Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1392
8
1
gregorian
2013
11
1
15
6
online
1
fulltext
en
Effect of Manure Management on the Temporal Variations of Dryland Soil Moisture and Water Use Efficiency of Maize
Degraded soils in Northwest China are mostly nonproductive due to imbalanced nutrient and inadequate water supply. The effects of manure application at three different rates (7.5, 15.0, and 22.5 t ha<sup>–1</sup>) combined with chemical fertilizers on soil water and Water-Use Efficiency in maize [compared with chemical fertilizers (control)], under semi-arid conditions in dark Loessial soil and over a period of four years were studied to provide scientific support for water management. High manure application significantly reduced soil water evaporation throughout the fallow period as compared with control. It significantly increased soil water storage capacity at the big trumpet growth stage of the crop, and with the fertilization application years continued (P< 0.05). Manure application improved soil water holding capacity at the tasseling and grain filling stages. It decreased evapotranspiration at the jointing–big trumpet and tasseling–grain filling stages. It as well improved Water-Use Efficiency by 16.67 to 295.42% at the jointing–big trumpet stage <em>vs.</em> 9.38-68.96% at the tasseling-grain filling stage and 8.51 to 36.58% for the whole growth period of the crop maize. With a continuation of the fertilizer application years, water-use efficiency at the tasseling-grain filling stage was significantly improved with increasing manure application rates (P< 0.05). Medium and High Manure application rates significantly increased water-use efficiency at the big trumpet–tasseling and grain filling-maturity stages as compared with control (P< 0.05). With manure application years continued, soil nutrient was no longer the major factor limiting the crop’s water-use efficiency. The most promising manure application rate adopted to improve water-use efficiency was recorded as 15.0 t ha<sup>–1</sup>.
Dry land,Farmyard manure,Soil water storage,Water use efficiency
1293
1304
http://jast.modares.ac.ir/browse.php?a_code=A-23-11598-79&slc_lang=en&sid=23
X. J.
Wang
X. J.
Wang
100319475328460046840
100319475328460046840
Yes
Research Center for China Water Issues, China Agricultural University, 100083, Beijing, People Republic of China.
Research Center for China Water Issues, China Agricultural University, 100083, Beijing, People Republic of China.
Zh. K.
Jia
Zh. K.
Jia
100319475328460046841
100319475328460046841
No
China Water-saving Agricultural Academy in Arid Areas, Northwest A and F University,
China Water-saving Agricultural Academy in Arid Areas, Northwest A and F University,
L. Y.
Liang
L. Y.
Liang
100319475328460046842
100319475328460046842
No
College of Resources and Environment, Northwest A and F University, Yangling 712100, Shaanxi, People Republic of China.
College of Resources and Environment, Northwest A and F University, Yangling 712100, Shaanxi, People Republic of China.
Sh. Zh.
Kang
Sh. Zh.
Kang
100319475328460046843
100319475328460046843
No
Research Center for China Water Issues, China Agricultural University, 100083, Beijing, People Republic of China.
Research Center for China Water Issues, China Agricultural University, 100083, Beijing, People Republic of China.