scholarly journals Effect of seaweed extract on rice (Oryza sativa var. ADT53) productivity and soil fertility in Cauvery delta zone of Tamil Nadu, India

2021 ◽  
Vol 13 (3) ◽  
pp. 1111-1120
Author(s):  
P. Deepana ◽  
K. Sathiya Bama ◽  
P. Santhy ◽  
T. Sivasankari Devi
Keyword(s):  
Oryza Sativa ◽  
Soil Fertility ◽  
Tamil Nadu ◽  
Foliar Spray ◽  
Crop Productivity ◽  
Seaweed Extract ◽  
Higher Plant ◽  
Yield Attributes ◽  
Soil Application ◽  
Cauvery Delta

The monocropping of rice in the Deltaic zone deteriorates soil health and crop productivity. Seaweeds are marine resources easily available at negligible cost and also rich in bioactive compounds. A field experiment was conducted at Cauvery Delta zone of Tamil Nadu during summer season2021 to evaluate the bio-efficacy of Seaweed extract on growth, yield, and soil properties of rice, Oryza sativa var. ADT53. The experiment was framed in RBD comprising of 12 treatments viz., soil application of Seaweed extract(SWE) @ 12.5kg/ha,25kg/ha, 37.5kg/ha , foliar spraying of SWE gel & liquid @ 0.5% twice at tillering and panicle initiation stages, a combination of soil application and foliar spray and fertilizer alone. Experimental findings revealed that the soil application of SWE  @ 12.5kg/ha along with a foliar spray of seaweed liquid recorded higher plant height (121.1cm),dry matter production (11390kg/ha),yield attributes viz., number of grains per panicle (166), panicle length (21.8 cm), thousand grain weight (14.7g), number of productive tillers per m2 (275), grain yield (5612 kg/ha)and straw yield (7829 kg/ha). However, The soil application of SWE @ 25kg/ha recorded higher soil available nutrients viz.,N(260 kg/ha);P(42kg/ha); K(170kg/ha);Ca(27.7meq/100g); Mg(5.5meq/100g);S(18.2mg/kg);Zn (1.17ppm); Fe (33.82ppm); Cu(1.61ppm);Mn(18.97ppm).The study will help sustain rice productivity and soil fertility in the deltaic zone of Tamil Nadu. The soil application of seaweed extract @ 12.5kg/ha along with foliar spraying (0.5% twice) could be a promising option in the rice ecosystem.

Evolving appropriate zinc fertilization strategy for rice-rice (Oryza sativa) cropping system in Cauvery Delta Zone

2019 ◽  
Vol 56 (3) ◽  
pp. 294-304
Author(s):  
C Sharmila Rahale
Keyword(s):  
Oryza Sativa ◽  
Tamil Nadu ◽  
Field Experiments ◽  
Foliar Spray ◽  
Cropping System ◽  
Green Leaf ◽  
Farm Yard Manure ◽  
Zinc Fertilization ◽  
Initiation Stage ◽  
Cauvery Delta

Six field experiments were conducted at Tamil Nadu Rice Research Institute, Aduthurai to evolve suitable zinc fertilization method for rice - rice (Oryza sativa L.) cropping system in Cauvery delta zone. The treatment includes: T1 : Control, T2 : 100 g zinc sulphate (ZnSO4)/cent in nursery alone., T3 : root dipping alone in 2 % zinc oxide (ZnO) solution, T4 : 25 kg ZnSO4 ha-1, T5 : 37.5 kg ZnSO4 ha-1, T6 : 25 kg ZnSO4 ha-1+ Farm Yard Manure (FYM) 12.5 t ha-1, T7 : 25 kg ZnSO4 ha-1 + Green Leaf Manure (GLM) 6.5 t ha-1, T8 : Tamil Nadu Agricultural University Micro Nutrient (TNAU MN) mixture 25 kg ha-1 as Enriched Farm Yard Manure (EFYM), T9 : TNAU MN mixture 37.5 kg ha-1 as EFYM, T10 : Foliar spray of 0.5% ZnSO4 + 1 % urea at tillering and panicle initiation stage, T11 : 100g ZnSO4 /cent in nursery alone + Foliar spray of 0.5 % ZnSO4 + 1 % urea at tillering and panicle initiation stage (T2+ T10), T12 : root dipping alone in 2 % ZnO solution + Foliar spray of 0.5 % ZnSO4 + 1 % urea at tillering and panicle initiation stage (T3 + T10), T13: 100 g ZnSO4 /cent in nursery alone + root dipping alone in 2 % ZnO solution + Foliar spray of 0.5 % ZnSO4 + 1 % urea at tillering and panicle initiation stage (T2 + T3 + T10). The treatments T5, T6, T7 and T9 were skipped in rabi season to know the residual effect of these treatments in the subsequent season. Among the treatment combinations, application of 25 kg ZnSO4 ha-1 + FYM 12.5 t ha-1 recorded higher grain yield in both kharif (6232 kg ha-1) and rabi (6236 kg ha-1) seasons. The same treatment combination recorded higher Zn content and Zn uptake as well. Regarding soil nutrient content, the same treatment recorded higher N, P and K content. This treatment was followed by application of 25 kg ZnSO4 ha-1 + green leaf manure 6.5 t ha-1. The experimental findings suggested that combination of organic and inorganic sources not only increased the yield but also improves soil health in Cauvery delta zone.

scholarly journals Influence of In-situ Soil Moisture Conservation Practices with Pusa Hydrogel on Physiological Parameters of Rainfed Cotton

2020 ◽  
Vol 11 (6) ◽  
pp. 548-557
Author(s):  
A. Mohammed Ashraf ◽  
◽  
Ragavan, T. ◽  
Naziya Begam, S. ◽  
◽  
...  
Keyword(s):  
Stress Management ◽  
Tamil Nadu ◽  
Management Practices ◽  
Foliar Spray ◽  
Crop Growth ◽  
Growth Indices ◽  
Yield Attributes ◽  
Soil Application ◽  
The Impact

The present study was undertaken to evaluate the impact of in-situ moisture conservation and stress management practices on crop growth indices and productivity of cotton under rainfed vertisol. The experiments were laid out at Regional Research Station, Aruppukottai, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu during rabi season (October-December) of 2016 and 2017 in split-plot design replicated thrice using cotton variety SVPR-2. The main plot treatments consisted of different in-situ moisture conservation measures viz., Broad Bed and Furrows (I1), Ridges and Furrows (I2) and Compartmental Bunding (I3). The subplot comprises with stress management practices viz., Soil application of pusa hydrogel @ 5 kg ha-1 (S1) with different foliar spray of 1% KCl (S2), 5% Kaolin (S3), PPFM @ 500 ml ha-1 (S4), Salicylic acid 100 ppm (S5) and Control (S6). The results revealed that treatment combination of broad bed and furrow and soil application of Pusa hydrogel @ 5 kg ha-1+foliar spray of PPFM @ 500 ml ha-1 had recorded significantly higher crop growth indices like CGR, RGR, NAR, reduced proline content, higher values of relative leaf water content, chlorophyll SPAD values, yield attributes viz., sympodial branches plant-1, number of bolls plant-1, boll weight and seed cotton yield (1,786 kg ha-1).

scholarly journals Effect of biostimulants on the yield of bush bean (Lablab purpureus var. typicus)

2021 ◽  
pp. 66-70
Author(s):  
V.M. PRIYADARSHINI
Keyword(s):  
Tamil Nadu ◽  
Block Design ◽  
Foliar Spray ◽  
Seaweed Extract ◽  
Net Income ◽  
Lablab Purpureus ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Bush Bean ◽  
Pod Length

A field experiment was conducted assess the influences of biostimuants on the yield of bush bean cv. Co (Gb) 14 at Poothurai village, Tamil Nadu during kharif season of 2019 in randomized block design with nine treatments and three replications. Biostimulants adopted for the study were seaweed extract, panchagavya, chitosan and effective microorganism with two different concentrations applied as foliar spray on 30, 45 and 60 days after sowing.Results revealed that the maximum values of yield parameters viz., length of the raceme(51.2 cm), number of racemes plant-1(8.5), number of flowers raceme-1 (26.4), number of flowers (221.5), days to 50 % flowering (36.6 days), number of pods plant-1(41.6), pod length (10.6 cm), pod width (3.2 cm), single pod weight (4.6 g), number of seeds (5.2), total pod yield (12.6 t/ha), net income (Rs. 1,71,628 ha-1) and B:C ratio (3.14)were recorded under the treatment of seaweed extract (5mL-1) + RDF. The RDF + 3% panchagavya proved next best treatment in respect of these parameters. Among all the biostimulants, seaweed proved superior to others in respect of flowering and yield attributes. The minimum values of all these characters were recorded under control

scholarly journals Effect of integrated nitrogen management through organic and inorganic sources on the yield of rice (Oryza sativa L.) and status of soil fertility at harvest

2020 ◽  
Vol 12 (4) ◽  
pp. 721-727
Author(s):  
Harish Shenoy ◽  
Siddaraju M. N.
Keyword(s):  
Oryza Sativa ◽  
Soil Fertility ◽  
Oryza Sativa L ◽  
Block Design ◽  
Poultry Manure ◽  
Nitrogen Management ◽  
Recommended Dose ◽  
Higher Plant ◽  
Available Nitrogen ◽  
Integrated Nitrogen Management

The present investigation was conducted with the objective of utilizing locally available organic resources for substituting chemical fertilizer nitrogen partly and augmenting soil health.  The experiment was carried out for the crop kharif rice (Oryza sativa L.) in coastal Karnataka with eleven treatments laid out in randomized block design with three replications. Vermicompost (VC), Poultry manure (PM) and Fish manure (FM) were used as organic nitrogen sources integrated with mineral nitrogen source of fertilizer urea at substitution ratios of  25, 50 and 100 percent. These treatments were compared with control and recommended dose of nitrogen. The results revealed that the substitution of 50 per cent of nitrogen through VC  recorded significantly (P<0.05) higher plant height  (92.27 cm), higher number of productive tillers (16.85 hill-1), higher grain yield (5434 kg ha-1) and straw yield ( 6817 kg ha-1) compared to control. The results of the soil sample analysis for soil fertility parameters indicated that the major nutrients were significantly (P<0.05) influenced by integrated nitrogen management.  The available nitrogen (382.36 kg ha-1) and available potassium (143.7 kg ha-1) were significantly (P<0.05) higher in the treatment T4 where a recommended dose of nitrogen was substituted by 50 percent VC compared to control (294.05 kg ha-1 and 92.31 kg ha-1 respectively). However, the available soil phosphorus was significantly higher with treatment 50 per cent  RDN substituted by PM  (78.83 kg ha-1) as compared to control (43.93 kg  ha-1).  Thus, integrated resource management improved crop yield and post-harvest soil fertility.

scholarly journals Standardization of organic protocols for growth and seed yield of multiplier onion (Allium cepa var. aggregatum) cv. Co (On 5)

2020 ◽  
Vol 15 (4) ◽  
pp. 374-381
Author(s):  
K. Sundharaiya ◽  
S. Nagarai ◽  
G. Sathish
Keyword(s):  
Plant Growth ◽  
Allium Cepa ◽  
Seed Yield ◽  
Seaweed Extract ◽  
Research Station ◽  
Higher Plant ◽  
Organic Manures ◽  
Soil Application ◽  
Multiplier Onion ◽  
Bulb Yield

Afield experiment on Effect of organic manures and biostimulants on growth and seed yield of multiplier onion (Allium cepa var. aggregatum) cv. Co (On 5) was conducted at Agricultural Research Station, Vaigaidam. The experiment was laid out in a Factorial Randomized Block Design with two factors viz., organic manures and biostimulants which includes M1- Control, M2- FYM (12.5 t ha-1), M3- Neem cake (2 t ha-1) and M4- Vermicompost (2 t ha-1) and S1- Control (water spray), S2- Humic acid (0.2 %), S3- Panchagavya (2%), S4- Vermiwash (2%) and S5- Seaweed extract (2%). Totally twenty treatments and were replicated thrice. The results revealed that soil application of FYM @ 12.5 t ha-1 recorded higher plant growth bulb yield and seed yield when compared to other organic manures of the present study. Similarly among the bio stimulants 2 per cent seaweed extract spray recorded higher plant growth, bulb yield and seed yield when compared to other bio stimulants of the present study. Interaction effect also showed that soil application of FYM @ 12.5 t ha-1 and foliar application of seaweed extract excelled and recoded the maximum plant growth, bulb yield and seed yield in multiplier onion.

scholarly journals Addition of low-grade phosphate rock for improvement of soil fertility on plant models: A preliminary case study

2017 ◽  
Vol 5 (3) ◽  
pp. 359-365 ◽  
Author(s):  
Rojali Maharana ◽  
Aradhana Basu ◽  
Nabin Kumar Dhal
Keyword(s):  
Plant Growth ◽  
Soil Fertility ◽  
Phosphate Rock ◽  
Crop Productivity ◽  
Waste Utilization ◽  
Low Grade ◽  
Higher Plant ◽  
External Application ◽  
Use Efficiency ◽  
Normal Soil

To sustain food production in the course of time and for efficient utilization of available resources, it is essential to approach improved methodologies and techniques for enhancing crop productivity. Commercial agricultural production has achieved this through the external application of synthetic inorganic fertilizers which has some detrimental effects on the soil structure, composition, microflora and additional characteristic properties of soil. The mining and industrial waste is an unwanted by-product of mining. Reusing and recycling of these wastes is possible therefore recovery and recycling is the most excellent environmental resolution to save raw resources and to diminish the number of industrialized waste materials produced, and also control the contamination of the environment. In the present study, an attempt has been made to utilize low-grade phosphate rock as a fertilizer and its effects on soil fertility. The raw phosphate rock samples are subjected to physicochemical test followed by elemental analysis by EDXRF (Energy Dispersive X-ray Fluorescence). The tests confirmed that it is possible to use this raw phosphate rock as fertilizer for plant growth in a simple process. Different soil and plant parameters were measured. Data on pot experiment revealed higher plant growth is in PR amended soil than normal soil. The greatest positive effect on growth was recorded in the treatments that received phosphate rock (8g) per kg of soil. Thus, observations indicated that direct application of this PR could be an alternative, promising technology for simultaneous waste minimization, waste utilization, and improved resource-use efficiency.

scholarly journals Response of growth, yield and quality of small onion (Allium cepa L. var. aggregatum don.) to Tamil Nadu Agricultural University-Water Soluble Fertilizers (TNAU-WSF)

2021 ◽  
Vol 13 (4) ◽  
pp. 1350-1356
Author(s):  
C. Vairavan ◽  
S. Thiyageshwari ◽  
P. Malarvizhi ◽  
T. Saraswathi
Keyword(s):  
Acid Content ◽  
Tamil Nadu ◽  
Block Design ◽  
Foliar Spray ◽  
Crop Productivity ◽  
Water Soluble ◽  
Soluble Solids ◽  
Soil Test ◽  
World Population

Enhancing the food production for the growing world population has needed application of highly sustainable and efficient inputs to produce more food per unit of land. Hence, Tamil Nadu Agricultural University (TNAU), Coimbatore, Tamil Nadu has produced Water soluble fertilizers (WSF) in its maiden attempt and it is necessary to optimize on different crops. Small onion is one of the most important vegetables in the Indian diet and it has high demand but low productivity. To enhance crop productivity and quality of small onions, the application of TNAU-WSF was taken up. A field experiment was laid out in a Randomized block design (RBD) incorporating 8 treatments comprising of application of RDF at100% NPK as TNAU WSF, soil test based application of 75%, 100%, 125% NPK ha-1 as TNAU-WSF with soil application of sulphur (S) and foliar spray of TNAU Liquid multi micronutrient (LMM) and without S and TNAU LMM and absolute control. Each treatment was replicated thrice with onion (CO 4). Soil test based application of 125% NPK ha-1 as TNAU-WSF with sulphur (S) and TNAU LMM recorded significantly higher in plant height (54.01 cm), the number of leaves per bulb (8.56), leaf greenness (67.5 SPAD), root length (5.42 cm), polar bulb diameter (4.38 cm), equatorial bulb diameter (2.72 cm) fresh bulb weight (74.21 g), bulb yield (1751 t ha-1) and quality attributes like total soluble solids (TSS) (14.78 °Brix), ascorbic acid content (15.34 mg 100 g-1), pyruvic acid content (2.27 µmol g-1). However, soil test based application of 100% NPK ha-1 as TNAU-WSF was found to be an ideal rate to attain the economic target yield of the onion crop.

Organic Cultivation of Summer Groundnut using Cow-based Bio-enhancers and Botanicals

2020 ◽  
Author(s):  
R.K. Mathukia ◽  
S.K. Chhodavadia ◽  
L.C. Vekaria ◽  
M.S. Vasava
Keyword(s):  
Organic Farming ◽  
Fruits And Vegetables ◽  
Block Design ◽  
Kappaphycus Alvarezii ◽  
Scientific Information ◽  
Foliar Spray ◽  
Seaweed Extract ◽  
Growth And Yield ◽  
Yield Attributes ◽  
Organic Cultivation

Background: Recognizing the adverse impact of excessive use of chemicals on soil health, human health and environment, Government is promoting production of organic crops, fruits and vegetables etc. through various schemes. Demand for organic food items is also on the rise during the last few years. Number of cow-based bio-enhancers and botanicals have been developed by innovative organic growers/ associations and NGOs. But very meagre scientific information is available regarding such formulations. Hence, to incorporate these products in organic farming module, the present experiment was conducted.Methods: A field experiment was conducted in summer season of 2017 to 2019 at Junagadh, Gujarat, India with cow-based bio-enhancers (Panchagavya, Bijamrut, Jivamrut, Amrutpani, Sanjivak and cow urine) and botanicals (Seaweed extract and Banana pseudo stem sap) in randomized block design with three replications. The cow-based formulations were prepared on farm as per the procedure given by National Centre for Organic Farming, Ghaziabad and botanicals viz., banana pseudo stem extract and seaweed extract (Kappaphycus alvarezii) were obtained from Navsari Agricultural University, Navsari and Junagadh Agricultural University, Okha.Result: The results revealed that application of FYM @ 5 t/ha significantly enhanced growth and yield attributes viz., plant height, number of branches/plant, number and dry weight of nodules/plant, number of mature pods/plant, pod weight/plant and shelling percentage and ultimately produced significantly higher pod (1823 kg/ha) and haulm (3270 kg/ha) yields, followed by Panchagavya as foliar spray @ 3% at 30, 45 and 60 DAS (1582 and 2846 kg/ha) and seaweed extract as foliar spray @ 3.5% at 30, 45 and 60 DAS (1423 and 2570 kg/ha). Application of FYM, Panchagavya and seaweed extract also increased uptake of NPK by pod and haulm over the control, while different treatments failed to affect the post-harvest soil fertility except available P which is higher under FYM, Jivamrut, Amrutpani and Sanjivak over the control. Overall, application of FYM and Panchagavya accrued higher net return of `55285 and 46229/ha with B:C of 2.21 and 2.12, respectively.

Influence of Soil Application of Organic Manures and Foliar Spray of Liquid Biofertilizers on Growth and Seed Yield of Kabuli Chickpea (Cicer arietinum L.) Varieties

2019 ◽  
Author(s):  
Pavan Shinde ◽  
Ravi Hunje
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Foliar Application ◽  
Foliar Spray ◽  
Yield Attributes ◽  
Organic Manures ◽  
Soil Application ◽  
Cicer Arietinum L ◽  
Cow Urine ◽  
Plot Design

The field experiment was carried out at WALMI Farm, University of Agricultural Sciences, Dharwad during 2015-16 and 2016-17 on organically maintained field to study the influence of soil application of organic manures and foliar spray of liquid biofertilizers on growth and seed yield of kabuli chickpea varieties. The experiment was laid in split plot design with three replications constituting two kabuli chickpea varieties and seven fertilizer treatments. The results revealed that, kabuli chickpea variety BG1105 (V1) recorded significantly higher values for seed yield and its yield attributes compared to MNK-1 (V2) while, application of 100 % organics equivalent to RDP (50 % FYM and 50 % vermicompost) in combination with either of foliar application with Panchagavya @ 3 % or Biodigester @ 10 % or cow urine spray @ 10 % at flowering and 15 days after flowering can be used for obtaining higher seed yield in Kabuli chickpea varieties.

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