productivity of wheat and alfalfa under intercropping

1991 ◽  
Vol 27 (4) ◽  
pp. 391-395 ◽  
Author(s):  
H. M. Abdel Magid ◽  
M. F. Ghoneim ◽  
R. K. Rabie ◽  
R. E. Sabrah
Keyword(s):  
Saudi Arabia ◽  
Grain Yield ◽  
Protein Content ◽  
Field Experiments ◽  
Grain Protein Content ◽  
Nitrogen Application ◽  
Wheat Grain ◽  
Protein Percentage ◽  
Herbage Yield ◽  
Additional Nitrogen

SUMMARYField experiments were carried out under irrigation in Central Saudi Arabia during the winters of 1987–88 and 1988–89 to examine the productivity and quality (grain protein content) of wheat intercropped with inoculated and uninoculated alfalfa with or without additional nitrogen. Nitrogen increased wheat grain yield and protein percentage but inoculation of the alfalfa had no additional effect. Herbage yield of intercropped alfa4fa was unaffected by nitrogen application. Added nitrogen reduced the protein percentage in alfalfa but increased its protein yield. Intercropping had benefits for alfalfa, increasing its protein content and yield.Siembra simultánea de trigoy alfalfa

scholarly journals Multi-Temporal and Spectral Analysis of High-Resolution Hyperspectral Airborne Imagery for Precision Agriculture: Assessment of Wheat Grain Yield and Grain Protein Content

2018 ◽  
Vol 10 (6) ◽  
pp. 930 ◽  
Author(s):  
Francelino A. Rodrigues ◽  
Gerald Blasch ◽  
Pierre BlasDefournych ◽  
J. Ivan Ortiz-Monasterio ◽  
Urs Schulthess ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
High Resolution ◽  
Grain Yield ◽  
Protein Content ◽  
Precision Agriculture ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Wheat Grain ◽  
Multi Temporal

Triticale and barley for grain and for dual-purpose (forage+grain) in a Mediterranean-type environment. II. Yield, yield components, and quality

1997 ◽  
Vol 48 (4) ◽  
pp. 423 ◽  
Author(s):  
C. Royo ◽  
F. Tribó
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Crude Protein ◽  
Field Experiments ◽  
Grain Protein Content ◽  
Yield Potential ◽  
Grain Protein ◽  
Dual Purpose ◽  
Winter Triticale ◽  
Spring Triticale

Four field experiments were conducted over 2 years and at 2 sites under irrigation and with high soil fertility in north-eastern Spain. Two 6-rowed barley varieties, 3 spring triticales, and 2 winter triticales were evaluated for grain yield and for forage and grain production in the same cropping season. Forage was cut at the first node detectable stage and grain was harvested at ripening in both cut and uncut plots. Forage and grain yields did not differ significantly between species. Forage yield was positively and strongly related to the time between sowing and cutting. Forage quality and grain protein content were similar in barley, spring triticale, and winter triticale. Forage crude protein averaged 25·3%, digestible crude protein 19·4%, and acid detergent fibre 21·9%. Grain protein content averaged 15·4%. The reduction in grain yield caused by clipping ranged from 7 to 70% in barley, 10 to 21% in spring triticale, and 8 to 24% in winter triticale. Grain yield after cutting decreased drastically when the thermal time between cutting and physiological maturity was lower than 1000 growing degree-days (GDD), being independent of this duration for values >1100 GDD. Reductions in grain yield after forage removal were caused mainly by reductions in grain weight. A strong relationship appeared between grain yield in the uncut treatment and grain yield after forage removal, suggesting that breeding for dual purpose could take advantage of the efforts made to increase grain yield potential.

scholarly journals Simulating the Response of Drought–Tolerant Maize Varieties to Nitrogen Application in Contrasting Environments in the Nigeria Savannas Using the APSIM Model

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 76
Author(s):  
Aloysius Beah ◽  
Alpha Y. Kamara ◽  
Jibrin M. Jibrin ◽  
Folorunso M. Akinseye ◽  
Abdullahi I. Tofa ◽  
...  
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Production Systems ◽  
Agricultural Practices ◽  
Net Income ◽  
Nitrogen Application ◽  
N Application ◽  
Area Index ◽  
Support Tool ◽  
Maize Varieties

This paper assessed the application of the Agricultural Production Systems sIMulator (APSIM)–maize module as a decision support tool for optimizing nitrogen application to determine yield and net return of maize production under current agricultural practices in the Nigeria savannas. The model was calibrated for two maize varieties using data from field experiments conducted under optimum conditions in three locations during the 2017 and 2018 cropping seasons. The model was evaluated using an independent dataset from an experiment conducted under different nitrogen (N) levels in two locations within Southern and Northern Guinea savannas. The results show that model accurately predicted days to 50% anthesis and physiological maturity, leaf area index (LAI), grain yield and total dry matter (TDM) of both varieties with low RMSE and RMSEn (%) values within the range of acceptable statistics indices. Based on 31-year seasonal simulation, optimum mean grain yield of 3941 kg ha−1 for Abuja, and 4549 for Kano was simulated at N rate of 120 kg ha–1 for the early maturing variety 2009EVDT. Meanwhile in Zaria, optimum mean yield of 4173 kg ha–1 was simulated at N rate of 90 kg ha−1. For the intermediate maturing variety, IWDC2SYNF2 mean optimum yields of 5152, 5462, and 4849 kg ha−1, were simulated at N application of 120 kg ha−1 for all the locations. The probability of exceeding attainable mean grain yield of 3000 and 4000 kg ha−1 for 2009EVDT and IWDC2SYNF2, respectively would be expected in 95% of the years with application of 90 kg N ha−1 across the three sites. Following the profitability scenarios analysis, the realistic net incomes of US$ 536 ha–1 for Abuja, and US$ 657 ha−1 for Zaria were estimated at N rate of 90 kg ha−1 and at Kano site, realistic net income of US$ 720 ha–1was estimated at N rate of 120 kg ha−1 for 2009EVDT.For IWDC2SYNF2, realistic net incomes of US$ 870, 974, and 818 ha−1 were estimated at N application of 120 kg ha−1 for Abuja, Zaria, and Kano respectively. The result of this study suggests that 90 kg N ha−1 can be recommended for 2009EVDT and 120 kg N ha–1 for IWDC2SYNF2 in Abuja and Zaria while in Kano, 120 kg N ha−1 should be applied to both varieties to attain optimum yield and profit.

Comparisons of sensors to predict spring Wheat grain yield and protein content

2021 ◽  
Author(s):  
Donald Veverka ◽  
Amitava Chatterjee ◽  
Melissa Carlson
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Wheat Grain

Variability for grain protein content among germplasm accessions and advanced breeding lines in dolichos bean (Lablab purpureus L. Sweet var. Lignosus Prain)

2018 ◽  
Vol 17 (03) ◽  
pp. 289-292
Author(s):  
Pranesh ◽  
S. Ramesh
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Protein Energy Malnutrition ◽  
Target Population ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Lablab Purpureus ◽  
Breeding Lines ◽  
Protein Rich ◽  
Germplasm Accessions

AbstractProtein energy malnutrition (PEM) is prevalent in south-east Asian countries including India. Breeding and introduction of grain protein-rich varieties of legumes such as dolichos bean is considered as cost-effective approach to combat PEM. Exploitation of genetic variability within germplasm accessions (GAs) and/or breeding populations is the short-term strategy for identification and delivery of protein-rich dolichos bean cultivars to cater to the immediate needs of the farmers and target population. A set of 118 dolichos bean genotypes consisting of 96 GAs and 20 advanced breeding lines (ABLs) and two released varieties (RVs) was field evaluated in augmented deign for dry grain yield per plant and their grain protein contents were estimated. The grain protein content among the genotypes ranged from 18.82 to 24.5% with a mean of 21.73%. The magnitude of estimates of absolute range, standardized range, and phenotypic coefficient of variation (PCV) for grain protein content was higher among GAs than those among ABLs + RVs. However, average grain protein contents of GAs were comparable to those of ABLs + RVs. Nearly 50% of the genotypes (mostly GAs) had significantly higher grain protein content than those of RVs, HA 3 and HA 4. The grain protein contents of the genotypes were poorly correlated with grain yield per plant. These results are discussed in relation to strategies to breed grain protein-rich dolichos bean cultivars.

scholarly journals Yield and quality of aromatic fine rice as affected by variety and nutrient management

2016 ◽  
Vol 12 (2) ◽  
pp. 279-284 ◽  
Author(s):  
SK Sarkar ◽  
MAR Sarkar ◽  
N Islam ◽  
SK Paul
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Nutrient Management ◽  
Poultry Manure ◽  
Grain Protein Content ◽  
Recommended Dose ◽  
Panicle Length ◽  
Inorganic Fertilizers ◽  
Yield And Quality

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, to study the yield and quality of aromatic fine rice as affected by variety and nutrient management during the period from June to December 2013. The experiment comprised three aromatic fine rice varieties viz. BRRI dhan34, BRRI dhan37 and BRRI dhan38, and eight nutrient managements viz. control (no manures and fertilizers), recommended dose of inorganic fertilizers, cowdung at 10 t ha-1, poultry manure at 5 t ha-1, 50% of recommended dose of inorganic fertilizers + 50% cowdung, 50% of recommended dose of inorganic fertilizers + 50% poultry manure, 75% of recommended dose of inorganic fertilizers + 50% cowdung and 75% of recommended dose of inorganic fertilizers + 50% poultry manure. The experiment was laid out in a randomized complete block design with three replications. The tallest plant (142.7 cm), the highest number of effective tillers hill(10.02), number of grains panicle (152.3), panicle length (-1 -122.71cm), 1000-grain weight (15.55g) and grain yield (3.71 t ha-1) were recorded in BRRI dhan34. The highest grain protein content (8.17%) was found in BRRI dhan34 whereas the highest aroma was found in BRRI dhan37 and BRRI dhan38. The highest number of effective tillers hill(11.59), number of grains panicle (157.6), panicle length (24.31 cm-1-1) and grain yield (3.97 t ha-1) were recorded in the nutrient management of 75% recommended dose of inorganic fertilizers + 50% cowdung (5 t ha-1). The treatment control (no manures and fertilizers) gave the lowest values for these parameters. The highest grain yield (4.18 t ha-1) was found in BRRI dhan34 combined with 75% recommended dose of inorganic fertilizers + 50% cowdung, which was statistically identical to BRRI dhan34 combined with 75% of recommended dose of inorganic fertilizers + 50% poultry manure and the lowest grain yield (2.7 t ha-1) was found in BRRI dhan37 in control (no manures and fertilizers). The highest grain protein content (10.9 %) was obtained in the interaction of BRRI dhan34 with recommended dose of inorganic fertilizers which was as good as that of BRRI dhan38 and 75% of recommended dose of inorganic fertilizers + 50% poultry manure. The highest aroma was found in BRRI dhan38 combined with 75% recommended dose of inorganic fertilizers + 50% cowdung.J. Bangladesh Agril. Univ. 12(2): 279-284, December 2014

Sign in / Sign up

Export Citation Format

Share Document