Soil Type, Climatic Regime, and the Response of Water Use Efficiency to Crop Management

2000 ◽  
Vol 92 (5) ◽  
pp. 814-820 ◽  
Author(s):  
Peter J. Gregory ◽  
Lester P. Simmonds ◽  
Colin J. Pilbeam
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Soil Type ◽  
Crop Management ◽  
Climatic Regime ◽  
Use Efficiency

Water use efficiency and crop water balance of rainfed wheat in a semi-arid environment: sensitivity of future changes to projected climate changes and soil type

2015 ◽  
Vol 123 (3-4) ◽  
pp. 565-579 ◽  
Author(s):  
Yanmin Yang ◽  
De Li Liu ◽  
Muhuddin Rajin Anwar ◽  
Garry O’Leary ◽  
Ian Macadam ◽  
...  
Keyword(s):  
Water Balance ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Type ◽  
Climate Changes ◽  
Arid Environment ◽  
Crop Water ◽  
Use Efficiency ◽  
Rainfed Wheat ◽  
Semi Arid

Effect of seedbed cultivation techniques, variety, soil type and sowing time, on brassica dry matter yields, water use efficiency and crop nutritive characteristics in western Victoria

2002 ◽  
Vol 42 (7) ◽  
pp. 945 ◽  
Author(s):  
J. L. Jacobs ◽  
G. N. Ward ◽  
A. M. McDowell ◽  
G. Kearney
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Type ◽  
Dry Matter ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Sowing Time ◽  
Use Efficiency ◽  
Cultivation Techniques

Effect of cultivation practice and sowing time on soil moisture retention at sowing, growth rates, dry matter yield, water use efficiency and nutritive characteristics (metabolisable energy, crude protein, neutral detergent fibre, water-soluble carbohydrates and starch) of turnip, pasja and rape was determined on 2 soil types (site A and B) over 2 years. Cultivation treatments were: optimum full inversion, an optimum non-inversion cultivation and over cultivated. At each site, cultivation treatments were imposed at 2 different times (early and late).Results showed few differences in soil moisture at sowing between the 3 cultivation systems. Where seedbeds were prepared earlier rather than later, soil moisture at sowing was higher. Given that there was relatively little difference in soil moisture between cultivation treatments within a sowing time, it is likely that rainfall events may have confounded cultivation effects.Apart from year 2 at site A, the water use efficiency of turnip was higher than for pasja and rape. It is proposed that the lower value in year 2 may be due to root development being retarded by low moisture availability, particularly at the later sowing date, thus leading to a lower dry matter yield.Despite no cultivation effects on soil moisture at sowing, there appeared to be clear advantages for the full inversion technique in terms of subsequent weed germination. Generally, weed numbers post germination were lower for this cultivation method compared with both non-inversion techniques. In conclusion, the cultivation techniques used had little effect on soil moisture at sowing and subsequent dry matter yields, provided the resultant seedbed was well-prepared, fine, firm and weed free. Full inversion cultivation techniques in areas where broad-leaved weeds are a problem may substantially reduce subsequent weed burdens. Early sowing where possible may reduce the likelihood of crop failure through the provision of adequate soil moisture at sowing and increase the incidence of rain during the growing period. Timing of sowing will vary according to paddock requirements during early spring (e.g. grazing or forage conservation), soil type, and trafficability for cultivation.

Alternative and Non-conventional Soil and Crop Management Strategies for Increasing Water Use Efficiency

2020 ◽  
pp. 323-338
Author(s):  
Farah Riaz ◽  
Muhammad Riaz ◽  
Muhammad Saleem Arif ◽  
Tahira Yasmeen ◽  
Muhammad Arslan Ashraf ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Management Strategies ◽  
Crop Management ◽  
Use Efficiency

Introduction: Can Water Use Efficiency Be Modeled Well Enough to Impact Crop Management?

2009 ◽  
Vol 101 (3) ◽  
pp. 423-425 ◽  
Author(s):  
Steven R. Evett ◽  
Judy A. Tolk
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Management ◽  
Use Efficiency

Water use efficiency of dryland wheat in the Loess Plateau in response to soil and crop management

2013 ◽  
Vol 151 ◽  
pp. 9-18 ◽  
Author(s):  
Shulan Zhang ◽  
Victor Sadras ◽  
Xinping Chen ◽  
Fusuo Zhang
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Loess Plateau ◽  
Crop Management ◽  
The Loess Plateau ◽  
Use Efficiency

Water use efficiency of dryland maize in the Loess Plateau of China in response to crop management

2014 ◽  
Vol 163 ◽  
pp. 55-63 ◽  
Author(s):  
Shulan Zhang ◽  
Victor Sadras ◽  
Xinping Chen ◽  
Fusuo Zhang
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Loess Plateau ◽  
Crop Management ◽  
The Loess Plateau ◽  
Use Efficiency

scholarly journals Canopy application of film antitranspirants over the reproductive phase enhances yield and yield-related physiological traits of water-stressed oilseed rape (Brassica napus)

2016 ◽  
Vol 67 (7) ◽  
pp. 751 ◽  
Author(s):  
Michele Faralli ◽  
Ivan G. Grove ◽  
Martin C. Hare ◽  
Roger D. Boyle ◽  
Kevin S. Williams ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Water Use Efficiency ◽  
Water Deficit ◽  
Water Use ◽  
Oilseed Rape ◽  
Dry Matter ◽  
Crop Management ◽  
Management Tool ◽  
Film Forming ◽  
Use Efficiency

Oilseed rape (Brassica napus L.) yield is strongly decreased by water deficit, and crop-management solutions are urgently required considering the emerging difficulties in breeding for drought-tolerant varieties. Film-forming antitranspirants (polymers) are agrochemicals that, applied to the crop canopy, mechanically block the stomata and decrease canopy transpiration. In this study, the drought-protection efficacy of an adaxial-surface application at the flowering stage of two film-forming treatments (poly-1-p-menthene and di-1-p-menthene) was investigated in pot-grown, droughted oilseed rape over two glasshouse experiments. Over the drought period, the two compounds reduced leaf stomatal conductance (P < 0.001), and as the soil moisture deficit increased, they sustained carbon assimilation and improved water-use efficiency with differing efficacy. Following the antitranspirant treatments, ABA concentration in leaves and reproductive organs was severely reduced and this was accompanied by significant improvements in leaf and flower–pod water potential. Drought significantly decreased the seed dry matter production of oilseed rape plants, by 39% on average. The treatments significantly increased seed dry matter by 13% (poly-1-p-menthene) and 17% (di-1-p-menthene), on average, compared with the unsprayed droughted plants, as a result of a significant increase in number of pods per plant, by 11% and 13%, respectively. The results suggest that film-forming compounds may be a useful crop-management tool to avoid severe drought-induced yield losses in oilseed rape by improving water-use efficiency and plant water status, thus alleviating ABA signalling under water deficit.

scholarly journals Soil and Crop management relation with water use efficiency in Dryland agriculture

2020 ◽  
Vol 5 (01) ◽  
pp. 75-89
Author(s):  
Attia El Gayar
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Production ◽  
Management Practices ◽  
Production Systems ◽  
Crop Management ◽  
Sub Saharan Africa ◽  
Future Research ◽  
Dry Land ◽  
Use Efficiency

The problem of shortage of water to crops can be resolved by increasing total water supply available to plants, increasing water use relative to other losses and efficient management of scarce water. Biophysically, solutions to many of the problems will require the improvement of soil, water, and crop management at the field, plot, and farm level: first, to increase the capture and retention of incoming (rain) water; and second, to maximize the proportion of that water productively transpired by the crop. Dry land agriculture under rain fed conditions is found mainly in Africa, the Middle East, Asia, and Latin America. In the harsh environments of Sub-Saharan Africa (SSA) and West Asia and North Africa (WANA), water is the principal factor limiting crop yield. A review has been carried out on soil and crop management research that can increase the water use efficiency. The WANA production systems are dominated by cereals, primarily wheat in the wetter and barley in the drier areas, in rotation with mainly food legumes such as chickpea, lentil and forage legumes. The SSA production systems are generally characterized by cereal/legume mixed-cropping dominated by maize, millet, sorghum, and wheat. The major constraints in both regions to crop production are low soil fertility, insecure rainfall, and low-productive genotypes, low adoption of improved soil and crop management practices, and lack of appropriate institutional support. Different cropping systems and accompanying technologies are discussed. Results indicate that there is an advantage to apply these technologies but being function of socio-economic and bio-physical conditions. It is recommended that future research focuses on integrated technology development while taking into account also different levels of scale such as field, village, and watershed.

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