EFFECT OF FREQUENCY OF IRRIGATION ON SOIL MOISTURE AND TURF QUALITY

1967 ◽  
Vol 47 (1) ◽  
pp. 89-97 ◽  
Author(s):  
R. H. Turley
Keyword(s):  
Soil Moisture ◽  
Irrigation Treatment ◽  
The Other ◽  
Moisture Budget ◽  
Visual Rating ◽  
Turf Quality ◽  
Yield And Quality ◽  
Soil Moisture Budget ◽  
Irrigation Requirements

The effect of frequency of irrigation on soil moisture, yield and quality of turf was studied at Saanichton, British Columbia during the summers of 1962 and 1963. Plots were watered when a soil moisture budget, based on black Bellani plate atmometers, showed a deficit of 1.3, 1.9, 2.5 and 3.2 cm. All treatments received the same amount of water over the season. The 1.3-cm irrigation treatment ranked first in visual rating, produced the heaviest yields per clip and maintained higher and more uniform soil moisture than the other treatments.The black Bellani plate atmometer proved to be an efficient instrument in predicting irrigation requirements of lawn turfs.

scholarly journals INFLUENCE OF A SOIL-INCORPORATED HYDROGEL ON IRRIGATION REQUIREMENTS AND QUALITY OF TRANSPLANTED SOD

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1109f-1109
Author(s):  
Anthony Koski
Keyword(s):  
Poa Pratensis ◽  
Irrigation Treatment ◽  
Kentucky Bluegrass ◽  
Turf Quality ◽  
Irrigation Treatments ◽  
Irrigation Requirements

The purpose of this study was to evaluate the effectiveness of soil-incorporated hydrogel to reduce irrigation requirements of transplanted Kentucky bluegrass (Poa pratensis) sod. The treatments included an untilled control, tilled soil, and tilled soil with incorporated hydrogel. Initial irrigation treatment were made daily, at various percentages of potential evapotraspiration (PET), to determine irrigation requirements of newly transplanted sod. Other irrigation treatments were later imposed on transplanted sod which had been established at 100% of PET, to determine irrigation requirements of established sod. Turf quality was measured weekly, and sod transplant rooting strength was also measured.

YIELD AND QUALITY OF GREENHOUSE-GROWN BETZES BARLEY AS AFFECTED BY WATER AND FERTILIZERS

1965 ◽  
Vol 45 (5) ◽  
pp. 437-442 ◽  
Author(s):  
S. Dubetz ◽  
S. A. Wells
Keyword(s):  
Soil Moisture ◽  
Protein Content ◽  
Matric Suction ◽  
The Other ◽  
Yield And Quality ◽  
Two Factors ◽  
Additional Level ◽  
Yield Responses ◽  
Nitrogen Phosphorus

The yield of Betzes barley grown in a greenhouse on a Cavendish loamy sand increased as levels of nitrogen, phosphorus, and soil moisture increased. Fifty pounds of nitrogen per acre increased yield at all levels of phosphorus and water, but heavier applications of nitrogen were effective only with high levels of the other two factors. Yield responses were due primarily to increased tillering. Protein content of the grain increased when the plants were subjected to a matric suction of 0.45 bar. Protein content also increased with each succeeding level of nitrogen up to 150 lb per acre. Fifty pounds of phosphorus reduced protein content but heavier applications had no further effect. The ratio of water used to grain produced was reduced with each additional level of each factor. In this experiment 50 lb of nitrogen and 150 lb of phosphorus provided optimum yield and acceptable protein content.

Weed Infestation, Soil Moisture, Temperature under Mulching Cultivation with Different Films and the Effects on Yield and Quality of Potato

2017 ◽  
Vol 43 (4) ◽  
pp. 571
Author(s):  
Shu-Min ZHANG ◽  
Tang-Yuan NING ◽  
Zhen LIU ◽  
Bin WANG ◽  
Tao SUN ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Yield And Quality ◽  
Weed Infestation

A MOISTURE STRESS INDEX FOR WHEAT BY MEANS OF A MODULATED SOIL MOISTURE BUDGET

1968 ◽  
Vol 48 (5) ◽  
pp. 535-544 ◽  
Author(s):  
A. R. Mack ◽  
W. S. Ferguson
Keyword(s):  
Soil Moisture ◽  
Stress Function ◽  
Potential Evapotranspiration ◽  
Moisture Stress ◽  
Moisture Distribution ◽  
Stress Index ◽  
Wheat Crop ◽  
Moisture Budget ◽  
Dough Stage ◽  
Soil Moisture Budget

Actual evapotranspiration (AE), soil moisture distribution, and moisture stress for a wheat crop (PE-AE) were estimated by the modulated soil moisture budget of Holmes and Robertson. The estimated soil moisture was reasonably well correlated with soil moisture measured weekly by means of gypsum blocks. Wheat yields from experimental plots in the corresponding area were related more closely to the moisture stress function (PE-AE: r = − 0.83), than to the seasonal precipitation (r = 0.62), the potential evapotranspiration (PE) or the evapotranspiration ratio (AE/PE). Regression analyses showed that the grain yields were reduced by an average of 156 (±sb = 40) kg/ha per cm of moisture stress from emergence to harvest, or by 311 and 69 kg/ha per cm of stress, from the fifth-leaf to the soft-dough stage and from the soft-dough stage to maturity, respectively. The moisture stress function may be used to characterize the soil–plant–atmosphere environment for the growing season of a crop. Precipitation and evapotranspiration data are presented annually for three standardized growing periods at Brandon from 1921 to 1963.

Estimation of snowmelt runoff in the Peace River region using a soil moisture budget

1993 ◽  
Vol 73 (4) ◽  
pp. 489-501 ◽  
Author(s):  
H. N. Hayhoe ◽  
R. G. Pelletier ◽  
L. J. P. van Vliet
Keyword(s):  
Soil Moisture ◽  
Snow Depth ◽  
Frozen Soil ◽  
Moisture Budget ◽  
Snowmelt Runoff ◽  
Peace River ◽  
Erosion Prediction ◽  
Spring Runoff ◽  
River Region ◽  
Soil Moisture Budget

Rainfall and snowmelt runoff on soil frozen below the surface are recognized as important factors contributing to soil loss in Canada. The risk of rain on frozen soil has been quantified, and the amount of snowmelt on frozen soil has been estimated. This study extends such research to derive a climate-based model to estimate winter and spring runoff. This could result in a more accurate erosion prediction for areas where snowmelt is a major source for runoff. Selected components of the Water Erosion Prediction Project (WEPP) model and the versatile soil moisture budget (VB) were tested on observed data for two study sites in the Peace River region. The version of the WEPP model available to us estimated snow depth, soil frost depth and frequency of freeze–thaw cycles. However, the results did not adequately match observed data. The VB was modified in this study to improve the estimate of potential winter and spring runoff, and it was shown that incorporating observations of snow depth improved the estimate of the time and amount of snowmelt runoff. The modified runoff model was validated with data collected in the Peace River area of northern Alberta and British Columbia and with published data from the Prairies. Key words: Snowmelt, runoff, soil moisture budget

PRODUCTION PRACTICES FOR EARLY MATURING SOYBEANS IN SOUTHERN ALBERTA

1983 ◽  
Vol 63 (3) ◽  
pp. 641-647 ◽  
Author(s):  
S. DUBETZ ◽  
D. J. MAJOR ◽  
R. J. RENNIE
Keyword(s):  
Glycine Max ◽  
Field Capacity ◽  
Rhizobium Japonicum ◽  
Yield And Quality ◽  
Southern Alberta ◽  
Early Maturing ◽  
Glycine Max L ◽  
Production Practices ◽  
Irrigation Requirements

Four experiments were conducted at two locations in southern Alberta, where no indigenous Rhizobium japonicum existed, to determine the effects of seeding dates, fertilizers, irrigation, and method of inoculant placement on the yield and quality of several early-maturing soybean (Glycine max (L.) Merrill) cultivars. Highest yields were obtained when soybeans were seeded during the first half of May. Irrigation requirements varied between years but yields were similar whether soil moisture was depleted to the 6 × 104-Pa or the 3 × 104-Pa level before irrigating to field capacity. Soybean yields increased substantially from N fertilizer when the inoculant was applied to the seed without a sticker. When granular inoculant was banded with the seed there was no response to N, and the yields of inoculated plants were higher than those of plants that were uninoculated and received up to 160 kg N/ha. When properly inoculated, early-maturing cultivars such as King Grain strain X005 and Maple Presto were capable of maturing and producing seed of acceptable yield and quality in southern Alberta.Key words: Cultivars, fertilizer, irrigation, inoculant, Glycine max (L.) Merrill

ESTIMATED SOIL WATER RESERVES APPLICABLE TO A WHEAT-FALLOW ROTATION FOR GENERALIZED SOIL AREAS MAPPED IN SOUTHERN SASKATCHEWAN

1984 ◽  
Vol 64 (4) ◽  
pp. 667-680 ◽  
Author(s):  
R. DE JONG ◽  
J. A. SHIELDS ◽  
W. K. SLY
Keyword(s):  
Soil Moisture ◽  
Soil Water ◽  
Water Holding Capacity ◽  
Climatic Data ◽  
Moisture Budget ◽  
Model Soil ◽  
Available Water ◽  
Soil Zone ◽  
Water Holding ◽  
Soil Moisture Budget

Long-term mean soil water reserves for a spring wheat-fallow rotation in the southern half of Saskatchewan were calculated using the Versatile Soil Moisture Budget. Four different available water-holding capacity classes and climatic data from 53 stations were used as input to the model. Soil water reserve data for the following times, seeding on 1 May in the crop year, at heading on 30 June, and on 1 May in the fallow year, were mapped. These were then combined with an available water-holding capacity map to portray in a single map the combined droughtiness due to climatic and soil attributes. Estimated soil water reserves compared well with measured data from one location in the Brown soil zone. The temporal and spatial changes in water reserves are discussed and related to summerfallowing. The maps provide information for use in making potential grain yield estimates. Key words: Soil water, wheat-fallow rotation, generalized soil areas, Saskatchewan, Versatile soil moisture budget

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