Increasing potato yields with additional water and increased soil temperature
Increasing potato yields with additional water and increased soil temperature
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DOI：
10.1016/j.agwat.2005.02.006
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发表时间：
2005-12
影响因子：
6.7
通讯作者：
Xiao-Ling Wang;Fengmin Li;Yu Jia;W. Shi
中科院分区：
文献类型：
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作者：
Xiao-Ling Wang;Fengmin Li;Yu Jia;W. Shi
在中国的半干旱黄土地区等旱地作物生产中已采用了许多节水措施。在本研究中，进行了一项田间试验，以检验在塑料覆盖的田埂中种植并由沟渠降雨收集（PRFRH）系统供水的马铃薯作物的产量提升情况。实验包括7个处理：（1）30厘米宽的田垅覆盖塑料薄膜（P30），（2）45厘米宽的田垅覆盖塑料薄膜（P45），（3）60厘米宽的田垅覆盖塑料薄膜（P60），（4）30厘米宽的田垅不覆盖（B30），（5）45厘米宽的田垅不覆盖（B45），（6）60厘米宽的田垅不覆盖。 (B60)、(7)土面平整无覆盖(B0)。 PRFRH 系统提高了田埂中的温度和养分的利用率，并保持了田埂中的土壤湿度。它促进了马铃薯生长前期的作物生长，减轻了马铃薯生长后期的水分胁迫。 PRFRT 系统的马铃薯产量和水分利用效率显着（P<0.01）高于其他系统。最佳的土坎宽度在40至45厘米之间。
Many water saving practices have been adopted to dryland crop production such as in semiarid loess regions of China. In the present study, a field experiment was conducted to examine the yield promotion of potato crops cultivated with in plastic-covered ridges and supplied with water from a furrow rainfall harvesting (PRFRH) system. The experiment included seven treatments: (1) 30cm wide ridge covered with plastic film (P30), (2) 45cm wide ridge covered with plastic film (P45), (3) 60cm wide ridge covered with plastic film (P60), (4) 30cm wide ridge without covering (B30), (5) 45cm wide ridge without covering (B45), (6) 60cm wide ridge without covering (B60), (7) soil surface flat without covering (B0). The PRFRH system increased temperature and availability of nutrients in the ridges, and maintained soil moisture in ridges. It promoted crop growth during the early period and diminished water stress at the later stages of potato growth. Potato yield as well as the water use efficiency in the PRFRT system was significantly (P<0.01) higher than in the other systems. The best ridge width was between 40 and 45cm.