scholarly journals Effect of Lopping on Lodging, Productivity and Labor Utilization for Rice Cultivation at Transplanting Aman Season

2019 ◽  
pp. 1-5
Author(s):  
Md. Sirajul Islam ◽  
Md. Mamunur Rashid ◽  
Setara Begum
Keyword(s):  
Rice Yield ◽  
Block Design ◽  
Rice Cultivation ◽  
Labor Requirement ◽  
Randomized Complete Block Design ◽  
Effect On Yield ◽  
Labor Requirements ◽  
Experimental Treatments ◽  
Labor Utilization ◽  
Positive Effect

To study the effect of lopping on lodging, productivity and labor utilization for rice cultivation an experiment was conducted at BRRI Farm, Gazipur during Transplanting Aman in a randomized complete block design (Factorial) with three replications. The experimental treatments were: three lopping Viz. i) Control i.e., no lopping ii) lopping at 30 DAT and iii) lopping at 45 DAT; and two cultivars viz. i) BR 22 and ii) BRRI dhan32. Interaction effect of lopping and variety was not significant. The tallest plant (123 cm) was found in ‘no lopping’ treatment followed by lopping at 30 and 45 DAT. A similar trend was observed in lodging (%) and labor requirement for harvesting of rice. Lopping at 45 DAT produced the highest number of filled grain panicle-1 (117), grain yield (5.9tha-1) and straw yield (6.5tha-1) followed by lopping at 30 DAT and no lopping (control). However, there was no significant effect of lopping on labor requirements for threshing of rice. Therefore, effect of lopping on the yield and yield contributing characters of rice showed that lopping had positive effect on yield and decreasing lodging tendency of the studied variety. It was found that lopping at 45 DAT and 30 DAT could increase the rice yield. BR22 and BRRI dhan32 had statistically similar effect on lodging tendency.

scholarly journals Effects of head pruning and different nutritional systems (chemical, biological and integrated) on seed yield and oil content in medicinal pumpkin (Cucurbita pepo L.)

2016 ◽  
Vol 61 (1) ◽  
pp. 103-112
Author(s):  
Dariush Zarei ◽  
Ghobad Shabani ◽  
Reza Chaichi ◽  
Ali Akbarabadi
Keyword(s):  
Oil Content ◽  
Cucurbita Pepo ◽  
Seed Oil ◽  
Block Design ◽  
Growth And Yield ◽  
Randomized Complete Block Design ◽  
Four Levels ◽  
Experimental Treatments ◽  
Biological Fertilizer ◽  
Positive Effect

To evaluate the effect of head pruning and different nutritional systems (chemical, biological and integrated) on yield and seed oil content in medicinal pumpkin (Cucurbita pepo L.), an experiment was conducted in Kermanshah/Iran during the 2013 growing season. The experimental treatments consisted of two levels - no head pruning, control (Co) and head pruning (C1) allocated to the main plots. Four levels of different fertilizing systems - control (without fertilizer) (T0), chemical (T1), biological (a combination of nitrogen fixing bacteria, Azospirillum brasilense and Glomus mosseae) (T2), and integrated fertilizing system (biological fertilizer + 50% chemical fertilizer) (T3) were assigned to the sub-plots. The experimental treatments were arranged as a split plot based on a randomized complete block design with three replications. The results showed that the highest percentage of seed oil was obtained (37%) in the integrated nutritional system along with the head pruning treatment. The highest grain yields of 53 and 50 g per square meter were obtained in integrated and chemical fertilizing systems, respectively while no pruning was applied. The highest fruit yields of 3,710 and 3,668 kg per hectare were produced by chemical and integrated fertilizing systems, respectively. The biological nutrition system required more time to demonstrate its positive effect on the growth and yield of medicinal pumpkin.

scholarly journals Evaluation of Urea Super Granule as a Source of Nitrogen in Transplant Aman Rice

2014 ◽  
Vol 24 (1-2) ◽  
pp. 29-37 ◽  
Author(s):  
TA Qurashi ◽  
MA Salam ◽  
M Jannat ◽  
MG Rabbani
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Block Design ◽  
Prilled Urea ◽  
Randomized Complete Block Design ◽  
Yield And Yield Components ◽  
Use Efficiency ◽  
Experimental Treatments ◽  
N Management ◽  
1000 Grain Weight

An experiment was carried out at Bangladesh Agricultural University, Mymensingh to evaluate the effect of urea super granule (USG) as a source of nitrogen on the yield and yield components of transplant Aman rice cv. BRRI dhan39, BRRI dhan46 and BINA dhan7. Five levels of N (viz., 0, 60, 120 kg ha-1 as prilled urea and 60 and 120 kg ha-1 as USG) were taken as experimental treatments. The experiment was laid out in a randomized complete block design with three replications. Plant height, effective tillers hill-1, grains panicle-1 and grain yield varied significantly due to different cultivars. All the yield and yield components except 1000-grain weight were influenced significantly by the levels of nitrogen fertilizer. The highest grain yield (4.82 t ha-1) was recorded in BINA dhan7 and the lowest one (4.30 t ha-1) was recorded in BRRI dhan39. Nitrogen @ 120 kg ha-1 as USG performed the best among the treatments in respect of yield and yield components of rice. The highest grain yield (5.46t ha-1) was obtained from BINA dhan7 with 120 kg N ha-1 as USG which was statistically identical with 60 kg N ha-1 as USG. A considerable amount (31.25%) of prilled urea (PU) nitrogen could be saved by using USG. It may be concluded that USG could be used as N management to achieve better nitrogen use efficiency in reducing N loss than the PU.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19095 Progress. Agric. 24(1&2): 29 - 37, 2013

scholarly journals Evaluation of nitrogen (Urea) on Zea mays L. under Balkh province climate

2020 ◽  
Vol 3 (1) ◽  
pp. 6-9
Author(s):  
Nasratullah Habibi ◽  
Friba Sikandari
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Randomized Complete Block Design ◽  
Yield And Yield Components ◽  
Effect On Yield

An experiment was conducted to evaluate effect of urea fertilizer on yield and yield components of Zea mays L. Using Randomized Complete Block Design (RCBD) split plots in three replications in agricultural research farm of Balkh University by 2019. Doses of urea used in this experiment were 0, 80, 160 and 240 kg ha-1 , respectively. It has been found that amount of nitrogen fertilizer (urea) had significant effect on yield of maize at p<0.05. The higher level of nitrogen caused the higher grain yield, number of kernels per ear, the number of grains per ear row, ear diameter, cob length, grain per plant and plant height. As a result 7.76 ton ha-1 was recorded as high yield while 240 kg ha-1 urea was used, and 5.12 ton ha-1 was recorded as low yield in treatment one with 0 kg ha-1 of nitrogen fertilizer. Finally, as a result using 240 kg ha-1 nitrogen fertilizer is recommended.

scholarly journals Effect of biostimulants on dry matter accumulation and gas exchange in plantain plants (Musa AAB)

2019 ◽  
Vol 13 (2) ◽  
pp. 151-160
Author(s):  
Diana Mateus-Cagua ◽  
Gustavo Rodríguez-Yzquierdo
Keyword(s):  
Gas Exchange ◽  
Dry Matter ◽  
Photosynthetic Activity ◽  
Leaf Gas Exchange ◽  
Block Design ◽  
Dry Matter Accumulation ◽  
Vegetative Phase ◽  
Physiological Processes ◽  
Randomized Complete Block Design ◽  
Positive Effect

Biostimulants can potentially improve plant growth and development, modifying physiological processes. This study evaluated the effect of four biostimulants on the growth of ‘Hartón’ plantain plants and the leaf gas exchange during the vegetative phase. This experiment was developed on a plantain farm’s nursery in Fuente de Oro (Colombia) with a randomized complete block design with four replicates. The treatments were the biostimulants: Bactox WP®: Bacillus subtilis (Bs); Baliente®: Bacillus amyloliquefaciens (Ba); Tierra Diatomeas®: silicon dioxide (Si); Re-Leaf®: salicylic acid (SA) and the control (water). All products had a positive effect on the accumulation of total dry matter (DM) (between 58.4 and 21.9%) and on the photosynthetic activity (a maximum of 110 and 24.3% in first and second evaluation), as compared to the control, while no differences were found (P>0.05) for the foliar emission rate and chlorophyll content between the treatments. The plants treated with Bs had the greatest DM accumulation at the end of the study and a constant, high photosynthetic activity. All the while Bs, Ba and Si managed to stimulate greater early photosynthetic activity. According to the results, the use of these biostimulants during the vegetative phase had an effect on the physiological processes that enhance DM accumulation in plantain plants, which could be potentially useful for the transplanting stage and increase the reserves used during their establishment and development in the field.

Pengaruh Baja Nitrogen (N) dan Kalium (K) Terhadap Padi Varieti MR 269 dan MR 284 di Sungai Nibong (PBLS)

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Ahmad Arif Ismail ◽  
Ismail Che Haron ◽  
Wan Zaki Wan Mamat ◽  
Muhammad Naim Fadzli Abd. Rani
Keyword(s):  
Significant Interaction ◽  
Rice Yield ◽  
Block Design ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Rice Varieties ◽  
Fertilizer Recommendation ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
K Fertilizer

An experiment to study influence of nitrogen (N) and potassium (K) on new rice varieties MR 269 and MR 284 has been carried out in Parit 12 Sungai Nibong, Sekinchan, 45400, Sabak Bernam, Selangor from February 2012 to January 2013. Compatibility tests need to be carried out on current fertilizer recommendation towards these new rice varieties. There are three rates used in this experiment which are 0, 100 and 200 kg/ha for both N and K fertilizer. The experimental design used in this experiment is Randomized Complete Block Design (RCBD) with 3 replications. A set of 54 small plots were erected with 4 m x 4 m in size. Manual Teknologi Penanaman Padi Lestari is used as crop management guideline for this experiment. Results indicated no significant interaction between N and K on yield of the newly tested rice varieties. The rice yield was significantly affected by N but not by K. Results suggest that there is significant interaction between cropping season and N towards rice yield. Analysis showed that fertilizer application of N up to 200 kg/ha contributed to higher yield in first season (Off-season). However, yield increment in season 2 (main season) only took place up until N fertilizer application at 100 kg/ha and began to drop when subsequent additional of 200 kg/ha. This study indicated that number of panicle and number of seed per panicle had positive influence to the rice yield.

scholarly journals Nutrient management on the growth and yield of black cumin (Nigella sativa L.)

2018 ◽  
Vol 43 (2) ◽  
pp. 205-210
Author(s):  
MN Yousuf ◽  
AJMS Karim ◽  
ARM Solaiman ◽  
MS Islam ◽  
M Zakaria
Keyword(s):  
Seed Yield ◽  
Nutrient Management ◽  
Nigella Sativa ◽  
Block Design ◽  
Winter Season ◽  
Research Field ◽  
Growth And Yield ◽  
Black Cumin ◽  
Randomized Complete Block Design ◽  
Positive Effect

A field experiment was carried out at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, during rabi (winter) season of 2016-17 to evaluate the effects of fertilizer treatments on black cumin (BARI Kalozira-1). The field belongs to Shallow red-brown terrace soil of Salna series under AEZ-28 (Madhupur Tract). The experiment was laid out in randomized complete block design (RCBD) with three replications. Results showed that the application of nutrient elements had positive effect on plant height, branches per plant, capsule setting, umbels per plant, capsules per plant, capsule size, seeds per capsule, 1000-seed weight and seed yield of black cumin. The highest seed yield (1277 kg ha-1) was obtained from 75% RDCF + 25% cowdung-N treatment followed by 100% RDCF (N80P45K50S20Zn5B2 kg ha-1) and the lowest seed yield (420 kg ha-1) was recorded with 50% RDCF. Thus, the IPNS treatment 75% RDCF + 25% cowdung-N appeared to be the best suitable package for black cumin cultivation in this location.Bangladesh J. Agril. Res. 43(2): 205-210, June 2018

scholarly journals Supplementation of grazing beef cattle with narasin

2020 ◽  
Vol 55 ◽  
Author(s):  
Luiz Guilherme Mezzena Gobato ◽  
Daniel Montanher Polizel ◽  
Marcos Vinícius de Castro Ferraz Júnior ◽  
Alexandre Arantes Miszura ◽  
José Paulo Roman Barroso ◽  
...  
Keyword(s):  
Body Weight ◽  
Block Design ◽  
Average Daily Gain ◽  
Initial Body Weight ◽  
Mineral Supplement ◽  
Protein Supplements ◽  
Randomized Complete Block Design ◽  
Daily Gain ◽  
Positive Effect ◽  
Supplement Intake

Abstract: The objective of this work was to evaluate the effect of narasin inclusion in mineral and protein supplements on the performance and supplement intake of grazing beef yearlings. One hundred and fifty Nellore yearlings with 17.0±0.06 months of age and 219.7±1.62 kg initial body weight (BW) were allocated into 30 experimental units (EUs), with five animals each. The EUs were assigned to 16 paddocks, which were continuously stocked for 28 days, followed by 28 days of rest. A randomized complete block design was used. The experiment lasted 140 days, divided into five periods of 28 days each. The assessed treatments were: control mineral supplement (CON); CON + 1,800 (N1800) or 2,750 (N2750) mg narasin per kilogram of supplement; and protein mineral supplement (PROT) or PROT + 360 mg narasin per kilogram of supplement (PROT 360). The inclusion of narasin in the mineral supplement increased average daily gain (ADG) in the first period and decreased supplement intake in the first, second, and third periods, when compared with the CON treatment. The ADG and supplement intake were similar between the N1800 and N2750 treatments. Narasin has a positive effect on ADG up to 28 days of supplementation and controls mineral supplement intake, without compromising this gain.

scholarly journals Genetic variability and yield components of yard long bean (Vigna unguiculata var. sesquipedalis L.)

2021 ◽  
Vol 82 (3) ◽  
pp. 107-122
Author(s):  
Zakia Sultana ◽  
Nahid Ahmed ◽  
Mohammad Saiful Islam ◽  
Abdur Rahim
Keyword(s):  
Genetic Variability ◽  
Vigna Unguiculata ◽  
Block Design ◽  
Pod Yield ◽  
Randomized Complete Block Design ◽  
Days To Maturity ◽  
Cluster Distance ◽  
High Heritability ◽  
Positive Effect ◽  
Pod Number

Yard long bean (Vigna unguiculata var. sesquipedalis L.) is one of the important leguminous vegetables in Bangladesh. However, yield of this vegetable is much lower in Bangladesh compared to other yard long beangrowing countries. Therefore, it is crucial to improve the yield of this vegetable. In the present study, genetic variability, heritability, character association and genetic diversity were evaluated on randomized complete block design with three replications among seven-yard-long bean genotypes. The genotypes were significantly variable for the studied characters. High genotypic and phenotypic coefficient of variation was observed in number of pods per plant and pod yield per plant. Accordingly, high heritability together with high genetic advance in percent of mean was observed in number of pod per plant, pod diameter and hundred seed weight. The correlation studies revealed that pod yield per plant showed significant positive correlation with number of seed per pod, number of pods per plant while significantly negative correlation with days to marketable harvest at both genotypic and phenotypic level. Path analysis revealed days to first flowering, days to maturity, number of pods per plant, pod weight and number of seeds per pod had direct positive effect on pod yield per plant. The studied genotypes were clustered into 3 groups with highest of inter-cluster distance between cluster I and III while lowest between cluster II and III. The genotypes of cluster I exhibited higher mean performance while lower in cluster III for important traits including pod yield per plant.

scholarly journals Effects of NP-SR Fertilizer Composition and Water Logging on Soil Chemical Properties and N Fertilizer Efficiency in Paddy Field

2021 ◽  
Vol 9 (1) ◽  
pp. 10-19
Author(s):  
Tiara Kartika Sari ◽  
Muhammad Rif’an ◽  
Sakhidin Sakhidin
Keyword(s):  
Rice Yield ◽  
Block Design ◽  
Chemical Properties ◽  
N Fertilizer ◽  
Soil Chemical Properties ◽  
Nitrogen Efficiency ◽  
Fertilizer Efficiency ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Food Commodity

Rice is the primary food commodity in Indonesia. To increase the rice production, urea fertilizer has been excessively used, specifically on marginal land. However, it has no desired effect on the plant’s Nitrogen uptake due to volatilization. Previous studies suggest the use of zeolite to be mixed with urea to reduce the volatilization rate. This study aimed to determine the effect of six NP-SR (Nitrogen Phosphorus Slow Release) fertilizer compositions (without NP-SR; 20.69-0; 19.7-5; 17.27-10; 15.9-15; and 18.94-20) on soil chemical properties, nitrogen efficiency, and paddy rice yield on Ultisols at three waterlogging levels (0.5 cm, 3 cm, and 5 cm). The study was an experiment arranged in a Randomized Complete Block Design (RCBD) consisting of two factors, which were waterlogging levels and NP-SR fertilizer compositions. The results showed that waterlogging treatments significantly affected soil chemical properties in the initial vegetative and harvest phases. It can be concluded that the treatment of flooding (up to 3 cm) and fertilizer (NP-SR of 15.90-15) application could significantly reduce the volatilization rate, increase the efficiency of N fertilizer, and increase rice yield.

scholarly journals Path analysis of yield components in tropical pumpkin

1969 ◽  
Vol 90 (3-4) ◽  
pp. 183-191
Author(s):  
Miguel Espitia-Camacho ◽  
Franco A. Vallejo-Cabrera ◽  
Diosdado Baena-Garcia ◽  
Linda Wessel-Beaver
Keyword(s):  
Path Analysis ◽  
Indirect Effects ◽  
Block Design ◽  
Genetic Correlations ◽  
Fruit Weight ◽  
Residual Effects ◽  
Path Coefficient ◽  
Direct Effects ◽  
Randomized Complete Block Design ◽  
Effect On Yield

Path coefficient analysis was carried out in tropical pumpkin (Cucurbita moschata Duchesne) for yield per plant as a function of number of fruit per plant and weight per fruit, using phenotypic and genetic correlations from two diallels: one using five varieties (variety diallel) and a second using five S1 lines derived from the varieties (line diallel). A randomized complete block design with five replications was used to evaluate 15 genotypes from each diallel, not including reciprocals. Direct effects were 300 to 500% greater than indirect effects in the line diallel. In contrast, direct effects were only 17 to 68% greater than indirect effects in the variety diallel. Effects (direct and indirect) were greater (17 to 500%) when genetic correlations rather than phenotype correlations (42 to 440%) were used in the path analysis. Fruit weight showed a greater effect on yield than did number of fruit, with values between 3.2 to 4.9 times the residual effects. Fruit weight and number of fruit can be used as selection criteria to increase yield in tropical pumpkin.  

Sign in / Sign up

Export Citation Format

Share Document