scholarly journals Leaf area index, evapotranspiration and dry Bio-mass of maize (Zea mays L.)

MAUSAM ◽  
2021 ◽  
Vol 43 (2) ◽  
pp. 143-146
Author(s):  
A. CHOWDHURY ◽  
H. P. DAS ◽  
S. B. GAONKAR
Keyword(s):  
Zea Mays ◽  
Water Use Efficiency ◽  
Water Use ◽  
Zea Mays L ◽  
Maize Yield ◽  
Total Rainfall ◽  
Crop Season ◽  
Area Index ◽  
Dry Biomass ◽  
Use Efficiency

Based on the crop season data for the years 1989 and 1990, LAI, biomass, water use efficiency, soil evaporation, potential and actual plant transpiration have been determined for maize. The ET/EP ratio has been correlated with LAI and dry biomass. Correlations were also determined between some of the above crop characteristic factors as also with moisture in topsoil profile.  The analysis indicated that total rainfall during crop season does not have large bearing on the maize yield. The water use efficiency appears to be nearly independent of atmospheric demand. Actual and potential plant transpirations and the evaporation from the soil could be computed from a simple model.    

scholarly journals Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 313
Author(s):  
Guoqiang Zhang ◽  
Bo Ming ◽  
Dongping Shen ◽  
Ruizhi Xie ◽  
Peng Hou ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Leaf Area Index ◽  
Water Use ◽  
Plant Density ◽  
Maize Yield ◽  
Area Index ◽  
Irrigation Level ◽  
Use Efficiency ◽  
The Relationship

Achieving optimal balance between maize yield and water use efficiency is an important challenge for irrigation maize production in arid areas. In this study, we conducted an experiment in Xinjiang China in 2016 and 2017 to quantify the response of maize yield and water use to plant density and irrigation schedules. The treatments included four irrigation levels: 360 (W1), 480 (W2), 600 (W3), and 720 mm (W4), and five plant densities: 7.5 (D1), 9.0 (D2), 10.5 (D3), 12.0 (D4), and 13.5 plants m−2 (D5). The results showed that increasing the plant density and the irrigation level could both significantly increase the leaf area index (LAI). However, LAI expansion significantly increased evapotranspiration (ETa) under irrigation. The combination of irrigation level 600 mm (W3) and plant density 12.0 plants m−2 (D4) produced the highest maize yield (21.0–21.2 t ha−1), ETa (784.1–797.8 mm), and water use efficiency (WUE) (2.64–2.70 kg m−3), with an LAI of 8.5–8.7 at the silking stage. The relationship between LAI and grain yield and evapotranspiration were quantified, and, based on this, the relationship between water use and maize productivity was analyzed. Moreover, the optimal LAI was established to determine the reasonable irrigation level and coordinate the relationship between the increase in grain yield and the decrease in water use efficiency.

scholarly journals Effect of tillage, sowing time and irrigation levels on soil available moisture and water use efficiency of maize (Zea mays L.)

2020 ◽  
Vol 8 (3) ◽  
pp. 1466-1473
Author(s):  
Archana Kumari ◽  
Sanjay Kumar ◽  
Mainak Ghosh ◽  
Swaraj Kumar Dutta ◽  
Amit Kumar Pradhan ◽  
...  
Keyword(s):  
Zea Mays ◽  
Water Use Efficiency ◽  
Water Use ◽  
Zea Mays L ◽  
Sowing Time ◽  
Use Efficiency ◽  
Irrigation Levels

scholarly journals Yield-phenology relations and water use efficiency of maize (Zea mays L.) in ridge-furrow mulching system in semiarid east African Plateau

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Fei Mo ◽  
Jian-Yong Wang ◽  
Feng-Min Li ◽  
Simon N. Nguluu ◽  
Hong-Xu Ren ◽  
...  
Keyword(s):  
Zea Mays ◽  
Water Use Efficiency ◽  
Water Use ◽  
Zea Mays L ◽  
East African ◽  
Use Efficiency
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