scholarly journals Study of different rice establishment methods on growth and yield of different varieties

2018 ◽  
Vol 33 (4) ◽  
Author(s):  
Bheru Lal Kumhar ◽  
Viresh Govind Chavan ◽  
Kamal Kant Agrawal ◽  
Amit Kumar Jha ◽  
Vijay Kumar
Keyword(s):  
Growth Yield ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Clay Loam ◽  
College Of Agriculture ◽  
Available Nitrogen ◽  
Monetary Economic ◽  
Sandy Clay Loam ◽  
Plot Design

A field experiment was conducted in spit plot design with three replication to “to study different rice establishment methods on growth, yield and different varieties” was conducted at Agronomy farm, College of Agriculture, Dapoli, Distt. Ratnagiri (M.S.) during kharif season of 2014 on was sandy clay loam in texture, moderately acidic in pH (5.63), medium in organic carbon content (0.82 %), electrical conductivity (Ec) 0.035 dSm-1 , medium in available nitrogen (284.82 kg/ha), low in available phosphorus (14.63 kg/ha) and high in available potassium (248.45 kg/ha). The highest plant height (71.09 cm), effective tillers (360.58 m2), length of panicle (21.07 cm), test weight (22.24 g), straw yield (47.42 q ha-1), weight of per panicle (2.15 g), number of filled grains per panicle (97.08) and B:C ratio (1:2.23) were recorded in line transplanting technique. Based on the results obtained, it can be concluded that in areas where labour is available and cheap, transplanting as per as recommended (21 days old age seedling) is a better establishment methods of rice because it produces more yield and gross monetary economic return than other methods.

Effect of irrigation regimes, mid-season drainage and time of application of nitrogen on growth and yield of hybrid rice

2004 ◽  
Vol 52 (1) ◽  
pp. 45-51
Author(s):  
M. Jayakumar ◽  
S. Khrisnasamy ◽  
N. Thavaprakash
Keyword(s):  
Field Experiments ◽  
Hybrid Rice ◽  
Growth Yield ◽  
Growth And Yield ◽  
Clay Loam ◽  
Yield Attributes ◽  
Time Of Application ◽  
Agricultural College ◽  
Main Plot ◽  
Plot Design

Field experiments were conducted at the Central Farm of the Agricultural College and Research Institute, Madurai, India during the rabi (October-January) seasons of 1999-2000 and 2000-2001 in a split plot design with three replications. The soil of the experiments was sandy clay loam with a neutral reaction. The main plot consisted of six irrigation schedules with mid-season drainage, while four N splits were taken as sub- plots. The experimental results revealed that irrigation to a depth of 5 cm one day after the disappearance of ponded water and mid-season drainage, along with N applied in four splits, with 16.7% at 10 days after transplanting, 33.3% at active tillering, 33.3% at panicle initiation and 16.7% at the heading stage, produced significantly higher growth, yield attributes, grain and straw yields in hybrid rice. A combination of the above treatments led to maximum grain yields of 7533 and 8078 kg ha-1 (45.53 and 45.86% in excess of the control) in 1999-2000 and 2000-2001, respectively.

Nitrogen accretion and other soil changes in Tindall clay loam under Townsville stylo/grass pastures

1976 ◽  
Vol 16 (78) ◽  
pp. 94 ◽  
Author(s):  
RJK Myers
Keyword(s):  
Organic Carbon ◽  
Available Phosphorus ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Available Nitrogen ◽  
Absolute Value ◽  
Stylosanthes Humilis ◽  
Loam Soil ◽  
Townsville Stylo ◽  
Soil Changes

Soil changes after 3-15 years of fertilized leguminous pastures on Tindall clay loam soil at Katherine, N.T. were studied by comparison of leguminous pasture soils with their native counterparts. Soil organic carbon, total nitrogen, C/N ratio and pH were unchanged by the presence of Townsville stylo (Stylosanthes humilis). Available phosphorus (bicarbonate extraction) was significantly higher under legume pasture, reflecting its fertilizer history, but there was no pattern of increase with time, nor with quantity of fertilizer. Available nitrogen (boiling water extraction) was higher under legume pasture, and both the absolute value under legume pasture and the change in amount were correlated significantly with the age of the pasture. Available nitrogen after three years of legume pasture was equal to that under unimproved pasture, suggesting that gains in this period merely balanced losses during clearing and establishment.

Productivity and soil moisture conservation studies of pigeon pea based intercropping systems as influenced by different land configurations

2019 ◽  
Author(s):  
H. S. Garud ◽  
B. V. Asewar ◽  
A. S. Dhawan ◽  
D. N. Gokhale ◽  
I. A. B. Mirza
Keyword(s):  
Soil Moisture ◽  
Seed Yield ◽  
Pigeon Pea ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Dry Land ◽  
Soil Moisture Conservation ◽  
Main Plot ◽  
Equivalent Yield ◽  
Plot Design

A field experiment was conducted to study effect of various land configurations on soil moisture conservation and productivity of pigeonpea at experimental farm of AICRP for dry land Agriculture, V.N.M.K.V., Parbhani during kharif season of 2015 and 2016. Soil of experimental field was medium deep black with low in organic carbon, low in available nitrogen, medium in available phosphorus and high in available potassium.The experiment was laid out in split plot design with three main plot treatments and four sub plot treatments. The gross and net plot sizes are 7.2x5.4m2 and 5.4x3.6m2 respectively. The pigeonpea variety BDN-711 was used for sowing with spacing 90 x 20 cm. The main plot treatments were three land configurations as (L1) broad bed furrow (BBF), (L2) ridges and furrow and (L3) flat bed method. Sub plot treatments were four intercropping systems i.e. (I1) pigeonpea + soybean (2:1), (I2) pigeonpea + green gram (2:1), (I3) pigeonpea + black gram (2:1) and (I4) pigeonpea + cowpea (2:1). It was observed that seed yield of pigeon pea andpigeonpea equivalent yield were significantly affected due to different land configuration and intercropping systems. The highest pigeonpea seed yield (1588 kg ha-1) and pigeonpea equivalent yield (1823 kg ha-1) were obtained with Broad bed furrows (L1) followed by ridges and furrow (L2). Among the intercropping systems, pigeonpea + greengram intercropping system (I2) recorded higher seed yield (1574 kg ha-1) and pigeonpea equivalent yield(1832 kg ha-1).Periodical soil moisture observations in different land configuration considering depth of soil, higher average soil moisture was recorded under broad bed furrow followed by ridges and furrows while lesser was recorded under flat bed sowing.

scholarly journals Characterization and Classification of Soils of Harve-1 Microwatershed of Chamarajanagar District, Karnataka, India

2020 ◽  
pp. 43-54
Author(s):  
Rajendra Hegde ◽  
M. B. Mahendra Kumar ◽  
K. V. Niranjana ◽  
K. V. Seema ◽  
B. A. Dhanorkar
Keyword(s):  
Soil Samples ◽  
Soil Survey ◽  
Soil Reaction ◽  
Soil Profiles ◽  
National Bureau ◽  
Organic Carbon Content ◽  
Clay Loam ◽  
Soil Series ◽  
Sandy Clay Loam ◽  
Sandy Clay

Aims: The detailed survey of the microwatershed was carried out by using digitized cadastral map as a base. The objective of the investigation was undertaken to characterize and classify the soils of Harve-1 microwatershed of Chamarajanagar district, Karnataka. Place and Duration of Study: soil survey was done and soil samples were collected from Harve-1 microwatershed of Chamarajanagar district in the year 2016. The laboratory characterization and soil classification work was done at National Bureau of soil survey and land use planning, Regional centre Hebbal, Bangalore, Karnataka. Methodology: Using Cartosat-1 and LISS-IV merged satellite data at the scale of 1:7920 were used in conjunction with the cadastral map as a base. Soil profiles were exposed and location of soil profiles was recorded using GPS and studied from each landform for describing morphological characteristic as per the guidelines given in USDA soil survey manual (Soil Survey Staff 2014). Based on the soil-site characteristics, ten soil series were identified using the method employed by Reddy (2006). Horizon wise soil samples were collected, processed and analysed for various properties by adopting standard procedure. Results: The study showed that, the soils were moderately shallow to moderately deep in depth. The colour of the soils varied from dark red to dark reddish brown. Texture of the soil varied from sandy loam to sandy clay loam in surface and sandy clay loam to sandy clay in subsurface. The structure was weak medium sub-angular blocky to moderate medium sub-angular blocky throughout the profile in all series. The consistency of majority of the soils were friable, slightly sticky and slightly plastic in surface and friable, moderately sticky and moderately plastic in subsurface. Soil reaction varied from slightly acidic to alkaline (5.70 to 8.18) in nature. Organic carbon content of the soils was low to high (0.20 to 1.24 per cent). Calcium and magnesium are dominant exchangeable cations followed by sodium and potassium. The CEC of the soils ranged from 3.17 to 25.76 cmol (p+) kg-1. Major proportion of soil series in the microwatershed belonged to the order of Alfisols (Paralitic Rhodustalfs, Typic Rhodustalfs, Typic Haplustalfs and Rhodic Paleustalfs) except Honnenahalli (HNH) series belong to the order of Inceptisols (Typic Haplustepts). Conclusion: The soils of the microwatershed were comes under the order of alfisols and inceptisols. This generated information can help the researchers, farmers and planners to manage the natural resources for future planning and also to achieve sustainable productivity.

scholarly journals Available nutrients status in black soils of Varanasi district of eastern part of Uttar Pradesh

2018 ◽  
Vol 10 (4) ◽  
pp. 1238-1242
Author(s):  
Ashish Rai ◽  
Surendra Singh
Keyword(s):  
Uttar Pradesh ◽  
Mean Value ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
High Status ◽  
Available Nitrogen ◽  
Available N ◽  
Mean Values ◽  
Fertility Status

Soil fertility status of the intensively vegetables growing in black soils of Varanasi (UP), India is not available. Therefore, present study was under-taken to assess the fertility status by collecting 100 surface (0-15 cm depth) soil samples using geographical positioning system (GPS). Soil samples were analysed following standard methods. The pH of the surface soils ranged from 7.3 to 8.4 with a mean of 7.9 indicating alkaline nature of soil. The EC of the soils were normal and ranged from 0.17 to 0.48 dS m-1 with mean value of 0.30 dS m-1. The organic carbon content of the soils ranged from 3 to 9 g kg-1 with a mean of 5.8 g kg-1. The range (mean) values of available N, P and K were 106 to 291 (184), 8 to 65 (27) and 145 to 358 (229) kg ha-1, respectively. The soils were found 99% low in available N content and nutrient index rating of available P was found high. The range (mean) values of B, Zn, Cu, Fe and Mn were, 0.11 to 0.53 (0.40), 0.38 to 3.04 (1.08), 0.22 to 1.96 (0.79), 2.9 to 16.40 (8.42) and 0.68 to 12.64 (3.24) mg kg-1 soil, respectively. The available sulphur of the soils ranged from 7 to 33 mg S kg-1 with mean of 15 mg S kg-1 soil. Soils were categorised in to low, medium and high status, subsequently 99 % soils were found low in available nitrogen whereas 63% soil samples were found medium in available phosphorus, and 88% were medium in available potash. 26, 48 and 26% soils were low, medium and high in S, respectively and the corresponding Figs. for B were 90, 10 and 0%. In case of cationic micronutrients, 7, 58 and 35% soils were low, medium and high in Zn and the corresponding Figs. for Available Mn were 30, 44 and 26%. Fe was found 6, 59 and 35% in low, medium and high category respectively. There was no copper deficiency found in black soils of Varanasi.

scholarly journals Effect of encapsulated herbicides on weed control, productivity and nutrient uptake of rice (Oryza sativa)

2021 ◽  
Vol 42 (2) ◽  
pp. 319-325
Author(s):  
N. Bommayasamy ◽  
◽  
C.R. Chinnamuthu ◽  
Keyword(s):  
Nutrient Uptake ◽  
Weed Control ◽  
Block Design ◽  
Water Soluble ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Clay Loam ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Hand Weeding

Aim: To study the effect of season-long weed management using encapsulated herbicides on weed control, productivity and nutrient uptake of rice. Methodology: Field experiment was carried out with oxadiargyl encapsulated / loaded in zeolite, biochar, starch, water soluble polymer. It was compared with commercial formulation of oxadiargyl, butachlor, weed free check and weedy check. The experiments were laid out in randomized complete block design and replicated thrice. The physico-chemical properties of the experimental sites was sandy clay loam to clay loam in texture with pH ranging from 6.9 to 7.3, low organic carbon content, low available nitrogen, medium available phosphorus and potassium. Results: The lowest weed density and weed dry matter production of 47.3, 28.0 m-2 and 96.2, 32.8 kg ha-1 was observed in 2016 and 2017 respectively with the application of oxadiargyl loaded with zeolite at 20 DAT. Application of butachlor at 1.25 kg ha-1 fb hand weeding on 40 DAT and application of oxadiargyl loaded with zeolite recorded 86.7, 76.9 and 81.3, 72.8 percent higher grain yield in 2016 and 2017, respectively, as compared to weedy check. Higher N, P, K uptake was observed with application of butachlor at 1.25 kg ha-1 fb hand weeding on 40 DAT, which was comparable with oxadiargyl loaded with zeolite and oxadiargyl loaded with biochar during both the year. Interpretation: It can be concluded that oxadiargyl loaded with zeolite was more efficient in controlling weeds coupled with maximum growth and productivity under the constrained situation of manual weeding. Key words: Biochar, Encapsulation, Herbicides, Rice, Water soluble polymer, Zeolite

scholarly journals RESPON VARIETAS WIJEN (Sesamum indicum L.) SECARA TUMPANGSARI DENGAN JARAK KEPYAR (Ricinus communis L.) TERHADAP PERTUMBUHAN DAN HASIL

2020 ◽  
Vol 14 (1) ◽  
pp. 7
Author(s):  
AMIK KRISMAWATI
Keyword(s):  
Ricinus Communis ◽  
Total Yield ◽  
Growth Yield ◽  
Sesame Seed ◽  
Sesamum Indicum ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Ricinus Communis L ◽  
Two Factors ◽  
Plot Design

ABSTRAK<br />Penelitian ini dilaksanakan di Kebun Percobaan Balai Penelitian<br />Tanaman Tembakau dan Serat, Karangploso, Malang, mulai bulan Mei<br />sampai dengan Oktober 2001. Penelitian bertujuan untuk memperoleh<br />varietas wijen yang sesuai pada sistem tumpangsari dengan tanaman jarak<br />kepyar. Rancangan percobaan yang digunakan adalah rancangan petak<br />berlajur dengan tiga ulangan. Perlakuan tumpangsari terdiri dari dua<br />faktor. Faktor pertama yaitu varietas tanaman jarak kepyar Asembagus<br />81 (Asb 81) dan Asembagus 104 (Asb 104). Faktor kedua yaitu<br />varietas wijen Sumberrejo 1 (Sbr 1) dan Sumberrejo 2 (Sbr 2). Pada<br />setiap ulangan juga ditanam varietas monokulturnya. Ukuran petak 6 m<br />x 6 m, jarak tanam untuk tanaman jarak kepyar 2 m x 2 m (satu<br />tanaman per lubang) dan varietas wijen 0,5 m x 0,25 m (satu tanaman<br />per lubang). Hasil penelitian menunjukkan bahwa tanaman wijen varietas<br />Sumberrejo 1 dengan tanaman jarak kepyar varietas Asembagus 104<br />memberikan hasil 632,55 gram biji wijen per petak dan 637,63 biji jarak<br />per petak. Parameter total hasil relatif (RYT) sistem tumpangsari wijen<br />dengan tanaman jarak kepyar lebih besar dari satu ( &gt; 1) yaitu antara 1,687<br />sampai dengan 1,787, sehingga sistem tumpangsari tersebut efisien dalam<br />memanfaatkan lahan.<br />Kata kunci : Wijen, Sesamum indicum L., jarak kepyar, Ricinus communis<br />L., tumpangsari, pertumbuhan, hasil, Jawa Timur<br />ABSTRACT<br />Response of sesamum variety as intercrops with castor on<br />their growth and yield<br />The experiment was conducted in the Experimental Garden of the<br />Indonesian Tobacco and Fibre Crops Research Institute in Malang, from<br />May to October 2001. The objective of the study was to find out the<br />variety of sesame which is suitable for intercropping with castor. A strip<br />plot design was used with three replications. The factorial treatment<br />consisted of two factors. The first factor was castor varieties (Asembagus<br />81 and Asembagus 104). The second factor was sesame varieties<br />(Sumberrejo 1 and Sumberrejo 2). In each replication, castor and sesame<br />varieties were planted as monocultures. The plot size was 6 m x 6 m,<br />castor and sesame plant spacing were 2 m x 2 m and 0,50 m x 0,25 m<br />respectively. The results showed that the intercropping of sesame<br />Sumbererjo 1 variety and castor Asembagus 104 variety produced 632,55<br />gram sesame seed per plot and 637,63 gram seed castor per plot. The<br />highest relative total yield on intercropping castor and sesame was<br />obtained by Asembagus 104 and Sumberrejo 1 at 1,787 and the lowest<br />relative total yield was obtained by Asembagus 104 and Sumberrejo 2 at<br />1,687. RYT value of the intercropping system was more than one which is<br />considered as efficient in land use.<br />Key words: Sesame, Sesamum indicum L., castor, Ricinus communis L.,<br />intercropping, growth, yield, East Java.

scholarly journals Distribution of Nutrients in Sundarbans Coastal Ecosystem- A Case study

Agropedology ◽  
2019 ◽  
Vol 27 (1) ◽  
Author(s):  
R. Srinivasan ◽  
◽  
D. C. Nayak ◽  
S. K. Singh ◽  
◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Nitrogen Content ◽  
Soil Management ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Available Nitrogen ◽  
Management Units ◽  
Very High

The distribution of nutrients were studied in six soil management units identified viz., Chandipur, Biprodaspur, Pathankhali, Manmathanagar-I, Manmathanagar-II and Bhupendranagar of Gosaba block (part) of sundarbans ecosystem. Data indicated that the soils were strongly acidic (< 4.5) to neutral in reaction and associated with marginal to severe salinity (> 13.3 dS m-1). The organic carbon content ranged from 0.67 to 1.66% in surface and 0.15 to 3.44% in sub-soils. The available nitrogen content varied from 90 to 502 kg ha-1 and it changed significantly with depth. The available phosphorus varied from 0.5 to 24.7 kg ha-1. Available potassium and sulphur in soils are very high, ranging from 178 to 572 kg ha-1 and 25 to 706 mg kg-1 respectively. DTPA -Fe and Mn varied from 18.9 to 336 and 2.17 to 37.6 mg kg-1 in soils being higher in sub-surface horizons, and DTPA- Zn and Cu ranged 0.27 to 4.73 and 0.63 to 14.5 mg kg-1 respectively.

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