaoyou City user Zhao asked a question on February 15:
Do zucchini need to be put on a shelf?
Wang Shubin, a researcher at the Jiangsu Academy of Agricultural Sciences, replied: It mainly depends on the characteristics of the variety, and generally does not need to be framed.
8. Sihong County user Zhu asked a question on February 15:
When did Sunshine Rose start to chase balancing fertilizer?
Professor Tao Jianmin of Nanjing Agricultural University replied: After the fruit is expanded.
9. Cao Mou, a user of Yongyang Street, Lishui District, Nanjing City, asked on February 18:
How to manage peach trees in spring?
Professor Gao Zhihong of Nanjing Agricultural University replied: The management of peach trees in early spring is mainly based on budding and thinning flowers and fruits, and quality management is mainly carried out in the later stage, and attention is paid to fertilizer and water management. In addition, it is necessary to prevent the cold of spring before and after Qingming.
10. Zhuo, a user from outside the province, asked a question on February 10:
May I ask if there is no spacing between the leaves on the top of Yuxiang, the pole is not long, it has been stopped for 40 days, and there are no buds (a very small number of tall buds have appeared), what is the situation?
Professor Chen Fadi of Nanjing Agricultural University replied: There is a variety of early and fragrant varieties, which can catch up with the flowering period of Qingming, but it must be regulated with gibberellin, otherwise the internodes will not elongate, and in addition, low temperature will also affect elongation.
11. Chen, a user in Qingkou Town, Ganyu District, Lianyungang City, asked on February 15:
How to raise crab claw orchid in winter?
Professor Liu Guohua of Jiangsu Agriculture and Forestry Vocational and Technical College replied: The ** is a phalaenopsis orchid instead of a crab claw orchid. Crab claw orchid likes warm climate, well-drained cohesive loam soil, good to keep warm in winter, and properly replenish water (dry, dry, wet and wet).
12. Xuyi County user Xue asked a question on January 14:
How can you tell the difference between wild soft-shelled turtle and domesticated turtles?
Wang Minghua, senior engineer of Jiangsu Freshwater Fisheries Research Institute, replied: the color of the artificially bred soft-shelled turtle is mostly dark black, hypertrophied, and a lot of fat can be seen in the section, and the color of the wild back and bottom of the nail is mostly dark yellow, carefully observe the limbs, ** is also light yellow, and it is rare to see a large amount of oil when dissected. The back of the captive-bred soft-shelled turtle is rough and dull, and it feels uneven and prickly when touched by hand, while the back of the wild soft-shelled turtle is very shiny and smooth to touch.
13. Zhou, a user in Daduo Town, Xinghua City, asked a question on February 16:
Please tell me what materials are needed for self-made expansion of lactic acid bacteria, what is the proportion, and how to use it?
Zhou Jun, a researcher at Jiangsu Freshwater Fisheries Research Institute, replied: Tangkou lactic acid bacteria can be expanded and cultivated, generally adding brown sugar, but corn can also be added for fermentation. During the fermentation period, the following points should be noted: first, the fermentation barrel should be sterilized to reduce the pollution of miscellaneous bacteria; Second, the tap water is aerated for one day after being put into the bucket to remove the residual chlorine in the tap water; Third, the proportion of brown sugar added is 2%-3%; Fourth, add water and then cover the lid to seal it to achieve full anaerobic fermentation and promote the growth of lactic acid bacteria.