Dry Matter, Grain Yield, and Yield Components of Dry Bean as Influenced by Nitrogen Fertilization and Rhizobia

2014 ◽  
Vol 45 (1) ◽  
pp. 111-125 ◽  
Author(s):  
N. K. Fageria ◽  
L. C. Melo ◽  
E. P. B. Ferreira ◽  
J. P. Oliveira ◽  
A. M. Knupp
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Yield Components ◽  
Dry Matter ◽  
Dry Bean ◽  
Yield And Yield Components

scholarly journals Calibration and test of the cropgro-dry bean model for edaphoclimatic conditions in the savanas of Central Brazil

2002 ◽  
Vol 59 (4) ◽  
pp. 723-729 ◽  
Author(s):  
Elza Jacqueline Leite Meireles ◽  
Antonio Roberto Pereira ◽  
Paulo Cesar Sentelhas ◽  
Luis Fernando Stone ◽  
Francisco José Pfeilsticker Zimmermann
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Simulation Models ◽  
Row Spacing ◽  
Dry Bean ◽  
Area Index ◽  
Central Brazil ◽  
Yield And Yield Components ◽  
Predicted Values ◽  
Bean Crop

Simulation models are important tools for the analysis of cultivated systems to estimate the performance of crops in different environments. The CROPGRO- model (DSSAT) was calibrated and validated using Carioca bean (Phaseolus vulgaris L.) to estimate yield and the development of the crop, sown in three row spacings (0.4, 0.5, and 0.6 m) and two fertilization rates (300 and 500 kg ha-1 of 4-30-16 N-P-K), in Santo Antônio de Goiás, GO, Brazil. To calibrate the model a combination of the genetic coefficients that characterize the phenology and morphology of the dry bean crop was used to obtain the best possible fit between predicted and observed anthesis and physiological maturity dates, leaf area index (LAI), total dry matter (TDM), yield components, and grain yield for the 0.6 m row spacing. To test the model the experimental records of the 0.4 and 0.5 m row spacings were used. In both, calibration and test, the performance of the model was evaluated plotting observed and predicted values of LAI and TDM versus time, using the r², and the agreement index (d) as statistical criteria. In relation to yield and yield components the percent difference between the observed and predicted data was calculated. The model appeared to be adequate to simulate phenology, grain yield and yield components for the Carioca bean cultivar, related to different levels of fertilization and row spacing, either during calibration or the testing phase. During the test, the grain yield was overestimated by less than 15.4%, indicating a potential use for the calibrated model in assessing climatic risks in this region.

Effects of sowing time and nitrogen fertiliser on canola and wheat, and nitrogen fertiliser on Indian mustard. I. Dry matter production, grain yield, and yield components

2001 ◽  
Vol 52 (6) ◽  
pp. 623 ◽  
Author(s):  
P. J. Hocking ◽  
M. Stapper
Keyword(s):  
Grain Yield ◽  
Canola Oil ◽  
Yield Components ◽  
Dry Matter ◽  
Indian Mustard ◽  
Sowing Time ◽  
Nitrogen Fertiliser ◽  
Yield And Yield Components ◽  
Oil Concentration ◽  
Late Sowing

Canola, Indian mustard, and wheat were grown under dryland conditions at Ariah Park and Cowra (canola only) in the cropping belt of New South Wales, Australia, to determine the effects of sowing time (canola and wheat) and nitrogen (N) fertiliser on the growth, grain yield, and yield components of the crops. Compared with an April sowing, the grain yield of canola at Ariah Park was reduced by 35% for a May sowing and by 67% for a July sowing. Canola yield at Cowra was reduced by 45% between early and late May sowings. Wheat yield declined by 35% between the May and July sowings at Ariah Park. Grain yields of canola and wheat at Ariah Park responded to N fertiliser in the April and May sowings, but not in the July sowing. Indian mustard had a higher yield than thecomparable sowing of canola. Canola yields at Cowra were more responsive to N fertiliser than at Ariah Park, and increased from 0.5 to 2.9 t/ha with 100 kg N/ha. For each day that sowing canola was delayed at both sites after Aprill—early May, anthesis was delayed on average by 0.52 days. For Dollarbird wheat, the delay in anthesis was 0.39 days per day sowing was delayed. Dry matter accumulation by the oilseeds was greatest during flowering, but before anthesis for wheat. Late sowing had little effect on the proportions of dry matter accumulated in a particular growth period. Irrespective of sowing time, grain yields and dry-matter harvest indices of the oilseeds were similar to values for wheat when differences in the biosynthetic costs of grain and straw production were taken into account. Late sowing usually resulted in a greater reduction in canola oil concentration than high N fertiliser rates. Canola oil concentration was reduced by 1.7 percentage points per 1mp;deg;C increase in mean temperature during grain filling as a result of sowing late. It was concluded that N fertiliser could not compensate for the yield reduction in canola and wheat due to sowing late. Early sowing was essential to achieve high oil levels in canola.

scholarly journals Grain Yield and Yield Components at Maize under Different Preceding Crops and Nitrogen Fertilization Conditions

2016 ◽  
Vol 10 ◽  
pp. 104-111 ◽  
Author(s):  
Adrian Gheorghe Băşa ◽  
Viorel Ion ◽  
Marin Dumbravă ◽  
Georgeta Temocico ◽  
Lenuţa Iuliana Epure ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Yield Components ◽  
Yield And Yield Components

scholarly journals Response of Maize (Zea mays L.) Grain Yield and Yield Components to Irrigation and Nitrogen Fertilization

2017 ◽  
Vol 18 (1) ◽  
pp. 55-72 ◽  
Author(s):  
Monika MARKOVI� ◽  
Marko JOSIPOVI� ◽  
Jasna �O�TARI� ◽  
Antun JAMBROVI� ◽  
Andrija BRKI�
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Yield Components ◽  
Zea Mays L ◽  
Yield And Yield Components

Effects of Plant Population on Sole-crop Cassava in Sierra Leone

1978 ◽  
Vol 14 (3) ◽  
pp. 239-244 ◽  
Author(s):  
W. Godfrey-Sam-Aggrey
Keyword(s):  
Sierra Leone ◽  
Yield Components ◽  
Dry Matter ◽  
Weight Ratio ◽  
Land Plant ◽  
Plant Population ◽  
Root Weight ◽  
Plant Populations ◽  
Sole Crop ◽  
Yield And Yield Components

SUMMARYEffects of plant population on mean yield and yield components of 2-year sole cassava crops were studied on Njala upland soils of Sierra Leone in two experiments. Increasing plant population of multi-shoot Cocoa cassava over 7000/ha decreased all the parameters studied except top/root weight ratio, which increased. The observed effects were attributed to competition for environmental resources, since area of land/plant unit decreased as plant population increased. The relations between plant populations and yields of fresh root and cortex dry matter were asymptotic, indicating that the respective yields were products of the vegetative phase of cropping.

scholarly journals PLANT DENSITY AND NITROGEN FERTILIZATION ON COMMON BEAN NUTRITION AND YIELD

2017 ◽  
Vol 30 (3) ◽  
pp. 670-678 ◽  
Author(s):  
ROGÉRIO PERES SORATTO ◽  
TIAGO ARANDA CATUCHI ◽  
EMERSON DE FREITAS CORDOVA DE SOUZA ◽  
JADER LUIS NANTES GARCIA
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Plant Density ◽  
N Fertilization ◽  
N Concentration ◽  
Plant Densities ◽  
N Rates ◽  
Lower Plant

ABSTRACT The objective of this work was to evaluate the effect of plant densities and sidedressed nitrogen (N) rates on nutrition and productive performance of the common bean cultivars IPR 139 and Pérola. For each cultivar, a randomized complete block experimental design was used in a split-plot arrangement, with three replicates. Plots consisted of three plant densities (5, 7, and 9 plants ha-1) and subplots of five N rates (0, 30, 60, 120, and 180 kg ha-1). Aboveground dry matter, leaf macro- and micronutrient concentrations, yield components, grain yield, and protein concentration in grains were evaluated. Lower plant densities (5 and 7 plants m-1) increased aboveground dry matter production and the number of pods per plant and did not reduce grain yield. In the absence of N fertilization, reduction of plant density decreased N concentration in common bean leaves. Nitrogen fertilization linearly increased dry matter and leaf N concentration, mainly at lower plant densities. Regardless of plant density, the N supply linearly increased grain yield of cultivars IPR 139 and Pérola by 17.3 and 52.2%, respectively.

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