| Effects of vertical rotary subsoiling tillage on soil moisture, fertility and potato yield in the northwest semi\|arid area |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2021.01.05 |
| Key Words: the northwest semi\|arid area vertical rotary sub\|soiling tillage soil moisture soil fertility soil physical and chemical properties potato yield |
| Author Name | Affiliation | | WANG Juan | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | TAN Weijun | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | CHEN Zixiong | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | XU Qixin | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | HE Wanchun | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China | | HUANG Kai | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China | | MENG Hongmei | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | MA Haitao | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Dingxi Baiquan Limited Liability Company of Potato, Dingxi,GanSu 743000, China | | CHENG Xiaoli | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China
Anding District Garden Workshop in Dingxi, Dingxi, Gansu 743000, Chian | | ZHANG Simiao | Dingxi Hydrological and Water Resources Detection Station of Gansu, Dingxi, GanSu 743000, China | | MA Ning | Dingxi Agricultural Science Research Institute, Dingxi, GanSu 743000, China |
|
| Hits: 1064 |
| Download times: 339 |
| Abstract: |
| In order to explore the effects of vertical rotary subsoiling tillage on potato growth, yield, and soil physical and chemical properties in the northwest semi\|arid area, a field experiment with three treatments, traditional tillage for 15 cm depth (T), deep ploughing tillage for 30 cm depth(D), and vertical rotary subsoiling tillage for 40 cm depth (V) were set up in 2018 and 2019 year. Soil bulk density, wilting coefficient, field water holding capacity, Alkali\|hydrolyzed nitrogen, available phosphorus, available potassium, organic matter content, and yield of potato were studied before sowing, flowering, and after harvesting. The results showed that： compared with T and D treatments, V treatment increased potato seedling emergence rate by 3.21% and 1.36%, and decreased soil bulk density by 3.6%~12.8% in 20~40 cm soil. With increasing soil depth, the soil wilting coefficient decreased gradually before sowing, flowering, and after harvesting. The average soil wilting coefficients of V treatment were 0.14%, 0.14%, and 0.11% in 2018,and 0.02%, 0.06%, and 0.02% in 2019, respectively. With increasing soil depth, the soil water holding capacity of different treatments decreased gradually before sowing, flowering, and after harvest. The field water holding capacity of V treatment was higher by 1.1% and 0.7%, 1.0% and 0.7% than that of T and D treatment at flowering and harvest stages, respectively; With the advance of growth period, soil nutrients at different levels of each treatment had a decreasing trend, but the change range of soil nutrients in each layer of V treatment was smaller than that of T and D after harvesting. In 2018, the field water holding capacity of V treatment at different depths was higher than that of T and D. Compared with V treatment in 2019, the average yields of D and T treatments werehigher by 4.4% and 19.1%. Through the study, the effects of vertical rotary sub\|soiling tillage on soil physical and chemical properties and potato water use and yield were clarified, which provided theoretical basis for the promotion of vertical rotary sub\|soiling tillage technology in semi\|arid area. |
|
|
|