Effect of Water Stress on the Development of Soybean Crop

2019 ◽  
pp. 1-8
Author(s):  
Pedro Silvério Xavier Pereira ◽  
Rodrigo Fernandes Daros ◽  
Ana Lucia da Silva ◽  
Arnaldo Gonçalves de Campos ◽  
Aloisio Bianchini ◽  
...  
Keyword(s):  
Meteorological Data ◽  
Maximum Yield ◽  
Yield Response ◽  
Response Factor ◽  
Development Stages ◽  
Soybean Crop ◽  
Crop Cycle ◽  
Actual Yield ◽  
Yield Response Factor ◽  
Meteorological Elements

The present work had the objective of evaluating the effects of the spatial variability of the main meteorological elements on soybean yield, variety M7739 IPRO from Monsoy, with an early cycle of 105 days, with sowing at the beginning of October and harvesting at the beginning of the month in February, in two agricultural years (2013/14 and 2014/15) at Santa Luzia farm, located in the municipality of Campo Verde - MT (15º42'28 ''S, 55º19'59'' W, 736 m). The meteorological data of the region were obtained through the 9th district of meteorology (9th DISME) of the National Institute of Meteorology - INMET. The coefficient of culture (kc) was defined following the development stages of the culture. The estimates of evapotranspiration (potential and crop) were determined by the water balance method and the sensitivity coefficients (ky) of the soybean crop were estimated by the expression Ky=(1-Yr/Ym)/(1-ETr/ETm), in which ky = yield response factor; Yr = actual yield of the crop; Ym = maximum yield of the crop; ETr = actual evapotranspiration e ETm = maximum evapotranspiration. The values of Ky were all lower than 1, both for the crop cycle in the 2013/14 crop year and for the crop cycle 2014/15, indicating that the soybean crop is adaptable to water deficit.

scholarly journals Yield Response Factor to Water (Ky) of FMX 993, FMT 701 and FMX 910 Cotton Varieties in Campo Verde, MT

2019 ◽  
pp. 1-8
Author(s):  
Patrícia Monique Crivelari Costa ◽  
Aloisio Bianchini ◽  
José Holanda Campelo Júnior ◽  
Sharmely Hilares Vargas ◽  
Marcelo Ferri ◽  
...  
Keyword(s):  
Water Deficit ◽  
Meteorological Data ◽  
Maximum Yield ◽  
Temporal Distribution ◽  
Yield Response ◽  
Response Factor ◽  
Yield Data ◽  
Mato Grosso ◽  
Daily Water ◽  
Yield Response Factor

Production of herbaceous cotton in rainfed is subject to water-deficit risks due to climatic variations, such as precipitation with non-homogeneous spatial-temporal distribution. In this sense, the objective of this study was to evaluate the yield response factor to water of FMX 993, FMT 701 and FMX 910 cotton varieties, in Campo Verde County, Mato Grosso State, Brazil. Real yield data of the 2009/10 and 2010/11 seasons of the three varieties were obtained. Meteorological data were used to estimate the maximum yield and to calculate the daily water balance for each variety and seasons. From these values the yield response factor to water (Ky) was obtained. Ky values ranged from 0 to 0.9, with the lowest and highest values for FMX 910 for the 2009/10 and 2010/11 seasons, respectively. These values obtained from Ky indicate that all varieties studied present increasing tolerance to water-deficit. The FMX 993 variety had a lower variation in Ky values between 0.3 and 0.5 for the 2009/10 and 2010/11 seasons, in that order. Therefore, among the cotton varieties evaluated in this study, recommend FMX 993 for the conditions of Campo Verde County, Mato Grosso State, due to its greater tolerance to the water-deficit.

scholarly journals Yield, water use efficiency, and yield response factor in carrot crop under different irrigation depths

2016 ◽  
Vol 46 (7) ◽  
pp. 1145-1150 ◽  
Author(s):  
Daniel Fonseca de Carvalho ◽  
Dionizio Honório de Oliveira Neto ◽  
Luiz Fernando Felix ◽  
José Guilherme Marinho Guerra ◽  
Conan Ayade Salvador
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Block Design ◽  
Time Domain Reflectometry ◽  
Yield Response ◽  
Response Factor ◽  
Use Efficiency ◽  
The Mean ◽  
Yield Response Factor

ABSTRACT: The aim of the present study was to evaluate the effect of different irrigation depths on the yield, water use efficiency (WUE), and yield response factor (Ky) of carrot (cv. 'Brasília') in the edaphoclimatic conditions of Baixada Fluminense, RJ, Brazil. Field trials were conducted in a Red-Yellow Argisol in the 2010-2011period. A randomized block design was used, with 5 treatments (depths) and 4 replicates. Depths were applied by drippers with different flow rates, and the irrigation was managed by time domain reflectometry (TDR) technique. The reference (ETo) and crop (ETc) evapotranspiration depths reached 286.3 and 264.1mm in 2010, and 336.0 and 329.9mm in 2011, respectively. The root yield varied from 30.4 to 68.9t ha-1 as a response to treatments without irrigation and 100% replacement of the soil water depth, respectively. Values for WUE in the carrot crop varied from 15 to 31kg m-3 and the mean Ky value was 0.82. The mean values for Kc were obtained in the initial (0.76), intermediate (1.02), and final (0.96) stages. Carrot crop was influenced by different water depths (treatments) applied, and the highest value for WUE was obtained for 63.4% of soil water replacement.

scholarly journals Seasonal Yield Response Factor for Red Bombay Onion (Allium cepa L.) Variety in Arba Minch, Ethiopia

2022 ◽  
Author(s):  
Ligalem Agegn Asres
Keyword(s):  
Deficit Irrigation ◽  
Irrigation System ◽  
Water Shortage ◽  
Furrow Irrigation ◽  
Yield Response ◽  
Response Factor ◽  
Irrigation Systems ◽  
Response Factors ◽  
Yield Response Factor ◽  
Alternate Furrow Irrigation

Background: For better water resources management in the areas of water shortage for crop production, deficit irrigation is very important. The understanding of the yield response factor to water deficit is crucial for efficient irrigation water management. Deficit irrigation for studying yield response factors is always practiced in the way of stressing the demand of the crops. The present study was done for the determination of the seasonal yield response factor of red Bombay onion variety under Arba Minch agro climate condition. Furthermore, it also examined the effect of furrow irrigation systems on the seasonal yield response factor. Methods: The experiment was conducted from August to November 2019. The experiment had six treatments, which were the combination of two furrow irrigation systems and three irrigation levels. Data were collected for soil moisture before and after each irrigation and bulb yield. The seasonal yield response factors were determined through simple linear regressions using SPSS software. Result: When considering the furrow irrigation system as a factor, the seasonal yield response factor for alternate furrow irrigation system was 1.18 while for paired row furrow irrigation system was 1.07. This red Bombay variety of onion clearly shows more sensitive to water stress for alternative furrow irrigation systems than paired row furrow irrigation systems. Therefore, in the area of water shortage paired row furrow irrigation system is better than alternate furrow irrigation system. The seasonal yield response factor as a wall for red Bombay onion variety in Arba Minch agro-ecological condition was 1.12. Therefore, the red Bombay onion variety in Arba Minch agroclimate condition was sensitive to water stress.

Effect of date of application and form of nitrogen on herbage production in spring

1989 ◽  
Vol 112 (3) ◽  
pp. 329-337 ◽  
Author(s):  
R. J. Stevens ◽  
H. I. Gracey ◽  
D. J. Kilpatrick ◽  
M. S. Camlin ◽  
D. G. O'Neill ◽  
...  
Keyword(s):  
Air Temperature ◽  
Meteorological Data ◽  
Maximum Yield ◽  
Residual Effect ◽  
Growth Period ◽  
Yield Response ◽  
Short Term ◽  
Optimum Yield ◽  
Average Maximum ◽  
Application Date

SummaryField plot experiments were carried out for 3 years at four sites to study the effect of date of application of ammonium nitrate/calcium carbonate (CAN) and urea (U) on perennial ryegrass production in spring. Fertilizer (70 kg N/ha) was applied at weekly intervals for 10 weeks from 1 February. Herbage was cut on the same day at all sites, 3–4 weeks after the last N application. CAN and U at 50 kg N/ha were immediately re-applied and a second cut of herbage was taken after 4–5 weeks. From meteorological data, the dates after 1 February when soil temperature at 100 mm depth increased to 5·5 °C and the dates when cumulative average daily air temperatures < 0 °C from 1 January reached 200 °C were calculated for each site and year.The date of application for maximum dry matter (D.M.) yield at the first cut differed with site and year, but for 11 of the 12 site/years was in February. The number of dates of application resulting in optimum yield (i.e. at least 90% of the average maximum yield response to CAN or U) varied also with site and year from one to six. Soil and air temperature predictive systems implied a precision in choice of application date that was unjustified and were no more successful at predicting the optimum application date than a simple date range. The first fertilizer application had a pronounced positive residual effect on D.M. yields at the second cut. Less precision on date of the first application was required to obtain optimum cumulative yields over both cuts than optimum yield at the first cut only.Differences in performance between CAN and U were only significant for three of the 120 fertilizer applications at the first cut. On these occasions, all in one year at two sites, U gave higher yields than CAN. Correlations were sought between D.M. yield response and growth period, air temperature, long-term rainfall and short-term rainfall for CAN and U separately. Factors relating to rainfall had no significant effect on response to U but response to CAN showed a significant negative correlation with short-term rainfall. The short-term weather forecast may therefore be another criterion to be considered in deciding when to apply N in early spring.

scholarly journals Yield Response Factor for Onion (Allium Cepa L) Crop Under Deficit Irrigation in Semiarid Tropics of Maharashtra

2015 ◽  
Vol 3 (2) ◽  
pp. 128-136
Author(s):  
R. G Bhagyawant ◽  
S. D Gorantiwar ◽  
S. D Dahiwalkar
Keyword(s):  
Soil Moisture ◽  
Water Consumption ◽  
Deficit Irrigation ◽  
Relative Yield ◽  
Yield Response ◽  
Response Factor ◽  
Crop Water ◽  
Crop Water Use ◽  
Allium Cepa L ◽  
Yield Response Factor

The present study deals with the study of yield response factor (Ky) for onion crop cultivated under deficit irrigation for Rahuri region (Maharashra). The field experiment was conducted to determine the yield response factor of the onion (Allium cepa L.) cv. N-2-4-1 crop under the deficit irrigation approach during summer season of 2012 and 2013 at Instructional Farm of the Department of Irrigation and Drainage Engineering, Dr. Annasaheb Shinde College of Agricultural Engineering, Mahatma Phule Krishi Vidyapeeth Rahuri. Experiment was carried out in Randomized Block Design (RBD) with 27 treatments and two replications based on different combinations of the quantity of water stress during different crop growth stages. Water applied per irrigation and soil moisture contents before and after irrigation were monitored throughout the season, while onion bulbs were harvested at the end of season and weighed. Average daily crop water use (crop consumptive use) were estimated from the soil moisture content using the soil moisture depletion method. The seasonal yield response factor (Ky) was obtained by relating relative yield decreases to relative crop water use deficit by the regression analysis. The relative yield decreases of the onion crop were proportionally greater with increase in evapotranspiration deficit. It shows the response of yield with respect to the decrease in water consumption. In other words, it explains the decrease in yield caused by the per unit decrease in water consumption. Seasonal crop response factor for onion crop was determined as 1.58, 1.48 and 1.54 during 2012, 2013 and average of both year (2012 &2013) respectively. The yield response factors developed in this study could be used in irrigation design and scheduling for onion in the study area.

Sign in / Sign up

Export Citation Format

Share Document