Red Sandy Research Articles

Assessment of Physico-chemical Properties on Soil of Vizianagaram District, Andhra Pradesh, India

The study was conducted at Sam Higginbottom University of Agriculture Technology and Sciences’ Department of Soil Science and Agricultural Chemistry Lab. A total of 27 samples were collected from 3 blocks (Pusapatirega, Denkada and Bhogapuram), 9 villages, and analysed for physico-chemical properties using standard laboratory at varying depths (0-15, 15-30, and 30-45 cm). The soil colour ranged from yellowish red to yellowish brown (dry) and reddish brown to yellowish-brown (wet). It had a red sandy loam texture. Bulk density 1.402 (Mg m-3), Particle density 2.603(Mg m-3), Pore space 43.44(%), Water Holding Capacity 40.23(%), Specific gravity 2.42, pH 7.63 neutral, Electrical Conductivity 0.25 (dS m-1) non- saline, and Soil Organic Carbon 0.37(%). Available Nitrogen 269.88(kg ha-1) is low, Available Phosphorous and Available Potassium 17.34 and 191.09 (kg ha-1) are medium. Exchangeable Calcium 4.63 (cmol kg-1) and Exchangeable Magnesium 1.91 (cmol kg-1) medium to high. Farmers need to maintain a soil health card, adopt proper management techniques, and provide adequate nutrients to the soil in order to overcome pollution.

Survey for the Incidence of Stem Rot (Sclerotium rolfsii sacc) of Groundnut in Andhra Pradesh

Background: Groundnut is an important edible leguminous oilseed crop and stem rot caused by Sclerotium rolfsii is one of the major soil borne disease affecting groundnut severely in India. The current study aimed to get an understanding regarding the incidence level and pattern of prevalence of the disease in the agro-ecological condition of Andhra Pradesh. Methods: Roving survey was taken up from major groundnut growing areas in Andhra Pradesh during kharif, 2019 and kharif, 2020 in five districts. From each district predominant groundnut growing areas were chosen for assessment of the disease. Five spots of one square meter area in each field were selected randomly and Per cent disease incidence was recorded. Result: From the data it is observed that the stem and pod rot incidence was higher during kharif, 2020 when compared with kharif, 2019. The pooled data indicated that the mean stem rot incidence for the two years ranges from 5.39% to 23.56% with highest mean stem rot incidence in Krishnapuram (v), Kothapatnam (m) of Prakasam dist (23.56%) and lowest in Bandarupalli (v), Yerpedu (m) of Chittoor dist (5.39%). Among different districts highest mean stem rot incidence was recorded in Prakasam dist (18.71%) and lowest was recorded in Chittoor dist (7.11%). The stem rot severity was high in sandy soils with TAG24 variety where groundnut is being grown followed by red sandy loams and least in clay loam soils. The groundnut sole crop recorded high disease incidence when compared with intercrop of red gram. Siginificant positive correlation was recorded between stem rot, pod rot and leaf spot incidence.

Agronomic fortification in finger millet (Eleusine coracana) for yield and quality improvement in red sandy loam soils

A field experiment was conducted during kharif 2015–18 to study the yield responses of finger millet [Eleusine coracana (L.) Gaertn.] to graded doses of macronutrient fertilizers (100% and 150% RDF) in combination with soil and foliar application of Zn and Fe, which are important for early establishment of finger millet. The experimental results indicated that significantly higher grain and straw yields of finger millet were recorded with 150% RDF+ZnSO4 0.5% foliar spray+FeSO4 0.2% foliar spray compared to 100% RDF. Soil available N, P2O5, K2O and plant macronutrient uptake were also found highest in the same treatment. Whereas the highest available Zn in the soil was recorded in the treatment 150% RDF+ZnSO4 soil application+FeSO4 0.2% foliar spray, and the highest available Fe was evidenced in the treatment 150% RDF+FeSO4 0.2% foliar spray. The grain zinc content was found highest with the treatment 150% RDF+ZnSO4 0.5% foliar spray, iron content in the grain was found highest with the treatment 150% RDF+ZnSO4 0.5 % foliar spray + FeSO4 0.2% foliar spray. The uptake of Zn and Fe were found highest with the treatment 150% RDF+ZnSO4 0.5 % foliar spray+FeSO4 0.2 % foliar spray. Hence, the treatment with 150% RDF+ZnSO4 0.5% foliar spray + FeSO4 0.2% foliar spray was considered to be the best treatment which was at par with 150% RDF+ZnSO4 @50 kg/ha soil application+FeSO4 0.2% foliar spray.

Influence of Fermented Liquid Manure (Jeevamrutha) on Growth Parameters and Yield Attributes of Tomato (Solanum lycopersicum L.) crop

Chemical fertilizers and pesticides are used intensively in modern agriculture giving rise to insects which have become resistant to pesticides. It has also resulted in the revival of pests and declining number of beneficial organisms such as honey bees, pollinators, parasites, and predators and accumulation of residues of pesticides in food and fodder. To improve soil microflora, a farm-made bio-culture called ‘Jeevamrutha’ is added to the soil instead of fertilizers. Jeevamrutha is made from a small amount of indigenous cow dung and urine. In red sandy loam soil, an experiment was conducted to see how varying concentrations of jeevamrutha affected the growth parameters and yield attributes of tomato. In a factorial randomized complete block design, five treatments with different combinations were laid out with three replications. The experimental results revealed that applying jeevamrutha at a 50% concentration influenced growth parameters of the crops including height of plants, total number of leaves, leaf area index, root length, and shoot length significantly. The use of jeevamrutha at 100% was significant in increasing tomato fruit yield due to improvements in yield attributes such as total number of fruits per plant, weight, length, and diameter of fruits.

Formation mechanism of collapsing gully in southern China and the relationship with granite residual soil: A geotechnical perspective

Recently, there has been an increase in collapsing gullies in the south of China as one of the most destructive types of soil erosion. Most collapsing gullies are formed on a well-developed granite crust; thus, granite residual soil plays a critical role. However, the extent to which the geotechnical features of residual soil, especially soil disintegration, affects collapsing gully formation is poorly understood. This study performed laboratory disintegration tests on granite residual soil taken from the red soil, sandy soil, and detritus layers of a collapsing gully. The disintegration behaviour was quantified by defining the disintegration ratio, Rd, and three equivalent disintegration rates, vI, vII, and vIII, corresponding to Rd = 10%, 30%, and 50%, respectively. The results revealed that the red soil layer (depth < 1.3 m) and the soil at the shallower depth of the sandy soil layer (depth < 3.0 m) showed similar disintegration behaviours, which were complete (Rd = 100%) and rapid, with vI values in the range of 66.7–266.7%/min. The soil disintegration in the sandy soil layer was characterised by an incremental increase in Rd to 100% within 100 min. The residual soil at the bottom of the sandy soil layer and the top of the detritus layer (depths of 4.0–8.0 m) disintegrated consistently at the first, after which the disintegration rate gradually decreased with vIII lower than 1%/min. The detritus layer soil at a depth greater than 10.0 m showed incomplete disintegration, and the ultimate Rd was approximately 60%. The formation mechanism for the soil disintegration and gully collapse was also proposed. The weakening of cementation triggered the breakup of soil aggregates and led to soil disintegration and the occurrence of a gully collapse. This study provided new insights on gully erosion.

Influence of Farmyard Manure and Jeevamrutha on Growth and Yield of Sunflower

A field experiment was conducted during Kharif 2017 at ZARS, University of Agricultural Sciences, Bengaluru to study the influence of different levels of Farm Yard Manure (FYM) and Jeevamrutha on growth and yield of Sunflower in red sandy loam soil. There were nine treatment combinations laid out in factorial randomized complete block design, which were replicated thrice. The experimental results revealed that, the application of FYM at 150 per cent nitrogen equivalent and jeevamrutha at 1500 L ha-1significantly influenced growth parameters like plant height, number of leaves, leaf area, leaf area index and total dry matter production. The interaction effect of FYM and jeevamrutha was significant in enhancing the seed yield of sunflower due to improvement in yield attributes like head diameter, number of seeds per head, hundred seed weight and seed yield per plant.

Effect of Different Sulphur Sources on Sulphur Fractionation in a Red Sandy Loam Soil

Aim: The aim of the present study was to examine the different forms of sulphur fractions in post- harvest soil of cabbage crop to determine the S status of red sandy loam soil, Thondamuthur block, Coimbatore district.&#x0D; Study Design: The design used in the present study was Factorial randomized block design with 20 treatments replicated thrice.&#x0D; Place and Duration of Study: A field experiment was carried out in a farmer’s field of red sandy loam non-calcareous soil, deficient in sulphur which was located at Viraliyur village of Thondamuthur block, Coimbatore district during February to May 2021 of rabi season.&#x0D; Methodology: A field experiment was carried out in sandy loam sulphur deficient soil with cabbage as test crop fertilized with NPK along with different sulphur sources viz., elemental sulphur, potassium sulphate, gypsum and single super phosphate @ levels of 0, 20, 40, 60 and 80 kg ha-1 replicated thrice in a Factorial Randomized Block Design. S fractions of water-soluble S, inorganic S, organic S, available S and residual S were estimated in post-harvest soil.&#x0D; Results: The results revealed that the total sulphur differed from 278.1 to 339.4 mg kg-1. Among the sulphur fractions, inorganic S (39%) accounts highest proportion of total S followed by organic S (38.3%), water-soluble S (9.19%) and available S (4.12%). The order was, Inorganic S &gt; organic S &gt; sulphate S &gt; water soluble S.&#x0D; Conclusion: This study indicated that all the sulphur fractions are strongly associated with S sources, levels and properties of red sandy loam soil of Coimbatore district under cabbage cultivation.

Hydrogel application improved growth and yield in Senna (Cassia angustifolia Vahl.)

Water availability is one of the most important factors determining plant growth. In moisture-stressed situations, water-absorbing materials are an effective way to increase water retention capacity. In 2016–17, the CSIR-CIMAP Research Centre at Boduppal, Hyderabad, conducted field research on red sandy soil in the semi-arid environment of south India to see what effect different doses of hydrogel had on the growth, yield, and economics of senna, one of India's most export-oriented and economically important crops. The results show that applying 3000 g of hydrogel per hectare resulted in a significant increase in leaf and pod yield (2324.7 kg ha−1 and 675.7 kg ha−1, respectively) compared with the other treatment. It was comparable with the use of 2500 g of hydrogel (2216.8 kg ha−1and 643.4 kg ha−1, respectively). The control had a remarkably lower yield of leaf and pod (1611.6 kg ha−1 and 433.5 kg ha−1), respectively) then the 250 g hydrogel treatment (1730.8 kg ha−1 and 494.8 kg ha−1, respectively). When 3000 g of hydrogel is applied, water use efficiency and soil water holding capacity improves significantly (5.55 kg/ha mm, 50.12%, and 20.28%, respectively). A similar pattern was observed in terms of the growth parameter. Similarly, when comparing the rest of the treatments, the use of the hydrogel at 3000 g per hectare gave a much higher gross return (US$ 2289.7 ha−1), which was comparable to the application of hydrogel to senna crop at 2500 g per hectare (US$ 2183.1 ha−1). A similar pattern was observed in terms of net return (US$ 1669.0 ha−1). The benefit to cost ratio (B: C) was also much higher (2.69) when 3000 g of hydrogel was applied, and it was comparable to the application of 2500 g of hydrogel per hectare (2.52).

Simulation of Total Dry Matter Production of Glycine Max L Merrill Under Weed Management Practices

An investigation on “Weed Management and Crop Growth Modeling in Soybean” was carry out on red sandy loam soil at UAS, Main Research Station, Hebbal, Bangalore during Rabi 2010 (September to December). The weed control practices included in the study were i) Pendimethalin 30 EC 1.0 kg a.i./ha – 3 days after sowing, ii) Imazethapyr 10 SL 100 g a.i./ha – 20 days after sowing, iii) Quizalofop-p-ethyl 5 EC 50 g a.i./ha – 20 days after sowing, iv) Chlorimuron ethyl 25 WP 6 g a.i./ha – 20 days after sowing, v) Hand weeding (20 &amp; 40 DAS) and vi) un-weeded control. The experiment was designed as RCBD with four replications. Growth models – Richards, Logistic, Cubic polynomial and Quadratic polynomial simulated the course of dry matter production/plant by &gt;97per cent under all weed management practices, indicating that weed competition did not alter the pattern of crop growth, but affected the total production substantially.

Simulation of Total Dry Matter Production of (Glycine Max L. Merrill) Under Weed Management Practices

An investigation on “Weed Management and Crop Growth Modeling in Soybean” was carry out on red sandy loam soil at UAS, Main Research Station, Hebbal, Bangalore during Rabi 2010 (September to December). The weed control practices included in the study were i) Pendimethalin 30 EC 1.0 kg a.i./ha – 3 days after sowing, ii) Imazethapyr 10 SL 100 g a.i./ha – 20 days after sowing, iii) Quizalofop-p-ethyl 5 EC 50 g a.i./ha – 20 days after sowing, iv) Chlorimuron ethyl 25 WP 6 g a.i./ha – 20 days after sowing, v) Hand weeding (20 &amp; 40 DAS) and vi) un-weeded control. The experiment was designed as RCBD with four replications. Growth models – Richards, Logistic, Cubic polynomial and Quadratic polynomial simulated the course of dry matter production/plant by &gt;97per cent under all weed management practices, indicating that weed competition did not alter the pattern of crop growth, but affected the total production substantially.

Comparative Efficacy of Leguminous Intercrops and Weed Management Practices on Nutrient Uptake, Productivity and Profitability of Maize based Intercropping System

Background: Presently, labour force is diminishing and becoming costlier. In agriculture management of weeds in cropped field has become a real challenge to the farmers, since weeds are affecting the crop yields due to competition for growth resources. Intercropping of leguminous crops and application of pre-emergence herbicides offers an ample scope for weed control. Methods: The present study was conducted at University of Agricultural Sciences, Bengaluru during 2016 and 2017 on red sandy loam soil and the experiment was laid out in randomized complete block design (RCBD) with factorial concept and replicated thrice. There were 15 treatment combinations involving three intercrops and five weed management treatments. Result: The results revealed that intercropping of maize with cowpea has recorded significantly higher grain yield (5842 kg/ha), stover yield (7035 kg/ha) and total nutrients uptake (99.53, 27.37, 96.95 kg/ha NPK, respectively). Among the chemical weed management practices, pre-emergence application of pendimethalin 30% EC @ 1.50 kg a.i./ha has recorded significantly higher grain (6589 kg/ha), stover yield (8033 kg/ha), maize equivalent yield (8860 kg/ha), total nutrients uptake (112.81, 31.05, 109.88 kg/ha NPK, respectively) and B:C ratio (3.35) compared to other weed management practices.

Influence of weed management practices in maize (Zea mays) based intercropping system

A field experiment was conducted at University of Agricultural Sciences, Bengaluru during kharif 2016 and 2017 on red sandy loam soil and the experiment was laid out in Randomized Complete Block Design with factorial concept and replicated thrice. There were 15 treatment combinations involving three intercrops and five weed management practices. The results of the experiment revealed that intercropping of maize (Zea mays L.) with cowpea [Vigna unguiculata (L.) Walp.] has recorded significantly lower total weed density (5.92 No./m2), weed dry weight (6.21 g/ m2), higher WCE (66.97 %), lower WI (17.67 %), higher grain yield (5842 kg/ha) and stover yield (7035 kg/ha) but the higher MEY (8224 kg/ha) was recorded in maize + pole bean intercropping system. Among the different weed management practices, pre-emergence application of pendimethalin 30 % EC @ 1.50 kg/ha recorded significantly lower weed population (5.12 No./m2), weed dry weight (5.05 g/m2), higher WCE (81.81 %), lower WI (7.24 %), higher grain (6589 kg/ha), stover yield (8033 kg/ha) and MEY (8860 kg/ha) compared to other weed management practices.

Evaluation of Interactive Effects of Row Arrangement, Plant Geometry and Mulching on Yield of Early Maturity Maize Hybrid under Traditional Rainfed Conditions

Aim: To study the grain yield performance of early maturity maize hybrid under rainfed conditions in relation to row arrangement, plant geometry and mulching.&#x0D; Place of Study: A field experiment was conducted at Agricultural research station, Karimnagar during kharif 2011-12.&#x0D; Methodology: The experiment was carried out in red sandy loam soils, in a split- split plot design with main plots as row arrangement (2) i.) Equal rows at 67cm ii). Paired row at 84: 50cm (Between and within paired rows), Sub plots as plant geometry (3) i.) with 40000 Plants/ha (intra row spacing of 37 cm) ii.) with 50000 Plants /ha (intra spacing of 30cm) iii.) with 60000 Plants/ha (intra row spacing of 25cm) and Sub- sub plots as mulching treatments (2) i.) without mulching ii.) with surface mulch @ 5 t/ha. The results indicated that there is no significant difference in grain yield of early maturity maize hybrid, when the crop is grown in equal row spacing of 67cm (5148 kg/ha) or paired row spacing of 84:50cm (4962 kg/ha). The grain yield of maize crop with 60000 Plants /ha (i.e., 25 cm intra row spacing) recorded higher grain yield of 5339 kg/ha followed by maize crop with 50000 Plant /ha (i.e., 30 cm intra row spacing) with 5097 kg/ha grain yield and 4729 kg/ha with 40000 Plant/ha (i.e., 37 cm intra row spacing). When crop rows were mulched with grass and dried weed material @ 5t/ha significantly increased the maize grain yield (5724 kg/ha) by 23 % than compared to the crop kept without mulch (4386 kg/ha). Consequently, the maize crop with surface mulching resulted in higher net returns (Rs.31770/ha) and benefit cost ratio of 1.7 over no mulching. While, the interaction for all parameters was non significant.&#x0D; Results: It can be concluded that farmers can either follow equal row spacing or paired row spacing based on situation, as there is no significant difference in terms of yield by either method. Mulching of inter row of maize crop under rainfed conditions has resulted in 23% increased yield than that of crop kept without mulch.

Valorization of fecal sludge stabilization via vermicomposting in microcosm enriched substrates using organic soils for vermicompost production

High generation of fecal sludge without proper treatment is a major sanitation problem. A key step in curbing this problem is producing value-added resources such as vermicompost from fecal sludge through substrate enrichment. Substrate enrichment is a vermicomposting technique that involves augmenting vermibed substrates with organic rich materials to provide additional nutrients, as well as underlying layers needed for microcosm development to produce desirable vermicompost. The aim of this study was to investigate effects of substrate enrichment with organic soils (black soil, red laterite soil and sandy soil) combined with coconut coir as bulking material, on the fecal sludge vermicomposting process and quality of the end-product. The purpose of the study was to promote the development of highly nutritive vermicompost from fecal sludge using substrate enrichment as a low-cost innovative vermicomposting technique. The enriched substrates were prepared with 160g of coconut coir, 120g of fecal matter (65–70% dry matter) and 80g of organic soil. The treatments were labelled T1, T2 and T3 representing systems containing black soil, red laterite soil and sandy soil respectively. The control treatment (T4) contained no soil. Triplicate treatments were setup and about 20 3-week old clitellated earthworms of the species Eisenia. fetida with live weights ranging from 255 to 275mg, released into each system for vermicomposting over a period of 12 weeks. Physicochemical parameters such as pH, Organic Carbon (Corg), Total Nitrogen (Ntot), Available Phosphorus (Pavail), Exchangeable Calcium (Caexch), Iron (Fe), Lead (Pb) and Aluminium (Al) were determined for both the fecal sludge and the vermicompost. The vermicompost in the setup with black soil (T1) showed the highest Corg mineralization and Ntot, Pavail and Caexch enhancement followed by T2, T3 and T4. Treatment T1 also resulted in the lowest concentration of Fe, Pb and Al in the vermicompost. Concentrations of these heavy metals were found to be higher in the other treatments in increasing order of T2, T3 and T4. Less than 16% earthworm mortality was recorded in all treatments except T4, in which the mortality was about 38% (38.33 ± 13.74). The enriched substrates were therefore found to provide a more suitable microclimate for earthworm development and produced vermicompost with high nutrient content. However, a more comprehensive study on metal accumulation in the earthworm tissues as a potential metal contaminant is needed to establish a strong hypothesis in the safe use of earthworms for this vermicomposting technique.

Evaluation of Amritapani and Sanjivak liquid organic manures on growth, yield and economics of finger millet (Eleusine coracana L.)

The field experiment in Finger millet was conducted during Kharif 2019 in red sandy lomy soil of University of Agricultural Sciences, GKVK, Bengaluru with different liquid organic nutrient management practices. The growth parameters were significantly varied with application of Amritapani + Sanjivak @ 125% N equivalent ha-1 produced significantly taller plants, number of tillers, leaf area and dry matter accumulation at harvest (95.14cm, 3.87, 1066.80cm2 & 99.93g respectively) as compared to all other treatments in the experiment. Whereas, lower plant height, number of tillers, leaf area and total dry matter accumulation at harvest Sanjivak @ 75% N equivalent ha-1(75.66cm, 2.80, 660cm2 & 72.57g respectively). Higher net returns and BC ratio (Rs. 95740 ha-1 and 3.53, respectively) recorded with application of Amritapani + Sanjivak @ 125% N equivalent ha-1 and lower net returns and BC ratio (Rs. 55338 ha-1 and 2.49, respectively) were obtained with Sanjivak @ 75% N equivalent ha-1.

Use of dexcel map method for mapping of soil fertility status in Itagi village of Ranebennur Taluk, Karnataka

It is possible to prepare soil fertility maps by use of MS office (word / Excel / power point) using village land map with survey numbers in excel sheet. The village Itagi is a part of Ranebennur taluk, Karntaka, India which has major soil types black clay soil and red sandy loam soil. Problem cause analysis indicated the low soil fertility status and unscientific use of fertilizers as the reasons for low crop yields. In 86 random locations (on selected survey numbers) soils are sampled, labeled and processed. Samples are analyzed for soil pH, electrical conductivity (EC), organic carbon, macro nutrients and micro nutrients. The status of soil for each property is classified into three classes. Looking to each survey number on the excel sheet, the polygons are filled with colours for respective classes (low, medium and high). The results revealed that 69 per cent of samples belong to alkaline pH and oil salinity is medium in the area. Available nitrogen and phosphorous are low (59 % and 48 %) and available potash is medium (70 %). Organic C belongs to medium to low category. B belongs to low category, while majority of the soils have low status of other micronutrients except Cu. The DEXCEL maps prepared for pH, Av. NPK and organic C indicate the status of soil properties in the village land on respective survey numbers. Which side of the village, the particular soil parameter belongs to low category can be observed and suitable measure can be adopted for the management.

Response of nutrient management on growth and yield attributes of Brown top millet [Brachiaria ramose] in red sandy soil

The study was conducted during lait Rabi 2019-20 at ICAR- Krishi Vigyan Kendra, Haveri to Effect of nutrient Management on growth and yield of Brown top millet. The experiment was laid out in RCBD comprising of eight treatments replicated thrice. Studies revealed that the growth parameters, yield attributes and grain yield of Brown top millet differed significantly due to foliar application of NPK along with RDF and soil application of micronutrients along with RDF. The results indicated that the application of RDF + FYM 6t/ha + foliar nutrition of 19:19:19 @ 2% at 30 and 45 DAS recorded significantly higher plant height (69.75cm), number of tillers per plant and number of grains per plant (436) at harvest over the other nutrient levels. And also on par with Foliar nutrition of 19:19:19 @ 2% at 30 and 45 DAS + FYM 6 t/ha) In grain yield (7.65 q /ha) and straw yield (14.52 q/ha) recorded significant higher with application of T5 and also on par with RDF of crop + FYM 6 t/ha) over the other treatments levels. The gross returns, net returns and BC ratio were also higher with the same treatments (Rs37865, Rs.21365 and 2.39 respectively) as compared to all other treatments and absolute control.

Effect of different nutrient levels on yield and economics of browntop millet

An experiment in Browntop millet was conducted during kharif 2019 in red sandy loamy soil of Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK, Bengaluru with different nutrient levels. Fourteen treatments replicated thrice in randomized complete block design (RCBD). Among the different nutrient levels the treatment with 60 N kg ha-1 + 30 P2O5 kg ha-1 + 20 K2O kg ha-1 (T12) recorded highest grain (1295 kg ha-1), straw yield (3131 kg ha-1), Gross monetary returns (Rs. 45310 ha-1), Net monetary returns (Rs. 24240 ha-1) and B:C ratio (2.15).

Influence of NPK fertilizer doses on growth, yield and economics of improved finger millet genotypes under red sandy loam soils of Andhra Pradesh

Influence of NPK fertilizer doses on growth, yield and economics of improved finger millet genotypes under red sandy loam soils of Andhra Pradesh

Performance of improved short duration finger millet genotypes in red sandy loamy soils of North Coastal Zone of Andhra Pradesh at graded doses of NPK fertilizers

A field experiment was conducted at Agricultural Research Station, Vizianagaram during kharif, 2017 to know the fertilizer responsiveness of improved short duration finger millet genotypes. Experiment was conducted in split plot design with NPK fertilizer levels were assigned to main plots and improved finger millet genotypes were assigned to subplots. Results revealed that among the NPK fertilizer levels, performance of growth as well as yield attributes of finger millet at 100% RDF was on par with 125% RDF, however it was significantly superior over 75% RDF. Similarly yield and economics in 100%RDF was onpar with 125% RDF. Among the finger millet genotypes, highest growth, yield attributes, yield and economics were recorded in VL 386 when compared to other genotypes.