Effect of Foliar Application of Nitrogen Based Formulations on Quality and Yield of Fodder Sorghum During Summer Season Under Semi - Arid Condiotion. [ With CD Copy ] PDF Download
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Author: Anil
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Languages : en
Pages : 0
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![Effect of Foliar Application of Nitrogen Based Formulations on Quality and Yield of Fodder Sorghum During Summer Season Under Semi - Arid Condiotion. [ With CD Copy ] PDF](https://books.google.com/books/content/images/frontcover/MVcz0AEACAAJ?fife=w80-h100)
Author: Anil
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Languages : en
Pages : 0
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![Effect of Phosphorus and Zinc Fertilization on Growth, Yield and Quality of Fodder Sorgihum (Sorghum Bicolor L.) [With CD Copy] PDF](https://books.google.com/books/content/images/frontcover/4SsFyAEACAAJ?fife=w80-h100)
Author: N Bhanuprakash
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Languages : en
Pages : 45
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Author: Inamdar Y V.
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Category :
Languages : en
Pages : 17
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Author: Surendra Nath Pasupalak
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Category :
Languages : en
Pages : 111
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Author: Muhammad Afzal
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659134579
Category :
Languages : en
Pages : 136
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Being an agriculture country Pakistan is facing shortage of green forage due to harsh summer and winter frost.Sorghum fodder is the basic feed for live stock and especially valuable for feeding in the plain regions. Cured sorghum fodder, with a little protein supplement, maintains cattle in good condition throughout the winter with little or no gain supplement. Its green fodder contains 70% carbohydrates, minerals, crude fat and nitrogen free extract. Multicut sorghum is a better replacement because it can withstand in harsh environment and has xerophytic characteristics.this study was proposed to evaluate different levels of nitrogen and sowing methods for sorghum forage. In this experiment different levels of nitrogen fertilizer i.e. 0, 57.5, 28.75,45 kg N/ha and sowing methods 1. broad coast 2. Line sowing (30 cm b/w rows)were used. It was concluded that nitrogen application N2 (57.5 kg/ha) and line sowing (30 cm b/w rows) with three cutting system showed better results among all observations, thus maximum production for multicut sorghum forage was obtained under agro climatic conditions of Faislabad, Pakistan.
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Languages : en
Pages :
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Grain Sorghum (Sorghum bicolor) is one of the most drought and stress tolerant crops grown in Kansas. For this reason, much of the sorghum is grown in high risk environments where other crops are more likely to fail or be unprofitable. Efficient sorghum cropping systems should not only produce high yields and use inputs such as nitrogen efficiently, but they should also remove as much risk as possible for a successful crop, and give farmers more flexibility in making input decisions. The price of nitrogen (N) fertilizer has increased substantially in recent years. Current retail prices for commonly used N fertilizers range from $0.88 to $1.50 per kilogram of N in Kansas. Thus, a farmer could easily invest $50-$100 per hectare in N, depending on the rate of N needed and the source used. Practices which allow farmers to assess crop potential as late as possible after planting before applying costly inputs like fertilizer, can increase the potential for a profitable return on those inputs in risky environments. Currently, most sorghum growers routinely apply all the N fertilizer prior to planting, sometimes as much as 6 months prior. The current Kansas State University (KSU) nitrogen recommendation is yield goal based and performs well when the grower is able to predict yield six months or more in advance of harvest. However, yield is quite variable and difficult to predict. Because long range weather and yield predictions are not very reliable, could deferring making N application decisions until later in the season when yield can be more accurately predicted reduce risk? Can the use of active sensors provide a better estimate of yield potential and nitrogen needs sometime after planting? If they can, how late can the decision be made and how best should the fertilizer N be applied? Several studies were conducted throughout Kansas to look at the effect of N rate, N application timing (pre-plant, side dress, or combinations of the two) and method of application on sorghum yield and N use efficiency. The studies were also designed to examine the potential of using optical sensors to predict optimum N rate for post-planting applications as a means of avoiding the use of soil tests to estimate soil N contributions. The objectives of this research were: a. to validate the KSU N fertilizer recommendations for grain sorghum grown in rotation with crops such as soybeans and wheat, b. to determine the effect of both preplant and midseason N applications on the growth and yield potential of grain sorghum, and to determine the optimal timing and method for midseason N applications on grain sorghum, and, c. to assess the potential of optical sensing of the growing crop to refine N recommendations using in-season applications during the growing season. This thesis will summarize the results from the various experiments we completed to achieve these objectives. The KSU N fertilizer recommendations for grain sorghum may need some revisions. This research suggests that including coefficients relating to N use efficiency may be necessary to get more accurate N recommendations. Both pre-plant and midseason N applications increased the yield of grain sorghum whenever a response to N was observed. There was no negative effect of applying all the nitrogen midseason at 30-40 days after planting when compared to pre-plant applications. Injecting nitrogen fertilizer below the soil surface had higher yields than other methods of midseason N applications such as surface banding or surface broadcasting, especially when a significant rainfall event did not occur within a few days of application. The optical sensors used in this study were very effective at making N recommendations 30-40 days after planting. These sensors will provide for more accurate N recommendations compared to the current soil test and yield goal method.
Author: Szilvia Katalin Zilahi-Sebess
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Languages : en
Pages :
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Forage sorghum (Sorghum bicolor L. Moench) is one of the prospective crops that may be used to produce biofuels in the future. Therefore, it is of interest to find management practices that improve both the production of biomass yield and quality. This study presents observations of the effects different rates of nitrogen fertilization have on yield, tissue nitrogen content, and tissue quality measures such as ash, lignin, sucrose, xylans, cellulose and starch content, based on three years of field trials from the Brazos Bottom and one year of field trials from near China, Texas. Data for the quality components were obtained using near infrared spectroscopy, with the exception of tissue nitrogen which was determined by using the dry combustion method. This study has showed fertilizer nitrogen had a strong positive correlation with the tissue nitrogen of sorghum biomass. Changes in tissue quality in relationship with fertilizer nitrogen levels and tissue nitrogen concentration were also observed. Ash showed a strong positive and sucrose showed a strong negative correlation to both iv tissue nitrogen concentration and fertilizer nitrogen application. Similarly to sucrose, starch also decreased with higher nitrogen levels and lignin was found to increase slightly. The concentration of cellulose and xylans were very weakly affected by nitrogen application and nitrogen concentration.
Author:
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ISBN:
Category : Agriculture
Languages : en
Pages : 2134
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Author: Jarrett Daniel Riffel
Publisher:
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Category :
Languages : en
Pages :
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Variable-rate (VR) nitrogen (N) applications have the potential to improve efficiency of grain sorghum production. Field experiments were conducted in 2010 and 2011 in Stockton and Manhattan, KS. Four VR-N prescriptions were generated using various combinations of grid soil sampling data, soil electrical conductivity (EC) data, and yield maps, and were compared in the field with a uniform application based on a composite soil sample and whole field average yield goal. Soil EC data were used to create management zones that were individually soil sampled. Prescriptions were applied before planting and grain sorghum was harvested and recorded with a yield monitor in the fall. Grain sorghum yields responded to N at both sites with a higher response in 2010 due to more precipitation during the growing season. At Stockton in both years, greatest yields and returns were realized with prescription 4, a combination of management zone soil data and spatially-variable yield goal, while the smallest yields were realized with prescription 2 based on management zone soil data and field average yield goal. Prescription 5, which used grid-soil sampling and a spatially-variable yield goal, and prescription 2 resulted in the lowest returns in both years. At Manhattan in both years, greatest yields and returns were realized with prescription 3, combining a composite soil sample with spatially-variable yield goal. Prescription 5 was among the lowest returning treatments in both years. At Stockton, there was no correlation between yield and soil EC during the 2010 growing season, however there was a significant correlation between yield and shallow EC during the drier 2011 season. At Manhattan, yield was correlated to deep EC in 2010 and to shallow EC in 2011. Overall, increasing spatial intensity of data to develop the prescriptions did not necessarily result in an increased yield response to the application. Prescriptions that included a variable yield goal component tended to perform better across both sites and years.
Author: R. S. Ayers
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 196
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Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
