Water requirement, crop coefficient and water-use efficiency of ‘Robusta’ banana under different soil covers and soil moisture regimes

1985 ◽  
Vol 25 (3) ◽  
pp. 263-269 ◽  
Author(s):  
R.K. Bhattacharyya ◽  
V.N.Madhava Rao
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Crop Coefficient ◽  
Water Requirement ◽  
Soil Covers ◽  
Moisture Regimes ◽  
Use Efficiency

Studies on Transpiration Suppressants on Spring Sorghum in North-Western India in Relation to Soil Moisture Regimes. I. Effect on Yield and Water Use Efficiency

1984 ◽  
Vol 20 (2) ◽  
pp. 151-159
Author(s):  
D. Boobathi Babu ◽  
S. P. Singh
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
Field Experiments ◽  
Western India ◽  
Moisture Regimes ◽  
Use Efficiency ◽  
Effect On Yield ◽  
North Western

SUMMARYThe results of field experiments conducted in the spring seasons (February/March to June) of 1980 and 1981 indicate that grain yields of sorghum increased with increase in frequency of irrigation. Crops sprayed with atrazine or CCC yielded more than the unsprayed control; maximum yields were obtained by the application of atrazine at 200 g ha−1. Water use efficiency decreased with increase in irrigation but increased as a result of spraying crops with either chemical. Irrigation water can be saved by the spraying of atrazine or CCC onto spring-sown sorghum.

Studies on Transpiration Suppressants on Spring Sorghum in North-Western India in Relation to Soil Moisture Regimes. I. Effect on Yield and Water Use Efficiency

1984 ◽  
Vol 20 (2) ◽  
pp. 151-159 ◽  
Author(s):  
D. Boobathi Babu ◽  
S. P. Singh
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
Field Experiments ◽  
Western India ◽  
Moisture Regimes ◽  
Use Efficiency ◽  
Effect On Yield ◽  
North Western

SUMMARYThe results of field experiments conducted in the spring seasons (February/March to June) of 1980 and 1981 indicate that grain yields of sorghum increased with increase in frequency of irrigation. Crops sprayed with atrazine or CCC yielded more than the unsprayed control; maximum yields were obtained by the application of atrazine at 200 g ha−1. Water use efficiency decreased with increase in irrigation but increased as a result of spraying crops with either chemical. Irrigation water can be saved by the spraying of atrazine or CCC onto spring-sown sorghum.

Effects of Soil Moisture and Organic Mulches on Corn Planted in Different Patterns

1978 ◽  
Vol 14 (4) ◽  
pp. 389-394 ◽  
Author(s):  
K. Anand Reddy ◽  
B. Bhasker Reddy ◽  
K. Balaswamy ◽  
A. Venkatachari
Keyword(s):  
Soil Moisture ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Paddy Straw ◽  
Moisture Regimes ◽  
Use Efficiency ◽  
Limited Moisture ◽  
Moisture Conditions ◽  
Irrigation Requirements

SUMMARYIn a two-year study the yields and water use of corn were studied under four planting patterns, with different soil moisture regimes and organic (paddy straw) mulches. Normal planting and irrigation resulted in higher yields and lowest water use efficiency, while double file planting in deep furrows (rafter method) gave greatest efficiency of water use but with a slight decrease in grain yield. Mulches improved water use efficiency by 50–60% and reduced irrigation requirements by four to six irrigations. Under limited moisture conditions a combination of these practices is likely to reduce irrigation requirements by half and to double water use efficiency.

EFFETS DE LA FUMURE POTASSIQUE ET DES RÉGIMES HYDRIQUES SUR LA RÉPONSE AU POTASSIUM DE LA LUZERNE ET DE LA FLÉOLE DES PRÉS

1987 ◽  
Vol 67 (4) ◽  
pp. 811-823
Author(s):  
J. L. DIONNE ◽  
A. R. PESANT ◽  
G. M. BARNETT
Keyword(s):  
Soil Moisture ◽  
Water Use Efficiency ◽  
Water Use ◽  
Sandy Loam ◽  
Potassium Uptake ◽  
Moisture Regime ◽  
Exchangeable Potassium ◽  
Moisture Regimes ◽  
Use Efficiency ◽  
Dry Soil

The objectives of this study were to determine the changes in yield response and water use efficiency of alfalfa (Medicago sativa L. 'Saranac') and timothy (Phleum pratense L. 'Climax') to potassium applications and variations in soil moisture regimes. For each of the two test crops the factorial combination of the following treatments were replicated three times: three soils (Ste Rosalie clay, Greensboro loam, and Danby sandy loam), potassium (0, 25, 50 and 100 mg K kg−1 of dry soil) and three moisture levels: (1) optimal, 70–100% of available water (AW); (2) semi-dry, 0–100% AW; and (3) dry, 0–50% AW. Yield increases of 68% for alfalfa and 40% for timothy were produced by potassium applied to soil under the optimal moisture regime with almost no yield increase under dry soil moisture conditions. Water use efficiency was higher for alfalfa than for timothy, and increased with rates of potassium on Greensboro loam and Danby sandy loam but not on Ste Rosalie clay. Potassium content of alfalfa was lower when grown at optimal soil moisture than in the dry regime. Differences in potassium content between moisture regimes were small for timothy. Due to higher yields, potassium uptake by alfalfa was greater when soils were cropped at optimal moisture. However, less exchangeable potassium was found after the experiment in soils cropped to alfalfa in the optimal moisture regime than in soils under the dry moisture regime. Therefore potassium fertilizer was most effective at the optimal moisture level (near field capacity). Key words: Potassium fertilization, exchangeable potassium, soil moisture regime, potassium uptake, alfalfa, timothy

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