scholarly journals Effect of Prolonged Irrigated Fodders on Soil Physical Properties and Agronomic Water Use Efficiency

2013 ◽  
Vol 1 (3) ◽  
pp. 77-93
Author(s):  
Zahid Murtaza ◽  
Waqas Ahmad ◽  
Jamil Shafi ◽  
Muhammad Shoaib ◽  
Muhammad Aqeel Sarwar ◽  
...  
Keyword(s):  
Physical Properties ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Physical Properties ◽  
Use Efficiency

scholarly journals Effect of Cropping System under Tillage and Mulching on Soil Physical Properties and Water Use Efficiency by Maize (Zea mays L.) in Southern Benin

2020 ◽  
pp. 8-22
Author(s):  
Alladassi Félix Kouelo ◽  
Mahugnon Socrate Agonvinon ◽  
Julien Avakoudjo ◽  
Tobi Moriaque Akplo ◽  
Pascal Houngnandan ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Temperature ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Cover ◽  
Soil Physical Properties ◽  
No Tillage ◽  
Use Efficiency ◽  
Maize Grain ◽  
Southern Benin

In agriculture, water has become a limiting factor because of the effects of climate change felt by farmers. This situation seriously compromises agricultural production through pockets of drought, delayed and early cessation of rains and then an increase in the length of the dry season. Aims: This study aims to evaluate the effect of tillage and vegetative mulch on soil physical properties and maize water use efficiency in ferralitic soil of southern Benin. Study Design: The Factorial Complete Randomized Block Design with 4 repetitions was implemented. Place and Duration of Study: The experimental site is located at Allada, in southern Benin, and conducted between May 2017 and July 2017. Methodology: Tillage (No-tillage, flat tillage) and straw mulch rate (0%, 50%, 75% soil cover) and their interaction was been tested during this study. The physical properties of soil and maize water use efficiency were determined. Results: Tillage significantly reduced soil temperature by 2.65% and improved soil permeability by 60%. Tillage also significantly improved water use efficiency for maize grain from 3.88 to 7.88 kg.mm-1.ha-1 and for maize biomass from 12.67to 23.31 kg.mm-1.ha-1. Mulching significantly improved soil moisture from 11.54% to 13.13%, water use efficiency for maize grain from 4.26 to 7.58kg.mm-1.ha-1 and for maize biomass from 14.50 to 22.05 kg.mm-1.ha-1. Mulching also significantly reduced soil temperature by 11%. The combination of tillage and mulching significantly improved water use efficiency for maize grain and biomass production. The highest water use efficiency (8.87 kg.mm-1.ha-1 for maize grain and 25.17 kg.mm-1.ha-1 for maize biomass) was achieved with tillage combined with mulching at 75% soil cover. The interaction between these two factors significantly reduced soil temperature by 11.30% (tillage combined with mulch at 75% soil cover) compared to control (no-tillage and no-mulch). Conclusion: This study showed that tillage and mulching at 50% or 75% soil cover improves soil physical properties and water use efficiency for maize production in the context of climate change.

Increasing intrinsic water-use efficiency over the past 160 years does not stimulate tree growth in southeastern China

2018 ◽  
Vol 76 (2) ◽  
pp. 115-130 ◽  
Author(s):  
G Guo ◽  
K Fang ◽  
J Li ◽  
HW Linderholm ◽  
D Li ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Tree Growth ◽  
Southeastern China ◽  
The Past ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency

A comparative appraisal of urea super granule application in raised bed and prilled urea application in conventional planting for transplanted boro rice (Oryza sativa)

2016 ◽  
Vol 6 (1) ◽  
pp. 822-832
Author(s):  
Halim Mahmud Bhuyan ◽  
Most. Razina Ferdousi ◽  
Mohammad Toufiq Iqbal ◽  
Ahmed Khairul Hasan
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
N Fertilizer ◽  
Deep Placement ◽  
Prilled Urea ◽  
Planting Methods ◽  
Weed Infestation ◽  
Use Efficiency ◽  
Raised Bed ◽  
Boro Rice

Utilization of urea super granule (USG) with raised bed cultivation system for transplanted boro (winter, irrigated) rice production is a major concern now days. A field experiment was conducted in the chuadanga district of Bangladesh to compare the two cultivation methods: deep placement of USG on raised bed with boro rice, and prilled urea (PU) broadcasting in conventional planting. Results showed that USG in raised bed planting increased grain yields of transplanted boro rice by up to 18.18% over PU in conventional planting. Deep placement of USG in raised bed planting increased the number of panicle m-2, number of grains panicle-1 and 1000-grains weight of boro rice than the PU in conventional planting. Better plant growth was observed by deep placement of USG in raised bed planting compared to PU in conventional planting. Sterility percentage and weed infestation were lower on USG in raised bed planting compared to the PU in conventional planting methods. Forty seven percent irrigation water and application time could be saved by USG in raised bed planting than PU in conventional planting. Deep placement of USG in bed saved N fertilizer consumption over conventional planting. Water use efficiency for grain and biomass production was higher with deep placement of USG in bed planting than the PU broadcasting in conventional planting methods. Similarly, agronomic efficiency of N fertilizer by USG in bed planting was significantly higher than the PU broadcasting in conventional planting. This study concluded that deep placement of USG in raised bed planting for transplanted boro rice is a new approach to achieve fertilizer and water use efficiency as well as higher yield and less water input compared to existing agronomic practices in Bangladesh.

Effects of Irrigation Amount on Grain Starch Content, Starch Synthase Activity, and Water Use Efficiency in Wheat

2009 ◽  
Vol 35 (2) ◽  
pp. 324-333 ◽  
Author(s):  
Peng-Fei CHU ◽  
Zhen-Wen YU ◽  
Xiao-Yan WANG ◽  
Tong-Hua WU ◽  
Xi-Zhi WANG
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Starch Content ◽  
Starch Synthase ◽  
Irrigation Amount ◽  
Grain Starch ◽  
Use Efficiency
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