Sorghum Grain Yield Under Different Rates of Mineral and Organic Fertilizer Application in the South-Sudan Zone of Burkina Faso

Author(s):  
Idriss Serme ◽  
Korodjouma Ouattara ◽  
Dieudonné Ouattara ◽  
Souleymane Ouedraogo ◽  
Sansan Youl ◽  
...  
2000 ◽  
Vol 36 (2) ◽  
pp. 205-221 ◽  
Author(s):  
T. J. REGO ◽  
V. NAGESWARA RAO

In southern and central India, farmers crop Vertisols only in the post-rainy season, to avoid land management problems in the rainy season. In 1983 ICRISAT established a long-term trial seeking to intensify cropping. The trial included intercrops, sequential crops and appropriate Vertisol management technology to allow consecutive rainy-season and post-rainy season crops to be grown. Benefits provided by legumes to succeeding rainy-season sorghum (Sorghum bicolor) were analysed in relation to a non-legume system of sorghum + safflower (Carthamus tinctorius). Rainy-season sorghum grain yield production was sustained at about 2.7 t ha−1 over 12 years within a continuous sorghum–pigeonpea (Cajanus cajan) intercrop system. With a cowpea–pigeonpea intercrop system, succeeding sorghum benefitted each year by about 40 kg N ha−1 (fertilizer nitrogen (N) equivalent). Without N fertilizer application the sorghum grain yield was around 3.3 t ha−1. Legume benefits were less marked in the chickpea (Cicer arietinum)-based rotation than in the pigeonpea system, in which a 12-year build up of soil total N (about 125 μg g−1) was observed. Although sorghum benefitted from this system, pigeonpea yields declined over time due to soil-borne fungi and nematodes. Wider rotations of crops with pigeonpea may help to overcome these problems, while sustaining sorghum production.


2019 ◽  
Author(s):  
Kenzemed Kassie ◽  
Beza Shewangizaw ◽  
Getachew Lema ◽  
Lisanu Getaneh ◽  
Genet Taye ◽  
...  

Abstract The present study was conducted to investigate the response of major cereal crops to application of potassium with balanced fertilizers as well as to validate newly released soil fertility map of Amhara Region. A field experiment was carried out with different districts of North Shewa of Amhara region: Kewet (Sorghum), Basona warana (Food Barley) Moretena jiru and Mojana wedera (Bread wheat. A randomized complete block design was used, with three replications. The treatments were consisted of NPS, NPS+K, NPSBZn, and NPSBZn+K. The required amount of nitrogen and phosphorus were adjusted to crop and site specific recommendation. The rate of K was 150 kg ha-1 K2O and applied as a straight fertilizer at planting in the form of potassium chloride (KCl).The highest grain yield of sorghum (4301.9 kg ha-1) was recorded under the treatment of NPSBZn and followed by NPS fertilizer application respectively, while lower grain yields (3017.7 and 3186.9 kg ha-1) were recorded under the treatments of NPSBZn and NPS with potassium fertilizer application. Even though statically insignificance both NPS and NPSBZn, application of NPSBZn had gave 5.3% of sorghum grain yield advantage as compared to sole NPS and N fertilizer application. The highest grain yield of barley (4411 kg ha-1) also was recorded under the treatment of NPS and followed by NPS+K respectively, while lower grain yield (3960.6 kg ha-1) was recorded under the treatments of NPSBZn. Grain yield of bread also showed similar trend as grain yield of food barley at Moretena jiru and Mojana wedera districts. Generally the results of this experiment did not showed agronomical viable options due to utilization of potassium with recommended NP nutrient sources and micronutrients. The soil was deficient in organic matter, total nitrogen, and available phosphorus and adequate in available potassium. Thus it can be concluded that potassium is not a yield limiting nutrient but soil nitrogen and phosphorus management need especial attention.


2021 ◽  
Vol 11 (06) ◽  
pp. 352-365
Author(s):  
Adama Ouattara ◽  
Bazoumana Koulibaly ◽  
Déhou Dakuo ◽  
Kalifa Coulibaly ◽  
Pascal Bazongo ◽  
...  

2018 ◽  
Vol 111 (2) ◽  
pp. 271 ◽  
Author(s):  
Aydin KHODAEI-JOGHAN ◽  
Majid GHOLAMHOSEINI ◽  
Majid AGHA-ALIKHANI ◽  
Farhad HABIBZADEH ◽  
Ali SOROOSHZADEH ◽  
...  

<p>The main objectives of this research were to determine the effects of applying organic and chemical fertilizers under different irrigation regimes on sunflower (<em>Helianthus annuus</em> L.) morphological traits, yield components, grain yield and grain quality. The experiment was conducted as spilt plots based on a randomized complete block design with three replicates. Irrigation treatments at three levels (well-irrigated, mild and severe drought stress) were allocated to main plots and eight fertilizer treatments (urea (F1), urea + composted cattle manure (F2), zeocompost (F3), vermicompost (F4), zeolite-amended chicken manure (Z-ACM) (F5), zeocompost + vermicompost (F6), zeocompost + Z-ACM (F7) and vermicompost + Z-ACM (F8)) were randomized in sub-plots. The results showed that irrespective of the drought stress intensity, organic fertilizer treatments produced more dry matter, heavier and greater grain than did chemical treatments. In well-irrigated plots, the highest grain yield was obtained from F6, F7 and F8 treatments. Under drought stress conditions, the highest grain yield was obtained from the high zeolite content organic fertilizers i.e. F3, F5 and F7. We concluded that amending soil with organic fertilizers in combination with zeolite<em> </em>can be a beneficial approach for decreasing chemical fertilizer application rates and improving the sustainability of agricultural systems.</p>


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Tolera Abera ◽  
Tolcha Tufa ◽  
Tesfaye Midega ◽  
Haji Kumbi ◽  
Buzuayehu Tola

Barley is an important food and beverage crop in the highlands of Ethiopia, although intensive cultivation and suboptimal fertilizer application have caused nutrient depletion and yield decline. With this in view, integrated inorganic and organic fertilizer sources on yield and yield components of barley were studied. Ten treatments involving the sole NP, vermicompost, conventional compost, and farmyard manure based on N equivalency were laid out in a randomized complete block design with three replications in 2015 and 2016 cropping seasons. Significantly higher grain yield and biomass yield of barley were obtained with the application of sole recommended NP and the integrated use of 50 : 50% vermicompost and conventional compost with recommended NP. Mean grain yield of 2567 and 2549 kg·ha−1 barley was obtained from application of 50 :50% conventional compost and vermicompost based on N equivalence with recommended NP fertilizer rate, which markedly reduce the cost of chemical NP fertilizer required for the production of barley. The economic analysis confirmed the profitability of the integrated use of 50 : 50% conventional compost and vermicompost with recommended NP fertilizer for barley production. Therefore, the integrated use of 50 : 50% conventional compost and vermicompost based on N equivalency with recommended NP fertilizer was recommended for sustainable barley production in Chelia district and similar agroecology.


2018 ◽  
pp. 91-110
Author(s):  
Tatiana Kochanova

Тhe subject of this study is the young Republic of South Sudan (RSS), the “young” – both in terms of the age of an independent state, and in terms of its demographic potential. RSS, as a member of the United Nations and as a sovereign state, appeared on the world map in 2011, but, possessing super-rich natural resources, has not yet gained sustainable development, moreover, it fell into a deep military-political crisis. Like most countries of the African continent, South Sudan had real demographic capacity, but the authorities were unable to extract any “demographic dividends” from the truly main national resource for the development of the country’s economy, moreover, the number of refugees of young working age is constantly growing. Through the example of South Sudan, which so hard achieved separation of the South from the North and failed to take advantage of the conquered democratic values, the article explores the understudied problem of modification of the consciousness of the younger generation, dictated both by the specifics of the deep historical and cultural tradition of the South Sudanese nationalities and by new trends in global evolutionary processes. Studying the stories from the lives of multi-member families affected during the military-political conflict in the RSS, the author, based on the facts, strongly criticizes the ineffective, even often vicious, youth policy of the South Sudanese government. On the other hand, analyzing the origins, nature, basic traditional moral and sociocultural aspects of child employment in the region, the researcher finds a reasoned explanation of the cause for such a policy of universal child mobilization and tries to define this phenomenon that has not been studied in the scientific literature before. Summarizing the study of the causes of a humanitarian catastrophe in the RSS, the author, in addition to generally accepted factors that influenced the current situation (such as: the intervention of major world financial players in the affairs of a sovereign state, national discord, the struggle for power and resources), also highlights the subjective and not always correct work of the world information agencies and other mass media and, of course, the incompetent state policy of the leadership of the RSS in the Youth Field. Relying on the positive events of the past few months to resolve the conflict in the RSS, the author is still trying to predict in the foreseeable future the time for growth and development of the Republic of South Sudan, with the proviso that it can happen only in case of the inclusion of restraining leverage and expansion of the range of priorities of the main national resource – the youth.


2021 ◽  
Vol 3 (3) ◽  
pp. 458-477
Author(s):  
Mahdi Vahdanjoo ◽  
Claus G. Sorensen

A field area coverage-planning algorithm has been developed for the optimization and simulation of capacitated field operations such as the organic fertilizer application process. The proposed model provides an optimal coverage plan, which includes the optimal sequence of the visited tracks with a designated application rate. The objective of this paper is to present a novel approach for route planning involving two simultaneous optimization criteria, non-working distance minimization and the optimization of application rates, for the capacitated field operations such as organic fertilizer application to improve the overall operational efficiency. The study and the developed algorithm have shown that it is possible to generate the optimized coverage plan based on the required defined capacity of the distributer. In this case, the capacity of the distributer is not considered a limiting factor for the farmers. To validate this new method, a shallow injection application process was considered, and the results of applying the optimization algorithm were compared with the conventional methods. The results show that the proposed method increase operational efficiency by 19.7%. Furthermore, the applicability of the proposed model in robotic application were demonstrated by way of two defined scenarios.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Temesgen Godebo ◽  
Fanuel Laekemariam ◽  
Gobeze Loha

AbstractBread wheat (Triticum aestivum L.) is one of the most important cereal crops in Ethiopia. The productivity of wheat is markedly constrained by nutrient depletion and inadequate fertilizer application. The experiment was conducted to study the effect of nitrogen (N) and potassium (K) fertilizer rates on growth, yield, nutrient uptake and use efficiency during 2019 cropping season on Kedida Gamela Woreda, Kembata Tembaro Zone Southern Ethiopia. Factorial combinations of four rates of N (0, 23, 46 and 69 kg Nha−1) and three rates of K2O (0, 30 and 60 kg Nha−1) in the form of urea (46–0-0) and murate of potash (KCl) (0-0-60) respectively, were laid out in a randomized complete block design with three replications. The results showed that most parameters viz yield, yield components, N uptake and use efficiency revealed significant differences (P < 0.05) due to interaction effects of N and K. Fertilizer application at the rate of 46 N and 30 kg K ha−1 resulted in high grain yield of 4392 kg ha− 1 and the lowest 1041 from control. The highest agronomic efficiency of N (52.5) obtained from the application of 46 kg N ha−1. Maximum physiological efficiency of N (86.6 kg kg−1) and use efficiency of K (58.6%) was recorded from the interaction of 46 and 30 kg K ha−1. Hence, it could be concluded that applying 46 and 30 kg K ha−1was resulted in high grain yield and economic return to wheat growing farmers of the area. Yet, in order to draw sound conclusion, repeating the experiment in over seasons and locations is recommended.


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