Effects of tillage practices on water consumption characteristics and grain yield of winter wheat under different soil moisture conditions

SummaryEffects of plant density ranging from 44444 to 133333 plants/ha and tillage practices (planting in flat beds (control), in the furrows of open ridges, on the top of open ridges, in the furrows of tie-ridges and on the top of tie-ridges) on growth and grain yield of sorghum were investigated at Kobo, a typical semi-arid area in Ethiopia, during 1980, 1981 and 1982 cropping seasons. Plant growth was limited in the flat beds because they were likely to be deficient in soil moisture and sometimes in the tie-ridging treatments, due to waterlogging. However, planting on the top of tie-ridges produced 1·6, 0·4 and 1·8 t/ha more yield than in the flat beds, the method commonly practised by the Kobo farmers, during 1980, 1981 and 1982 respectively. In all seasons, the effect of plant density did not show marked differences. The plants rather adjusted their reproductive growth and development to the seasonal rainfall and presumably to the available soil moisture at the grain-filling periods. It was concluded that the highest plant density did not reach the optimum for the area. Planting sorghum on the top of tie-ridges is recommended.

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Environmental Conditions Associated with Stripe Rust in Kansas Winter Wheat

Plant Disease ◽

10.1094/pdis-11-15-1321-re ◽

2016 ◽

Vol 100 (11) ◽

pp. 2306-2312 ◽

Cited By ~ 5

Author(s):

B. S. Grabow ◽

D. A. Shah ◽

E. D. DeWolf

Keyword(s):

Soil Moisture ◽

Winter Wheat ◽

Stripe Rust ◽

Yield Loss ◽

Initial Step ◽

Disease Forecasting ◽

Estimation Equations ◽

Forecasting System ◽

Moisture Conditions ◽

General Estimation

Stripe rust has reemerged as a problematic disease in Kansas wheat. However, there are no stripe rust forecasting models specific to Kansas wheat production. Our objective was to identify environmental variables associated with stripe rust epidemics in Kansas winter wheat as an initial step in the longer-term goal of developing predictive models for stripe rust to be used within the state. Mean yield loss due to stripe rust on susceptible varieties was estimated from 1999 to 2012 for each of the nine Kansas crop reporting districts (CRD). A CRD was classified as having experienced a stripe rust epidemic when yield loss due to the disease equaled or exceeded 1%, and a nonepidemic otherwise. Epidemics were further classified as having been moderate or severe if yield loss was 1 to 14% or greater than 14%, respectively. The binary epidemic categorizations were linked to a matrix of 847 variables representing monthly meteorological and soil moisture conditions. Classification trees were used to select variables associated with stripe rust epidemic occurrence and severity (conditional on an epidemic having occurred). Selected variables were evaluated as predictors of stripe rust epidemics within a general estimation equations framework. The occurrence of epidemics within CRD was linked to soil moisture during the fall and winter months. In the spring, severe epidemics were linked to optimal (7 to 12°C) temperatures. Simple environmentally based stripe rust models at the CRD level may be combined with field-level disease observations and an understanding of varietal reaction to stripe rust as part of an operational disease forecasting system in Kansas.

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Performance of Cowpea [ Vigna Unguiculata (L.) WALP.] Recombinant Inbred Lines for Grain Yield and Stability Under Low Soil Moisture Conditions

SSRN Electronic Journal ◽

10.2139/ssrn.3964583 ◽

2021 ◽

Author(s):

Sanatu Mustapha Alidu ◽

A Danquah ◽

Isaac Kojo Asante ◽

P Tongoona ◽

K Ofori ◽

...

Keyword(s):

Soil Moisture ◽

Grain Yield ◽

Vigna Unguiculata ◽

Recombinant Inbred ◽

Recombinant Inbred Lines ◽

Inbred Lines ◽

Moisture Conditions

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Soil nitrate accumulation and leaching in conventional, optimized and organic cropping systems

Plant Soil and Environment ◽

10.17221/768/2017-pse ◽

2018 ◽

Vol 64 (No. 4) ◽

pp. 156-163

Author(s):

Wang Dapeng ◽

Zheng Liang ◽

Gu Songdong ◽

Shi Yuefeng ◽

Liang Long ◽

...

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Water Consumption ◽

Root Zone ◽

Cropping Systems ◽

Cropping System ◽

N Leaching ◽

N Accumulation ◽

Organic System ◽

Grain Yields

Excessive nitrogen (N) and water input, which are threatening the sustainability of conventional agriculture in the North China Plain (NCP), can lead to serious leaching of nitrate-N (NO3–-N). This study evaluates grain yield, N and water consumption, NO3–-N accumulation and leaching in conventional and two optimized winter wheat-summer maize double-cropping systems and an organic alfalfa-winter wheat cropping system. The results showed that compared to the conventional cropping system, the optimized systems could reduce N, water consumption and NO3–-N leaching by 33, 35 and 67–74%, respectively, while producing nearly identical grain yields. In optimized systems, soil NO3–-N accumulation within the root zone was about 80 kg N/ha most of the time. In the organic system, N input, water consumption and NO3–-N leaching was reduced even more (by 71, 43 and 92%, respectively, compared to the conventional system). However, grain yield also declined by 46%. In the organic system, NO3–-N accumulation within the root zone was generally less than 30 kg N/ha. The optimized systems showed a considerable potential to reduce N and water consumption and NO3–-N leaching while maintaining high grain yields, and thus should be considered for sustainable agricultural development in the NCP.

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Subsoiling and Sowing Time Influence Soil Water Content, Nitrogen Translocation and Yield of Dryland Winter Wheat

Agronomy ◽

10.3390/agronomy9010037 ◽

2019 ◽

Vol 9 (1) ◽

pp. 37 ◽

Cited By ~ 2

Author(s):

Yan Liang ◽

Shahbaz Khan ◽

Ai-xia Ren ◽

Wen Lin ◽

Sumera Anwar ◽

...

Keyword(s):

Soil Moisture ◽

Winter Wheat ◽

Grain Yield ◽

Soil Water ◽

Loess Plateau ◽

Water Storage ◽

Soil Water Storage ◽

Yield Reduction ◽

Sowing Time ◽

N Accumulation

Dryland winter wheat in the Loess Plateau is facing a yield reduction due to a shortage of soil moisture and delayed sowing time. The field experiment was conducted at Loess Plateau in Shanxi, China from 2012 to 2015, to study the effect of subsoiling and conventional tillage and different sowing dates on the soil water storage, Nitrogen (N) accumulation, and remobilization and yield of winter wheat. The results showed that subsoiling significantly improved the soil water storage (0–300 cm soil depth) and increased the contribution of N translocation to grain N and grain yield (17–36%). Delaying sowing time had reduced the soil water storage at sowing and winter accumulated growing degree days by about 180 °C. The contribution of N translocation to grain yield was maximum in glume + spike followed by in leaves and minimum by stem + sheath. Moreover, there was a positive relationship between the N accumulation and translocation and the soil moisture in the 20–300 cm range. Subsoiling during the fallow period and the medium sowing date was beneficial for improving the soil water storage and increased the N translocation to grain, thereby increasing the yield of wheat, especially in a dry year.

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Effects of Tillage Practices on Water Consumption, Water Use Efficiency and Grain Yield in Wheat Field

Journal of Integrative Agriculture ◽

10.1016/s2095-3119(13)60733-9 ◽

2014 ◽

Vol 13 (11) ◽

pp. 2378-2388 ◽

Cited By ~ 12

Author(s):

Cheng-yan ZHENG ◽

Zhen-wen YU ◽

Yu SHI ◽

Shi-ming CUI ◽

Dong WANG ◽

...

Keyword(s):

Grain Yield ◽

Water Use Efficiency ◽

Water Use ◽

Water Consumption ◽

Wheat Field ◽

Tillage Practices ◽

Use Efficiency

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Effect of Preplant Irrigation, Nitrogen Fertilizer Application Timing, and Phosphorus and Potassium Fertilization on Winter Wheat Grain Yield and Water Use Efficiency

International Journal of Agronomy ◽

10.1155/2014/312416 ◽

2014 ◽

Vol 2014 ◽

pp. 1-12 ◽

Cited By ~ 4

Author(s):

Jacob T. Bushong ◽

D. Brian Arnall ◽

William R. Raun

Keyword(s):

Soil Moisture ◽

Winter Wheat ◽

Grain Yield ◽

Management Practices ◽

Fertilizer Application ◽

N Fertilizer ◽

Fertilizer Management ◽

Application Timing ◽

K Fertilizer ◽

P Fertilizer

Preplant irrigation can impact fertilizer management in winter wheat. The objective of this study was to evaluate the main and interactive effects of preplant irrigation, N fertilizer application timing, and different N, P, and K fertilizer treatments on grain yield and WUE. Several significant two-way interactions and main effects of all three factors evaluated were observed over four growing seasons for grain yield and WUE. These effects could be described by differences in rainfall and soil moisture content among years. Overall, grain yield and WUE were optimized, if irrigation or adequate soil moisture were available prior to planting. For rain-fed treatments, the timing of N fertilizer application was not as important and could be applied before planting or topdressed without much difference in yield. The application of P fertilizer proved to be beneficial on average years but was not needed in years where above average soil moisture was present. There was no added benefit to applying K fertilizer. In conclusion, N and P fertilizer management practices may need to be altered yearly based on changes in soil moisture from irrigation and/or rainfall.

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