In order to grasp the change trend of cultivated land quality in the implementation area of the project and evaluate the effect of rotation and fallow scientifically, the expert team of dry land soil and fertilizer and water management post of the national green manure industrial technology system cooperated with the provincial agricultural technology promotion station. On April 8-11, 2020, led by Jiao Jiaguo, associate professor of the school of resources and environment of Nanjing Agricultural University, the team carried out the research on rice production in 16 counties (districts and cities) of the province Fresh grass and soil samples were collected and evaluated in the monitoring plot of green manure rotation. Jiao Jiaguo's sampling team (Lishui)
Field sampling (Lishui)
Field sampling (Kunshan)
The results show that the overall growth of green manure in our province is good, among which ziyunying grows vigorously in Changzhou City, Zhenjiang Danyang, Nanjing Gaochun, Lishui and other bases.
Ziyunying flower sea (Changzhou)
Ziyunying grows vigorously (Gaochun)
Ziyunying grows healthily (Danyang)
Ziyunying grows well (Lishui)
The investigation found that some bases began to plant sweet potato. In terms of growth, the adaptability of sweet potato was stronger and the overall seedling situation was better than that of ziyunying.
Sweet potato grows vigorously (Wujin)
Sweet potato blossoms (Danyang)
During the soil investigation of rice and Astragalus ziyunying rotation model, it was found that earthworm and earthworm manure increased significantly in ziyunying planting bases, such as Zhenjiang Yangzhong, Nanjing Lishui, Changzhou, etc., soil ecological environment improved significantly, and more and more wild loach, eel and lobster appeared in the process of rice land preparation.
Earthworm (Changzhou)
Earthworm dung (Yangzhong)
In Yixing, Wuxi and Liuhe, Nanjing, ziyunying has a very good landscape function in addition to crop rotation and soil fertility, attracting many tourists to visit.
Ziyunyinghuahai adds color to rural tourism (Yixing)
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