Response of water use efficiency through fertigation on growth and yield of chilli crop ram kumar, ramesh pal, rajiv kumar, suraj sagar, ankur singh bist department of agricultural sciences and engineering, set, iftm university, moradabad244102 u. Wheat yield and economic response to nitrogen rate and timing of application ron wiederholt, ndsu nutrient management specialist. The objective of this study was to evaluate the tolerance of soybean cultivars to waterlogged alluvial soils. Yield and nutritional responses to waterlogging of soybean. The variable response of dryland corn yield to soil water content at planting david c. A part of this effort is the production of landmark. The greatest biological yield was observed at combination of threeforms ofn fig 2. Interrelations of yield, evapotranspiration, and water use.
Yield, water use efficiency, and yield response factor in. Crop yield response to water food and agriculture organization of. The summer flow and water yield response to timber harvest. Nitrogen requirements and yield potential of spring wheat. Yield response of corn to deficit irrigation in a semiarid. Furrow irrigating soybean prior to a large, unexpected rainfall event can reduce nitrogen fixation and crop yield. Two year field experiment was conducted during the early rainy seasons of 2009 and 2010 at the teaching and research farm of the university of calabar, south eastern rainforest agroecology of nigeria, to evaluate the response of popcorn zea mays l. Research cgiar, crop yield response to water is published at a time of high demand for. Yield, water use efficiency, and yield response factor in carrot crop under different irrigation depths. Orthogonal comparisons showed that use of mixture fertilization had more effect on yield than single form of n. Interrelations of yield, evapotranspiration, and water use ef. As the challenges toward increasing water for irrigation become more prevalent, knowledge of crop yield response to water can facilitate the. Corn yield response to nitrogen rate and timing in sandy.
Crop water production functions describe the relationship of crop yield y response to varying levels of water input and can be useful for various water management applications. It is well known that corn is highly sensitive to water stress elhendawy and schmidhalter, 2010. Independence of yield potential and crop nitrogen response. The method is presented in part 1 and takes into account maximum and actual crop yields as influenced by water deficits using yield response functions relating relative yield decrease and relative evapotranspiration deficits. From responsesurface analyses, 63% sorghum and 70% wheat of variations in grain yield were explained by variations in available soil water at emergence and inseason precipitation. This draft publication deals with the relationship between water and crop yields in a simplified and easytouse form. Adequate n slightly increased corn grain yield under stress and greatly increased yield with full irrigation. Response of water coupling with n supply on maize nitrogen uptake, water and n use effi ciency, and yield in drip irrigation condition. Corn grain yield buacre 200 150 100 50 0 080 120180240 figure 1. Winter wheat yield response to climate variability in. Research effect of nitrogen and water deficit type on the. Coupled effects of soil water and nutrients on growth and yields of maize plants in a semiarid region pedosphere 2009 19.
Crops with yield response factors greater than one ky1, like banana 1. Du yadan, cao hongxia, liu shiquan, gu xiaobo, cao yuxin. Weigh wagon was used to measure the weight of the corn. Selectiontractor logging of the sfc increased annual yield by a maximum of 2,053 m3ha1yr1 during the seventh water year after harvest began. Part 2 gives an account of water related crop yield. They also reported an average yield increase of 23% for adequate versus deficit water supply and around 100% for adequate versus deficit n levels in the us great plains region. Pasture yield responses to irrigation in canterbury. Maize evapotranspiration, yield production functions.
The application of the model predicted that the average yield would decrease under projected climate change. Grain yield versus available n relationships for 1996 were typical of responses observed across the three years of this study. Response per irrigation and yield variation between years decreased as the number of irrigations increased. Crop yield and water requirement relationships for major. The fao land and water division is engaged extensively in the enhancement of global agricultural performance. Food and agriculture organization of the united nations, 1979 science 193 pages. Faos crop water productivity and yield response model article pdf available in environmental modelling and software 62 august 2014 with 4,451 reads how we measure reads. University of illinois adapted from better crops, vol.
Ndvi, moisture, and corn yield response to nitrogen rates. Agronomy journal abstract nitrogen management corn yield. When drought stress is not severe, the response of wheat grain yield to n fertilization increased. Predicting spatial patterns of corn yield response to. Response of yield, quality, water and nitrogen use. Crop yield responses in waterstressed environments. A model of crop yield response to irrigation water. The relationship can be used as a production function to quantify the economic ramifications of practices which increase irrigation water salinity, such as disposal of surface and subsurface saline drainage waters into the irrigation water supply system.
Water and nitrogen are two major limiting factors for upland crop growth and development in arid region. Knowledge of a locally developed crop yield response to irrigation water is essential for effective onfarm implementation of limited irrigation practices. Benjamin usdaars, central great plains research station, 40335 county road gg, akron, co 80720 usa. The 100% rate applied all at planting had the same yield as a 60% rate either applied at planting or. Effects of different forms of nitrogen application on. Despite this, limited scientific information has been documented so far on their interaction effects on tef crop productivity in northern ethiopia. The method presented in part a takes into account maximum and actual crop yields as influenced by water deficits using yield response functions. Aquacropthe fao crop model to simulate yield response. Research cgi ar, crop yield response t o water is publishe d at a time of high demand for assistan ce by member countries in order to implem ent effec tive water management strategie s. A relationship between crop yield and irrigation water salinity is developed. Irrigated corn yield response to nitrogen and water1 agronomy. During water restrictions, irrigators often choose to either keep watering their whole farm with a longer irrigation return period, or drop out paddocks and fully irrigate the remainder. Aquacropthe fao crop model to simulate yield response to.
Article in chinese guo by, gao h, tang c, liu t, chu gx. Aman rice to npk fertilizers in ganges tidal floodplain. Data were analyzed using the anova procedure and means separated using lsd at. Part of theagricultural science commons,agriculture commons,agronomy and crop sciences commons, and thesoil science commons. Th e complexity of crop responses to water defi cits led earlier to the use of empirical production functions as the most practical option to assess crop yield as related to water. Increasing the n availability reduced the yield gap in wheat, but the effects of n fertilizer on the yield gaps depends on water stress abeledo et al.
Agricultural water management, 12 1987 3121 311 elsevier science publishers b. Guidelines for the acceptable level of irrigation water. Balanced crop nutrition nitrogen and potassium work. The variable response of dryland corn yield to soil water. Equation 1 is a water production function and can be applied to all.
This was then used to estimate the response of the crop to additional n for a given year. Potassium improves yield response to n fertilizer and n efficiency. Yield response, water productivity, and seasonal water production. Locally developed crop response to water relationships, including crop production functions, yield response factors, and crop growth and yield parameters, can aid growers, crop. This publication presents a methodology to quantify yield response to water through aggregate components which form the handles to assess crop yields under both adequate and limited water supply. It simulates attainable yields of major herbaceous crops as a function of water. In data sorted by tillage system, yield response to water supply was greater with notill than with conventional tillage in both crops 184 vs. As expected, available water increased wheat yield potential and the response to n. Relative yield may be predicted by rearranging the terms in equation 1 to obtain equation 2. Nesmith and ritchie, 1992, and timely irrigation increases yield stone et al. Predicting spatial patterns of corn yield response to fertilizer nitrogen susan eileen white iowa state university follow this and additional works at. Response of yield, quality, water and nitrogen use efficiency of tomato to different levels of water and nitrogen under drip irrigation in northwestern china. Corn grain yield response to crop rotation and nitrogen.
Under high water stress, the response to n was small and yield potential was low, producing a comparatively flat curve figure 1. Branscheid, 1979, food and agriculture organization of the united nations edition, in english. Irrigation water supplies are decreasing in many areas of the us great plains, which is requiring many farmers to consider deficitirrigating corn zea mays l. Wheat yield and economic response to nitrogen rate and. This article introduces the fao crop model aquacrop. Nitrogen rate poundsa ndvi moisture % yield buacre 0 0. Response of yield and yield components of tef eragrostis. Corn response to nitrogen management under fullyirrigated. Iv crop yield response to water the fao land and water division is engaged extensively in the enhancement of global agricultural performance.
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