Open AccessEffect of Different Irrigation Patterns and Covering Methods on Onion Water Consumption Characteristics
Author(s) -
Heran Deng,
Peng Wang,
Hengjia Zhang,
Ru Xiao,
Yongling Zhang,
Fuqiang Li,
Keqian Wu,
Chao Liang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/643/1/012124
Subject(s) - mulch , irrigation , environmental science , water consumption , soil water , soil cover , water storage , water content , plastic mulch , agronomy , environmental engineering , soil science , biology , geology , geotechnical engineering , geomorphology , inlet
In order to investigate the influence of the water consumption characteristics of onions in the Hexi Corridor, this paper tested the water consumption of onions in the Oasis by using the early golden dragon onion as a test material and randomly grouped it into different irrigation modes and cover methods. There were five treatments in the experiment, and the water consumption of onion was measured in each reproductive period, and the results showed that: (1) the soil water storage decreased with the increase of water loss, i.e. the soil water storage size was T1>T2>T3. The difference in soil water storage between black mulch and transparent mulch was smaller, but significantly larger than that of fine sand mulch. (2) The water consumption and water intensity of onion showed a decreasing trend with the increase of the adjustment loss, and the water consumption of fine sand cover > transparent mulch cover > black mulch cover. (2) The water consumption and water intensity of onions decreased with the increase of the regulation deficit, and the water consumption of fine sand mulch was more than that of transparent mulch and black mulch.