scholarly journals Water management effects on irrigation cutback and yield performance of dry direct seeded boro rice

2020 ◽  
Vol 5 (1) ◽  
pp. 6-14
Author(s):  
Md Moshiur Rahman ◽  
Md Mehedi Masood ◽  
Md Abdur Rahman Sarkar
Keyword(s):  
Water Management ◽  
Grain Yield ◽  
Irrigation Water ◽  
Rice Variety ◽  
Grain Filling ◽  
Direct Seeding ◽  
Rice Varieties ◽  
Standing Water ◽  
Transplanted Rice ◽  
Direct Seeded

Dry direct seeding is an alternative rice production method that reduces 50-60% irrigation water required compared to the conventional method. The present study was undertaken with a view to optimize irrigation requirement for dry direct seeded rice. The experiment involved seven water management levels and two rice varieties in a split-plot design allocating water management levels in main plot and rice variety in sub-plot. The treatments were replicated thrice. The water management levels are (i) puddled transplanted rice with full irrigation (PTR-CI), (ii) puddled transplanted rice with alternate wetting and drying (AWD) irrigation (PTR-AWD), (iii) dry direct seeded rice with no standing water at all, (iv) dry direct seeding with AWD irrigation (DDSR-AWD), (v) dry direct seeded rice with 3-5 cm standing water from panicle initiation to heading, (vi) dry direct seeded rice with 3-5 cm standing water from panicle initiation to grain filling, (vii) dry direct seeded rice with 3-5 cm standing water from heading to grain filling. Two rice varieties included in the experiments are BRRI dhan28 and BRRI dhan29. The frequency and amount of irrigation for different plots were recorded. Data on different crop characters, yield and related attributes were collected and were subjected to statistical analysis using a computer package program MSTAT-C. The results reveal that rice gave the highest grain yield in dry direct seeding system where the standing water was maintained from panicle initiation stage to flowering (T5) or grain filling stage (T6) at reproductive phase. The T5 treatment required 7-9 irrigations whereas T6 required 9-12 irrigations. The treatment T5 required 50% less irrigation water than PTR-CI method. Thus, it may be concluded that dry direct seeded rice should be practiced for rice and standing water should be maintained from panicle initiation to heading for obtaining higher grain yield with least irrigation input. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (1), 6-14

Effect of weather on grain yield of direct seeded upland rice varieties in Jharkhand, India

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
Pragyan Kumari ◽  
P. Vijay Kumar ◽  
Ramesh Kumar ◽  
A. Wadood ◽  
Deepak Anuranjan Tirkey
Keyword(s):  
Grain Yield ◽  
Rice Yield ◽  
Upland Rice ◽  
Negative Relationship ◽  
Grain Filling ◽  
Rice Varieties ◽  
Rainfed Rice ◽  
Sunshine Hours ◽  
Direct Seeded ◽  
Average Minimum Temperature

The study was conducted at Birsa Agricultural University, Ranchi during the years 2009-2013 for understanding the effect of weather variables on the yield of three direct seeded upland rainfed rice varieties viz., Vandana, BVD-109 and BVD-111 in Jharkhand. Correlation and regression methods were used to estimate the impacts of weather on rice yield. Study indicated that temperature, rainfall and sunshine hours have significant effect on the rice yield. Average minimum temperature during sowing to vegetative stage in cv. Vandana and during flowering in BVD-109 and BVD-111 showed significant negative relationship with yield. Rainfall during vegetative and grain filling stage are significantly and positively related with grain yield in all the three rice varieties. The effect of sunshine hours on grain yield of rice was comparatively higher at milk stage than the other phenological stages in all three varieties. However, the effect of sunshine hours on yield is significant during the milk stage in Vandana and BVD-111 only. Multiple regressions using critical weather parameters in critical stages of the three varieties could explain the variability in yield of Vandana, BVD-109 and BVD-111 by 92, 74 and 91 percent, respectively.

Suitability of elite genotypes for wet-direct seeding in rice-rice system in Vertisol

2020 ◽  
Vol 57 (1) ◽  
pp. 36-42
Author(s):  
Soumya Saha ◽  
Mangal Deep Tuti ◽  
R Mahender Kumar ◽  
Bandeppa ◽  
T Vidhan Singh
Keyword(s):  
Total Duration ◽  
Direct Seeding ◽  
Growth And Yield ◽  
Rabi Season ◽  
Growth Duration ◽  
Rice Varieties ◽  
Growing Seasons ◽  
Transplanted Rice ◽  
Significant Difference ◽  
Direct Seeded

This study was conducted to evaluate few elite rice genotypes in wet-direct seeded system vis-à-vis conventional transplanting in clayey vertisol of Telangana during two consecutive seasons (rabi and kharif) of 2015-16. The experiment was laid out in split-plot design with two methods of crop establishment in main plots viz. conventional transplanting (CT) and direct seeded rice (DSR) in puddled condition with nine rice varieties of different growth duration in sub-plots and replicated thrice. Growth and yield attributing characters were not differed in both the establishment techniques. Grain yields during the rabi season was higher by about 1.5 % under DSR, whereas, during kharif it was about 1 % higher in transplanted rice. Total duration of cultivars was decreased in DSR to the tune of 14 days during two seasons. There was no significant difference in mean grain yield across rice cultivars in two consecutive growing seasons between direct seeding and conventional transplanting. During rabi season DRR Dhan 44, Rasi, DRRH-2, HRI-174, RNR 15048, RP Bio-226 performed well; whereas Rasi, DRR Dhan 44, DRRH-2 and Varadhan found suitable in kharif.

scholarly journals Rice insect pests and their natural enemies complex in direct seeded and transplanted rice (Oryza sativa) of Chidambaram areas of Cuddalore, India

2020 ◽  
Vol 12 (3) ◽  
pp. 349-353
Author(s):  
J Mary Lisha ◽  
R. Kanagarajan ◽  
S. Vijay ◽  
V. Baskaran
Keyword(s):  
Natural Enemies ◽  
Insect Pests ◽  
Rice Variety ◽  
Stem Borer ◽  
Rice Fields ◽  
Crop Damage ◽  
Rice Varieties ◽  
Transplanted Rice ◽  
Cereal Grain ◽  
Direct Seeded

Rice is the cereal grain that feeds half the planet. Rice fields are economically important as well as ecologically valuable. Rice fields are one of the biggest ecosystems that can be found in the tropics, including diverse insect pests and their natural enemies. In this view, rice varieties were sown in experimental plots of Faculty of Agriculture, Annamalai University, Chidambaram. The values are found significant at 5% level. To monitor the pest and natural enemies by using net sweeping and yellow pan trap method was used. The results showed that the maximum number of yellow stem borer was observed in the direct-seeded rice variety of CR Dhan 209 (7.33) and the leaf folder population was maximum in the direct-seeded rice variety of CR Dhan 204 (7.33). The peak population of grasshopper and green leafhopper was recorded in the transplanted rice variety of CR Dhan200 (11.33), CR Dhan 209 (8.00). The values were found significant at 5% level. The maximum number of Braconidae was observed in direct-seeded rice variety of CR Dhan 205 (3.66), and Ichneumonidae was recorded the highest number of direct-seeded and transplanted rice in the variety of CR Dhan 202 (3.00). The peak population of Trichogrammatidae was recorded in direct-seeded rice of CR Dhan 207 (3.66). The presence of Platygastridae was high in the transplanted rice variety of CR Dhan 201 (8.66), respectively. Among the rice ecosystems, more insect pests and crop damage were noticed in direct-seeded rice more than the transplanted rice.

scholarly journals Grain Yield of Hybrid Rice Varieties as Influenced by Seed Rates under Aerobic Direct Seeded Situation

2018 ◽  
Vol 7 (10) ◽  
pp. 2839-2845
Author(s):  
K. Jana ◽  
K. Mondal ◽  
S. Banerjee ◽  
S. Goswami ◽  
R. Mandal ◽  
...  
Keyword(s):  
Grain Yield ◽  
Hybrid Rice ◽  
Rice Varieties ◽  
Direct Seeded

scholarly journals Studies on Potential of Different Dates of Sowing and Varieties on Productivity of Aerobic Rice in Assam

2020 ◽  
pp. 557-565
Author(s):  
Bidisha Borah ◽  
Kalyan Pathak
Keyword(s):  
Grain Yield ◽  
Rice Variety ◽  
Canopy Temperature ◽  
Index Number ◽  
Dry Matter Accumulation ◽  
Rice Varieties ◽  
Area Index ◽  
Main Plot ◽  
Positive Effect ◽  
Plot Design

An investigation was carried out to determine an optimum micro-climate regimes for different promising varieties of rice for realizing higher yields under aerobic conditions. A field experiment was conducted in the Instructional Cum Research (ICR) Farm of Assam Agricultural University, Jorhat, Assam during autumn season of 2017. The experiment was laid out in a split-plot design with three replications. The treatments consisted of four micro-climatic regimes (M) in main plot viz., sowing of seed on 15th February (M1), 1st March (M2), 16th March (M3) and 1st April (M4) along with four different rice varieties (V) viz., CR-Dhan 205 (V1), CR-Dhan 203 (V2), CR-Dhan 204 (V3) and Inglongkiri (V4) in sub plot. The results of the experiment revealed that among the different micro-climatic regimes, the micro-climate associated with 1st April recorded positive effect on micro-climate related and yield parameters in terms of canopy temperature, light intensity, soil moister content, soil temperature, dry matter accumulation, leaf area index, number of effective tillers and grain yield (3004 kg/ha), followed by the micro-climate associated with 16th March sown crop. Among the varieties evaluated, CR-Dhan 203 recorded the highest value in terms of number of effective tillers (187/m2) followed by Inglongkiri, CR-Dhan 204 and CR-Dhan 205. The highest grain yield of 2860 kg/ha recorded in rice variety CR-Dhan 203 was significantly superior to that of other varieties except Inglongkiri. In terms of economics, the crop sown on 1st April recorded the highest net return (INR 51755 /ha) and B:C ratio (2.30) which was found to be the greatest.

Opener, packer wheel and packing force effects on crop emergence and yield of direct seeded wheat, canola and field peas

2003 ◽  
Vol 83 (1) ◽  
pp. 129-139 ◽  
Author(s):  
A. M. Johnston ◽  
G. P. Lafond ◽  
W. E. May ◽  
G. L. Hnatowich ◽  
G. E. Hultgreen
Keyword(s):  
Grain Yield ◽  
Environmental Conditions ◽  
Direct Seeding ◽  
Soil Conditions ◽  
High Soil Moisture ◽  
Pea Seedlings ◽  
Field Peas ◽  
Furrow Opener ◽  
Direct Seeded ◽  
Moisture Conditions

An understanding of the effects of different opener designs and on-row packing force would help producers in their selection of appropriate direct seeding implement options for their soil conditions. A field trial was conducted at three locations (Indian Head, Sylvania and Watrous) in Saskatchewan from 1997 to 1999 to evaluate the effect of opener-packer design (spoon-steel V packer; spoon-flat rubber packer; paired row-steel V packer; paired row-flat rubber packer; sweep-pneumatic tire) in combination with a range of on-row packing forces [0, 333, 549, 746, and 1000 Newton (N) per press wheel] on crop emergence and grain yield with direct seeding. The differences observed between opener-packer combinations in this study varied by less than 10% for grain yield, and were almost always associated with the opener design and not the packer type. Despite the variable results, there was a tendency for higher pea and wheat emergence with the sweep + tire compared with other opener types at those locations that tended to be drier in the spring. Also, grain yield tended to be greater for the sweep + tire in 1999 at Indian Head, when the heavy-textured soil at this site had high soil moisture conditions at seeding. The responses to packing force varied with different years and among the crops. Generally, 333 N per press wheel provided adequate emergence and grain yield across the environmental conditions encountered in this study, regardless of the opener-packer combination. In 1997, 5% more pea seedlings emerged with some amount of packing compared with no packing. Relative to the check, some packing resulted in wheat grain yield that was 13% greater at three of the location-by-year combinations, and wheat emergence that was 9% greater in 1998. However, with canola excessive packing force (i.e., the two highest vs. lower packing forces) resulted in 11 fewer seedlings m-2 in 1999. A packing pressure of 333 N per press wheel provided adequate emergence and grain yield across varied environmental conditions, with higher packing force only negatively influencing emergence in canola, and not yield. Key words: Furrow opener, packing force, emergence, direct seeding, zero till

Response of rice varieties to different sowing windows under Konkan conditions

2017 ◽  
Author(s):  
D. N. Jagtap ◽  
U. V. Mahadkar ◽  
S. A. Chavan
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Rice Variety ◽  
Rice Crop ◽  
Economic Returns ◽  
Rice Varieties ◽  
Straw Yield ◽  
Long Duration ◽  
Main Plot ◽  
Plot Design

A field experiment was conducted during kharif season 2015-16 to study the response of rice varieties to different sowing windows under Konkan conditions. The experiment was laid out in split plot design with three replications. The main plot treatments were three sowing windows, viz., 23rd Met Week, 24th Met Week, 25thMet Week. The sub plot treatments comprised five rice varietiesviz., Karjat-5, Palghar-1, Jaya, Swarna and Karjat-2. Thus there were 45 treatment combinations. Results revealed that rice crop sown on 23rd Met. Week recorded significantly higher grain yield (5782 kg ha-1) and straw yield (6462 kg ha-1). Long duration rice variety Swarna recorded the maximum grain yield (5782 kg ha-1) as well as straw yield (6462 kg ha-1), which was significantly higher over all other varieties under study except variety Jaya which was at par. From the present investigation it can be concluded that kharif rice in Konkan be sown during 23rd meteorological week with rice variety Swarna followed by conventional variety Jaya, so as to obtain higher yield and economic returns

scholarly journals MANEJO DA IRRIGAÇÃO PARA MAXIMIZAÇÃO DO RENDIMENTO DE GRÃOS DO FEIJOEIRO

Irriga ◽  
2003 ◽  
Vol 8 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Sidnei Osmar Jadoski ◽  
Reimar Carlesso ◽  
Giane Lavarda Melo ◽  
Marinice Rodrigues ◽  
Zolmir Frizzo
Keyword(s):  
Water Management ◽  
Grain Yield ◽  
Irrigation Water ◽  
Grain Weight ◽  
Irrigation Water Management ◽  
Randomized Design ◽  
Irrigation Depth ◽  
Set Up ◽  
Santa Maria ◽  
E Mail

MANEJO DA IRRIGAÇÃO PARA MAXIMIZAÇÃO DO RENDIMENTO DE GRÃOS DO FEIJOEIRO  Sidnei Osmar JadoskiCentro de Ciências Agrárias e ambientais,Universidade Estadual do Centro Oeste, Guarapuava, PR. CEP 85040-080. E-mail: [email protected] Carlesso Giane Lavarda Melo Marinice Rodrigues Zolmir FrizzoDepartamento de Engenharia Rural, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, RS. CEP 97119-900. E-mail: [email protected]  1 RESUMO  O objetivo do trabalho foi avaliar o efeito de diferentes manejos da irrigação através da aplicação de lâminas críticas determinadas a partir da evapotranspiração máxima da cultura, sobre o rendimento e componentes do rendimento de grãos do feijoeiro, bem como identificar a lâmina mais indicada para o manejo da irrigação da cultivar. O experimento foi conduzido no ano agrícola de 1999, em área do Departamento de Engenharia Rural da Universidade Federal de Santa Maria, RS. A cultivar de feijão preto BR-FEPAGRO 44 – Guapo brilhante (Tipo II) lançamento recente  da Embrapa, foi submetida a quatro manejos da água de irrigação. Os tratamentos constaram de aplicação de irrigações para elevar o conteúdo de água no solo ao limite superior de disponibilidade de água às plantas, quando a evapotranspiração máxima da cultura estimada pelo método do tanque Classe A, indicava lâminas acumuladas de 15, 30, 45 e 60 mm. Utilizou-se delineamento experimental inteiramente casualizado com cinco repetições. Os resultados demonstraram que a máxima eficiência técnica para o número de sementes por vagem, massa de mil sementes e rendimento de grãos foi obtida com a aplicação de lâminas críticas de irrigação de 26, 37 e 33 mm, respectivamente. Indicando a ocorrência de uma relação de compensação entre os componentes do rendimento massa de mil sementes e numero de sementes por vagem e definindo o emprego de lâmina de irrigação de aproximadamente 30 mm como o melhor manejo para maximizar o rendimento de grãos e o índice de área foliar ativo da cultivar em estudo.  UNITERMOS: feijão, lâminas de irrigação, rendimento de grãos, evapotranspiração.  JADOSKI, S. O.; CARLESSO, R.; MELO, G. L.; RODRIGUES, M.; FRIZZO, Z. IRRIGATION WATER MANAGEMENT TO MAXIMUM BEAN GRAIN YIELD  2 ABSTRACT  The objective of this paper was to evaluate the irrigation depth effects based on maximum crop evapotranspiration (ETm), on grain yield and yield components of beans, and determine the most suitable irrigation water management for bean. The experiment was held in the Agricultural Engineering Department of Santa Maria Federal University over 1999 growing season. The experiment was set up on a set of drainage evapotranspirometers under a removable rain shelter to protect plants against natural precipitation. The variety BR-FEPAGRO 44 (type II) was submitted to four irrigation water managements. The irrigation treatments were based on the ETm (15, 30, 45 and 60 mm, obtained from class A pan evaporation) and distributed on a completely randomized design with five replications. The results showed that the maximum technical efficiency for grains per pod, grain weight and yield were obtained through 26, 37 and 33 mm irrigation depth, respectively, which indicate the occurrence of a compensation relationship between grain weight and grains per pod.  KEYWORDS: Bean, evapotranspiration, irrigation depth, grain yield.

scholarly journals Response of Drought Tolerant Rice (Oryza sativa L.) Varieties under Various Methods of Establishment in Drought-prone Condition of Bihar

2019 ◽  
pp. 1-6
Author(s):  
Rajeev Singh ◽  
Ravi Ranjan Kumar ◽  
Nityanand . ◽  
R. K. Sohane ◽  
Anjani Kumar Singh ◽  
...  
Keyword(s):  
Oryza Sativa L ◽  
Cost Ratio ◽  
Rice Varieties ◽  
Yield Attributes ◽  
Net Return ◽  
Benefit Cost Ratio ◽  
Transplanted Rice ◽  
Drought Tolerant ◽  
Direct Seeded ◽  
Benefit Cost

A field experiment was conducted at Krishi Vigyan Kendra, Aurangabad and in farmers’ field during rainy seasons of 2013, 2014 and 2015, to Performance of drought tolerant rice varieties under various methods of stand establishment in rainfed drought-prone condition of Bihar. Experiment was laid out in a split-plot design with 3 methods of establishment i.e. broad coasting, direct seeded rice (DSR), and transplanted rice (TPR), and two varieties viz. Sahbhagiedhan, SushkeSamrat in a total of 5 replications including four at KVK, Aurangabad and one at farmers’ field during three years. Direct seeding of rice (DSR) with ZTD machine produced significantly higher plant height, number of tillers/m2, panicles/m2, grains/panicle, filled grains/panicle. However panicle length and Panicle weight were recorded maximum with   to transplanting method over Direct seeded rice with ZTD machine and broad coasting. 1000grain weight was recorded significantly maximum with Direct seeded rice with ZTD machine and transplantinh over broad coasting. Direct seed produced 7.60% and 30.95% more yield in 2014, 7.88% and 32.10% more yield in 2014 and 12.00% and 30.23% more yield in 2016 over transplanted and broad coasting rice, respectively. Net return and benefit-cost ratio were also significantly higher in direct seeded rice with ZTD machine than transplanted rice and broad coasting of rice. Amongst the varieties of rice, Sushk Samrat produced significantly higher yield attributes viz., tillers/m2, panicles/m2, grains/panicle, filled grains/panicle and 1000-grain weight, and subsequently produced grain yield higher by 13.42 in 2014, 10.10% in 2015 and by 7.03% in 2016 over Sahbhagie dhan. Net return and benefit-cost ratio were also recorded significantly higher with Sushk Samrat than Sahbhagiedhan.

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