scholarly journals Assessment of triasulfuron on weed dynamics and yield of transplanted rice (Oryza sativa L.)

2018 ◽  
Vol 10 (3) ◽  
pp. 935-938
Author(s):  
Samartha Tewari ◽  
Rohitashav Singh ◽  
Anil Nath ◽  
Deepak Pandey
Keyword(s):  
Oryza Sativa ◽  
Field Experiment ◽  
Dry Matter ◽  
Oryza Sativa L ◽  
Block Design ◽  
Growth Period ◽  
Metsulfuron Methyl ◽  
Transplanted Rice ◽  
Broad Leaf ◽  
Weed Dynamics

A field experiment was managed during kharif season of 2014 in G. B. Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) to assess the outcome of applying dissimilar rates of triasulfuron on the  transplanted rice (Oryza sativa L.) associated weeds. Treatments composed of triasulfuron at three different rates, metsulfuron methyl, ethoxysulfuron, 2, 4-D with 2 checks (weed free and untreated). Experiment was carried out in Randomised block Design with 8 treatments and 3 replications. Grassy weeds, broad leaf weeds and sedges were observed during the crop growth period. Triasulfuron at 12 g ha-1 proved most efficient in controlling weeds at 60 and 90 days after transplanting (DAT) with 44.4 % and 59.6 % WCE respectively. Minimum weed dry matter (65.1 g m2) was observed with triasulfuron at 12 g ha-1. Out of all the herbicidal treatments, triasulfuron at 12 g ha-1 gave the paramount grain yield of rice (5786 kg ha-1) which was significantly surpassing all other herbicidal treatments, while it was minimum in metsulfuron methyl at 4 g ha-1 (4417 kg ha-1).

scholarly journals Combined effect of land preparation methods and planting geometry on the performance of machine transplanted rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1855-1860
Author(s):  
R. B. Negalur ◽  
A. S. Halepyati ◽  
B. G. Masthanaredy
Keyword(s):  
Oryza Sativa ◽  
Dry Matter ◽  
Oryza Sativa L ◽  
Research Station ◽  
Dry Matter Accumulation ◽  
Preparation Methods ◽  
Area Index ◽  
Land Preparation ◽  
Transplanted Rice ◽  
Planting Geometry

Field experiment on effect of land preparation methods and planting geometry on growth and yield of machine transplanted rice (Oryza sativa L.) was conducted at Agricultural Research Station, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka during kharif, 2012 and 2013 in clay soil under irrigated condition.Pooled mean indicated that, among the different land preparation methods and planting geometry puddling with rotovator fb levelling with spike tooth harrow and planting geometry of 30 x 21 cm recorded significantly higher growth parameters viz., Leaf area index ( 2.87 and 1.56, respectively) , dry matter accumulation in leaves (13.44 and 14.43 g plant-1, respectively), dry matter accumulation in stem (26.25 and 29.31 g plant-1 , respectively), dry matter accumulation in panicles ( 37.21 and 41.38 g plant-1 , respectively), total dry matter accumulation in plant (73.82 and 85.12 g plant-1, respectively), thousand grain weight (18.17 and 18.71,g respectively), grain yield (4906 and 5192 kg ha-1 , respectively), straw yield (6247 and 6508 kg ha-1, respectively), gross returns (Rs. 87,733 and 92779 ha-1, respectively), net returns (Rs. 46329 and 50007 ha-1) and benefit cost ratio (2.14 and 2.20 ). Puddling with rotovator fb levelling with spike tooth harrow and 30 x 21 cm spacing were found better for transplanting of rice by self propelled mechanical transplanter. Land preparation would be helpful as one of the important pre requirement in machine transplanting of rice, which in turn will decide the time (time required for settling of soil particle) and type of machine to be used for transplanting of rice.

scholarly journals Weed dynamics and yield of direct seeded upland autumn rice (oryza sativa l.) Varieties as influenced by integrated weed and nutrient management practices

2018 ◽  
Author(s):  
G Goswami ◽  
N C. Deka ◽  
N J Ojha
Keyword(s):  
Oryza Sativa ◽  
Management Practices ◽  
Nutrient Management ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
Rice Varieties ◽  
Randomized Block Design ◽  
Direct Seeded ◽  
Weed Dynamics

A field experiment was conducted during autumn, 2014 at ICR Farm, Assam Agricultural University, Jorhat, Assam to compare three different direct seeded upland rice varieties along with different integrated weed and nutrient management practices. The experiment was carried out in factorial randomized block design replicated thrice with 15 treatments involving 3 varieties: Inglongkiri, Maizubiron and Rasi along with 5 treatments of weed and nutrient management,

Effect of Nova Aminochelated-zinc on Growth and Yield of Rice (Oryza Sativa L.)

2019 ◽  
pp. 1-6
Author(s):  
P. Venkata Narayana ◽  
Y. Sambasiva Rao ◽  
A. Kiran Kumar ◽  
Y. Sreekanth ◽  
N. Basanth
Keyword(s):  
Oryza Sativa ◽  
Field Experiment ◽  
Yield Components ◽  
Oryza Sativa L ◽  
Block Design ◽  
Growth Yield ◽  
Growth And Yield ◽  
Maximum Height ◽  
Randomized Block Design ◽  
Yield And Yield Components

A field experiment was conducted during the kharif, 2018 to study the effect of Nova Aminochelated-Zinc on growth, yield and yield components of rice. The experiment was laid out in Randomized Block Design with six treatments T1: Control, T2: Recommended Dose of Fertilizers (RDF) without Zinc, T3: T2+5 ml l-1 Nova Ami-Zinc @TI and PI, T4:T2+2.5 gm l-1 ZnSO4 @TI and PI, T5: 5 ml l-1 Nova Ami-Zinc @TI and PI, T6: 2.5 gm l-1 ZnSO4 @TI and PI. Experiment revealed that application of RDF+5ml l-1 Nova Ami-Zinc @ TI and PI (T3) resulted in maximum Number of tillers m-2, Total number of Grains Panicle-1, Number of Filled Grains Panicle-1, Test weight and Grain Yield but application of RDF+2.5 gm l-1 ZnSO4 @TI and PI showed maximum height followed by application of RDF +5 ml l-1 Nova Ami-Zinc @ TI and PI.

scholarly journals Bioherbicidal Properties of Parthenium hysterophorus, Cleome rutidosperma and Borreria alata Extracts on Selected Crop and Weed Species

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 643
Author(s):  
Mst. Motmainna ◽  
Abdul Shukor Juraimi ◽  
Md. Kamal Uddin ◽  
Norhayu Binti Asib ◽  
A. K. M. Mominul Islam ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Plant Extracts ◽  
Oryza Sativa L ◽  
Block Design ◽  
Parthenium Hysterophorus ◽  
Weedy Rice ◽  
Test Plant ◽  
Ageratum Conyzoides ◽  
Natural Herbicide ◽  
Cleome Rutidosperma

Natural product-based herbicides could be the effective alternatives to synthetic chemical herbicides for eco-friendly weed management. This research, therefore, was conducted to identify the phytotoxic properties of Parthenium hysterophorus L., Cleome rutidosperma DC. and Borreria alata (Aubl.) DC. with a view to introducing them as a tool for natural herbicide development. The methanol extracts of these plants were examined on the germination and growth of Zea mays L., Oryza sativa L., Abelmoschus esculentus (L.) Moench and Amaranthus gangeticus L., Oryza sativa f. Spontanea Roshev. (Weedy rice), Echinochloa colona (L.) Link., Euphorbia hirta L., and Ageratum conyzoides L. under laboratory and glasshouse conditions. A complete randomized design (CRD) with five replications and randomized complete block design (RCBD) with four replications were laid out for laboratory and glasshouse experiments, respectively. In the laboratory experiment, three plant extracts of 0, 6.25, 12.5, 50, and 100 g L−1 were tested on survival rate, hypocotyl, and radicle length of eight test plant species. No seed germination of A. conzyoides, E. hirta, and A. gangeticus were recorded when P. hysterophorus extract was applied at 50 g L−1. C. rutidosperma had the same effect on those plants at 100 g L−1. In the glasshouse, similar extracts and concentrations used in the laboratory experiments were sprayed on at the 2–3 leaf stage for grasses and 4–6 for the broadleaf species. Tested plants were less sensitive to C. rutidosperma and B. alata compared to P. hysterophorus extract. Among the weeds and crops, A. conyzoides, E. hirta, A. esculentus and A. gangeticus were mostly inhibited by P. hysterophorus extract at 100 g L−1. Based on these results, P. hysterophorus was the most phytotoxic among the tested plant extracts and could be used for developing a new natural herbicide for green agriculture.

scholarly journals Organic Fertilizer Titonia Plus and Micro Nutrients Improved Rice (Oryza sativa L.) Production in Koto Panjang and Koto Tingga, Padang City, West Sumatera, Indonesia

2020 ◽  
Vol 7 (01) ◽  
pp. 22-27
Author(s):  
Nalwida Rozen ◽  
Gusnidar Gusnidar ◽  
Nurhajati Hakim
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Block Design ◽  
Organic Fertilizer ◽  
Chemical Fertilizer ◽  
Rice Grain ◽  
Randomized Block Design ◽  
On Farm

A series of on-farm fi eld experiments were conducted in two locations in Padang, Koto Panjang and Koto Tingga, West Sumatera, Indonesia in 2015. The purpose of the experiment was to establish the formula of organic fertilizer derived from Tithonia supplied with micro nutrients, Zn and Mn, on rice. The experiments were conducted using completely-randomized block design with six treatments and three replications. The treatments were P = Tithonia Organic Fertilizer Plus (TOFP) + 3.0 kg Mn.ha-1, Q = TOFP + 3.0 kg Mn.ha-1+ 3.0 kg Zn.ha-1, R = TOFP + 4.5 kg Mn.ha-1 + 6 kg Zn.ha-1, S= TOFP + 4.5 kg Mn.ha-1+ 9 kg Zn.ha-1, T = TOFP only, U = 100% chemical fertilizer only. Treatment with micro nutrients as addition to TOFP (TOFP+ 3.0 kg Mn.ha-1 and TOFP+ 3.0 kg Mn.ha-1+3.0 kg Zn.ha-1) increased rice grain yield by 80 g per clump.

scholarly journals CHARACTERIZATION AND EVALUATION OF APPEARANCE RICE (Oryza sativa L.) LOCAL EAST TIMOR AND RICE INDONESIA

2018 ◽  
Vol 6 (2) ◽  
pp. 120-129
Author(s):  
Abilio Tilman Baptista ◽  
Damanhuri ◽  
Nunun Barunawati
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Block Design ◽  
East Timor ◽  
Consumption Pattern ◽  
Flowering Date ◽  
Rate Of Increase ◽  
Timor Leste ◽  
Rice Genotypes ◽  
Time Of Harvest

Rice is an important commodity for the majority of the population, especially in the continent of Asia use rice as a staple food. The state of Indonesia and East Timor, rice as the main food source that needs continue to increase because in addition to the population continues to grow at a rate of increase of about 2% per year, as well as the change in consumption pattern of the population of non-rice to the rice. Interest characterization and evaluation of the appearance of rice(Oryza Sativa L.) locally Timor Leste and Indonesian rice are getting Local rice genotypes Timorese suitable for cultivated in paddy fields. This research using a randomized block design (RBD) consisted of 9 treatments and 3 replications. The materials used are high-yielding rice varieties namely IR-3 64, Ciherang, Cimelati and 6 local rice genotypes Timor Leste, namely Hare Foam, Fafulu Hare, Hare Bauk Morin, Mean Hare, Hare and Hare Modok Fulan. Results showed that the highest plant length at the age of 10 MST contained in the local rice Hare Bauk Morin(134.67 cm), Number of tillers(40.30) the number of leaves(4.64).Flowering date and time of harvest shortest genotypes present in Morin namely Hare Bauk flowering date (39 days) and time of harvest (105 days). The highest number of panicles contained in Hare Mean genotype, high-yielding varieties IR64, Ciherang and Cimelati. The length of the longest panicle genotypes present in Foam Hare, Hare Hare Fafulu, and Fulan. The number of filled grains per panicle most contained in superior varieties IR64, Ciherang and Cimelati. The highest weight of 1000 grains contained in Cimelati varieties (vu3) with Hare Bauk Morin, IR64 and Cherang varieties. The highest rice yield for local rice genotypes present in Hare Bauk Morin (G3) of 9.79 ton.Ha-1 while yielding varieties there exist varieties Cherang (vu2) of 9.74 ton.Ha-1.

scholarly journals Bio-efficacy of pre and post-emergence herbicides for control of complex weed flora in transplanted rice (Oryza sativa L.)

2020 ◽  
Vol 8 (2) ◽  
pp. 2348-2351
Author(s):  
Raghubar Sahu ◽  
Dharmendra Kumar ◽  
Jubuli Sahu ◽  
Kumari Sharda ◽  
RK Sohane
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Transplanted Rice ◽  
Weed Flora
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