scholarly journals Influence of Different Drip Irrigation and Fertigation Levels on Yield and Economics of High-density Cotton

2021 ◽  
pp. 226-234
Author(s):  
N. Lavanya ◽  
P. Laxminarayana ◽  
K. B. Suneetha Devi ◽  
G. Jayasree ◽  
Lakshmi Prayaga
Keyword(s):  
Significant Influence ◽  
Drip Irrigation ◽  
Block Design ◽  
Crop Coefficient ◽  
Growth Period ◽  
High Density ◽  
College Of Agriculture ◽  
Net Returns ◽  
Telangana State ◽  
Irrigation Levels

An experiment was conducted to study the effect of different drip irrigation and fertigation levels on yield and economics of high-density cotton at College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, during kharif 2019 and 2020. The experiment consisted of twelve treatments laid out in Factorial randomised block design (FRBD) replicated thrice.  Three irrigation levels (irrigation scheduled at 0.6 [I1], 0.8 [I2] and 1.0 [I3] Epan throughout the crop growth period) and four fertigation levels (application of 100% RDNK in differential dosage as per recommendation [F1], application of 100% RDNK in differential dosage as per crop coefficient curve [F2], application of 125% RDNK in differential dosage as per recommendation [F3], and application of 125% RDNK in differential dosage as per crop coefficient curve [F4],) were included as treatments in this study.    Irrigation levels did not show any significant influence on yield and economics during 2020 and 2021. While among the four fertigation levels, application of 125% RDNK in differential dosage as per crop coefficient curve (F4) recorded significantly higher gross returns, net returns and B:C ratio which were on par with application of 125% RDNK in differential dosage as per recommendation (F3). Lower gross returns, net returns and B:C ratio were obtained with the application of 100% RDNK in differential dosage as per recommendation (F1) which were on par with application of 100% RDNK in differential dosage as per crop coefficient curve during both the seasons (F2). Further the gross returns and net returns produced under F3 was also on par with F2.

scholarly journals A Study on Influence of Different Weed Management Practices on Yield and Economics of Rabi Groundnut in Telangana State

2021 ◽  
pp. 9-13
Author(s):  
N. Charitha ◽  
M. Madhavi ◽  
G. Pratibha ◽  
T. Ramprakash
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
High Efficiency ◽  
Block Design ◽  
College Of Agriculture ◽  
Net Returns ◽  
Telangana State ◽  
Hand Weeding ◽  
Clodinafop Propargyl

An experiment was conducted to study the effect of different high efficiency herbicides as pre and post-emergence application on the economics of groundnut at College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Hyderabad, during rabi 2020-21. The experiment consisted of ten treatments laid out in randomised block design (RBD) replicated thrice. Treatments are diclosulam 84% WDG 26 g ha-1 PE fb intercultivation at 20 DAS, imazethapyr 2% EC + pendimethalin 30% EC 960 g ha-1 PE fb intercultivation at 20 DAS, pyroxasulfone 85 % WDG 127.5 g ha-1 PE fb intercultivation at 20 DAS, propaquizafop 2.5% + imazethapyr 3.75% w/w ME 125 g ha-1 PoE fb intercultivation at 40 DAS, imazethapyr 35% +  imazamox 35% WG 70 g ha-1 PoE fb intercultivation at 40 DAS, sodium acifluorfen 16.5%  EC + clodinafop propargyl 8%  EC 250 g ha-1 PoE fb intercultivation at 40 DAS, imazethapyr 10% SL 100 g ha-1 PoE fb intercultivation at 40 DAS, intercultivation (20 and 40 DAS), intercultivation fb hand weeding (20 and 40 DAS) (Weed-free) and Unweeded control. The findings also conveys that, among all the weed management practices, higher gross returns were realized with intercultivation fb hand weeding at 20 and 40 DAS and among the herbicides, diclosulam 26 g ha-1 PE fb intercultivation at 20 DAS and imazethapyr + pendimethalin 960 g ha-1 PE of fb intercultivation at 20 DAS recorded higher returns. However the net returns and B: C ratio was significantly highest with diclosulam 26 g ha-1 PE fb intercultivation at 20 DAS and imazethapyr + pendimethalin at 960 g ha-1 PE fb intercultivation at 20 DAS.

Water Consumption Patterns and Crop Coefficient Models for Drip-Irrigated Maize (Zea mays L.) with Plastic Mulching in Northeastern China

2019 ◽  
Vol 62 (3) ◽  
pp. 571-584 ◽  
Author(s):  
Chuanjuan Wang ◽  
Jiandong Wang ◽  
Di Xu ◽  
Yanqun Zhang ◽  
Shihong Gong ◽  
...  
Keyword(s):  
Water Consumption ◽  
Drip Irrigation ◽  
Crop Coefficient ◽  
Growth Period ◽  
Northeastern China ◽  
Consumption Patterns ◽  
Plastic Mulch ◽  
Area Index ◽  
Plastic Mulching ◽  
Mulched Drip Irrigation

Abstract. Our investigations into the water consumption patterns of maize ( L.) grown using surface drip irrigation with and without plastic mulching were based on three consecutive years (2014-2016) of field experiments in a typical area of northeastern China. We evaluated seasonal crop evapotranspiration (ETc) and how it was partitioned into soil evaporation (Es) and plant transpiration (Tp) during the season. Development of crop coefficient (Kc) prediction models was based on the growth day (GD) and leaf area index (LAI) of the crop, as well as the growing degree-days of air (GDDair) and soil (GDDsoil). Results showed that plastic mulching significantly reduced Es by 41.6 to 53.5 mm (p < 0.05) compared to not mulching, while it increased Tp by 23.2 to 40.4 mm (p > 0.05) for spring-planted maize. While plastic mulching normally reduced ETc during the crop growth period, the change was not significant (p > 0.05). The three-year mean Kc for the maize growth period declined by 3.0% under plastic mulching. The mean Kc was lower for the plastic mulching treatment than for the non-mulching treatment in both the early and late season, while it was slightly higher at mid-season. The three-year means of mid-season Kc (Kc-mid) under plastic mulching and non-mulching were 1.06 and 1.05 lower, respectively, than the FAO-56 recommended value. In addition, the Kc estimation model based on GDDsoil achieved the best fitting accuracy. We recommend applying this GDDsoil model to mulched drip irrigation of maize in northeastern China to obtain more accurate Kc estimation for optimizing and developing mulched drip irrigation in this region. Keywords: Crop coefficient, Drip irrigation, Maize, Northeastern China, Plastic mulch.

scholarly journals Optimization of High Density Planting with Drip Irrigation in Rabi Onion

2019 ◽  
pp. 1-6
Author(s):  
M. D. Ojha ◽  
Vijay Kumar ◽  
R. B. Verma ◽  
M. Pal ◽  
S. R. P. Singh ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Field Experiments ◽  
Plant Density ◽  
Block Design ◽  
Irrigation Scheduling ◽  
High Density ◽  
Limiting Factor ◽  
Plant Spacing ◽  
Irrigation Interval ◽  
Bulb Yield

Irrigation scheduling is necessary for increasing onion production in an Agro-climatic zone III A and B of Bihar, where water is becoming scarce gradually and a limiting factor for onion production. Field experiments were conducted during the Rabi season of 2013-14 and 2014-15 at the experimental farm, Nalanda College of Horticulture, Noorsarai, Nalanda. The objectives were to standardize high density planting with drip irrigation and to study the yield performance and storability on onion in Nalanda region. The treatments consisted of factorial combination of three irrigation intervals (2, 4 and 6 days) and four population densities (2000000, 1333333,  1000000 and 666666 plants/ha) corresponding to 10 x 5, 10 x 7.5, 10 x 10 and 15 x 10 cm respectively. The experiments were laid out in randomized block design replicated three times. Results revealed that the highest marketable yield was significantly favoured by 2 days interval followed by 4 days. However, lower plant spacing 10 x 5 cm recorded higher plant height, minimum maturity days, grass and marketable bulb yield were significantly higher with plant spacing 10 x10 cm followed by 15 x10 cm. The marketable bulb yield was significantly higher with interaction of T7 (10 x10 cm with 2 days irrigation interval) 1000000 plant density and 2 days irrigation interval than other treatment combinations. From the results of the study, it can be concluded that 2 days interval irrigation with a plant density of 1000000 (10x10 cm) plants per hectare can be practised for maximum onion bulb yield.

scholarly journals Nutrient Uptake Studies under Varying Drip Irrigation Regimes and Fertigation Levels in Rabi Cauliflower in Telangana State

2021 ◽  
pp. 59-72
Author(s):  
G. Sidhartha ◽  
Md. Latheef Pasha ◽  
M. Umadevi ◽  
V. Ramulu
Keyword(s):  
Field Study ◽  
Drip Irrigation ◽  
Recommended Dose ◽  
Irrigation Regimes ◽  
S Uptake ◽  
Telangana State ◽  
Uptake Studies ◽  
Irrigation Levels ◽  
Drip Fertigation ◽  
Plot Design

A field study was conducted with different drip irrigation regimes and NK fertigation levels on cauliflower at Hyderabad, Telangana during rabi 2019-2020. The experiment was laid out in a split plot design with three drip irrigation regimes viz., 0.6, 0.8 and 1.0 Epan as main plots and three drip NK fertigation levels of control (N0K0), 50 % recommended dose of NK (N40 K50) and 100 % recommended dose of NK (N80 K100) as sub plots altogether nine treatments and replicated thrice. Drip irrigation scheduled at 1.0 Epan recorded significantly higher curd yield (18.7 t ha-1) than 0.8 Epan (17.1 t ha-1) and 0.6 Epan (15.0 t ha-1). NPK and S uptake were significantly higher in irrigation scheduled at 1.0 Epan than 0.8 and 0.6 Epan during all stages except at 30 DAT and harvest where S uptake was found to be non significant among different irrigation levels. Drip fertigation at 100 % recommended dose of NK recorded significantly higher curd yield (23.8 t ha-1) than 50 % recommended dose of NK (19.7 t ha-1) and N0K0 (7.2 t ha-1). Drip NK fertigation levels significantly increased the NPK and S uptake with each increment in NK fertigation level from N0K0 to 100 % recommended dose of NK at all stages.

scholarly journals ROLE OF COMPOST AND IRRIGATION WATER QUANTITY ON SOME PHYSICAL PROPERTIES OF SOIL UNDER SURFACE, SUBSURFACE DRIP IRRIGATION

2020 ◽  
Vol 51 (5) ◽  
pp. 1300-1307
Author(s):  
Al-Shamari & et al.
Keyword(s):  
Physical Properties ◽  
Irrigation Water ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Block Design ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip ◽  
Irrigation Levels ◽  
Properties Of Soil

A field experiment was conducted in Ramadi district - Al-Anbar province during the autumn season of 2018. to study the role of compost (sheep residues) and irrigation levels in some physical properties of soil and water consumption a potato under surface and subsurface drip irrigation system. Randomized Complete Block Design (RCBD) in arrangement of a split- split-plot with  three replication were used.The results showed that the addition of 10 Mg.h-1  resulted in a significant decrease in bulk density (BD) values of 1.12 Mg m-3, and increase in the values of (MWD) and (Ks) to reach 1.47 mm and 10.3 cm. hr -1 respectively. The addition of 50% of the NID reduced the BD to 1.24 Mg m-3, The MWD and SHC were significantly higher to reach 1.24 mm and 8.1 cm hr-1 respectively. WHC increased with increasing of amount of irrigation water as it reached the highest value of 265.66 mm season-1 when adding 100% of the NID. The BD values decreased, whereas MWD and SWC increased under subsurface irrigation (SUBDI) treatment to be 1.23 Mg m-3, 1.24 mm and 8.4 cm hr-1, respectively.

scholarly journals Response of Rainfed Castor to Soil and Foliar Application of Zinc and Iron Micronutrients

2021 ◽  
Vol 12 (3) ◽  
pp. 158-164
Author(s):  
A. V. Ramanjaneyulu ◽  
◽  
A. Madhavi ◽  
M. V. Nagesh Kumar ◽  
T. L. Neelima ◽  
...  
Keyword(s):  
Seed Yield ◽  
Foliar Application ◽  
Block Design ◽  
Foliar Spray ◽  
Field Investigation ◽  
Soil Application ◽  
Net Returns ◽  
Randomized Block Design ◽  
Telangana State ◽  
Bean Crop

A field investigation was carried out to study the influence of zinc and iron micronutrients on the performance of rainfed castor, in Professor Jayashankar Telangana State Agricultural University, Telangana state, India for three consecutive years during kharif 2011-12, 2012-13 and 2013-14. There were nine treatments viz., Control (no micronutrient application); soil application of FeSO4 @ 15 kg ha-1; soil application of FeSO4 @ 25 kg ha-1; soil application of ZnSO4 @ 15 kg ha-1; soil application of ZnSO4 @ 25 kg ha-1; foliar application of 0.5% FeSO4 at 50 DAS; foliar application of 0.5% FeSO4 at 50 and 90 DAS; foliar application of 0.5% ZnSO4 at 50 DAS; foliar application of 0.5% ZnSO4 at 50 and 90 DAS and tested in randomized block design with three replications. The foliar application of ZnSO4 (0.5%) twice at 50 and 90 DAS resulted in significantly higher seed yield (1698 kg ha-1), higher gross returns (Rs. 54344 ha-1), net returns (Rs. 33501 ha-1) and B:C ratio (2.60) over rest of the treatments. The seed yield improvement was to the tune of 54% over no micronutrient application. The uptake of major and micronutrients was greater when the crop received two sprays of ZnSO4 as compared to one spray of ZnSO4, two sprays of FeSO4 and soil application of either of the micronutrients. The castor bean crop responded to Zn better than Fe by producing 10.2% to 12.2% higher seed yield. Foliar spray was found superior to soil application in case of both the micronutrients.

scholarly journals PRODUTIVIDADE E EFICIENCIA DE USO DE ÁGUA DAS BANANEIRAS ´PRATA ANô E ´GRAND NAINE´ SOB IRRIGAÇÃO NO TERCEIRO CICLO NO NORTE DE MINAS GERAIS

Irriga ◽  
2006 ◽  
Vol 11 (4) ◽  
pp. 460-468 ◽  
Author(s):  
Eugênio Ferreira Coelho ◽  
Édio Luis da Costa ◽  
Carlos Alberto da Silva Ledo ◽  
Sebastião De Oliveira e Silva
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Crop Coefficient ◽  
Weather Conditions ◽  
Minas Gerais ◽  
Irrigation Frequency ◽  
Irrigation Level ◽  
The North ◽  
Musa Sp ◽  
Irrigation Levels

PRODUTIVIDADE E EFICIENCIA DE USO DE ÁGUA DAS BANANEIRAS ´PRATA ANô E ´GRAND NAINE´ SOB IRRIGAÇÃO NO TERCEIRO CICLO NO NORTE DE MINAS GERAIS  Eugênio Ferreira Coelho1; Édio Luis da Costa2; Carlos Alberto da Silva Ledo1; Sebastião de Oliveira e Silva1 1Embrapa Mandioca e Fruticultura, Cruz das Almas, BA, [email protected], Epamig, Nova Porteirinha, BA  1 RESUMO O trabalho teve como objetivo definir o regime de irrigação mais adequado à cultura da bananeira, no terceiro ciclo, para as condições do Norte de Minas Gerais. O delineamento experimental foi em blocos casualizados, em parcelas subdivididas, com três freqüências de irrigação na parcela, cinco lâminas de irrigação para cada freqüência e duas cultivares por lâmina em quatro repetições. Os cinco regimes de irrigação foram definidos em função da evapotranspiração da cultura a partir de variações do coeficiente de cultivo fixado em 1,1 em todo o ciclo. A produtividade das cultivares e algumas características físicas dos frutos foram avaliadas para todos os tratamentos. Foi observado resposta das cultivares em todas as variáveis dependentes avaliadas e influencia do regime de irrigação na produtividade da bananeira para ambas as cultivares. Não houve efeito da freqüência de irrigação na produtividade, apenas no diâmetro de frutos. O regime de irrigação correspondente ao uso da ETc a partir do coeficiente de cultura fixo em 1,1 durante o ciclo foi o mais adequado para ambas as cultivares de banana, tanto em termos de produtividade como em eficiência de uso de água.  A cultivar Grand Naine é mais eficiente no uso de água que a cultivar Prata Anã. UNITERMOS: Musa sp., evapotranspiração, coeficiente de cultivo, cultivares “Grand Naine” , “Prata Anã”.  COELHO, E. F.; COSTA, É. L. da; LEDO, C. A. da S.; SILVA, S. de O. e. PRATA ANA´ AND ´GRAND NAINE’ BANANA YIELD UNDER IRRIGATION IN THE NORTH OF MINAS GERAIS  2 ABSTRACT This study aimed to define the most adequate irrigation level for banana crop under Northern Minas Gerais weather conditions. The experiment followed a randomized block design in a split-plot scheme, with three irrigation frequencies, five water depths for each frequency and two cultivars for each water depth.  Four replications were adopted. The five irrigation levels were defined according to crop evapotranspiration obtained from variations of a referential crop coefficient (Kc = 1.1).  Total yield and some physical fruit characteristics were evaluated for all treatments in both cultivars. All dependant variables and influence of irrigation levels for both cultivars were observed. Irrigation frequency did not affect crop yield, only fruit diameter. The irrigation level based on the referential crop coefficient of 1.1 was the most adequate one for both banana cultivars in relation to yield and water use efficiency. Irrigation is more efficient for Grand Naine cultivar than Prata Anã. KEYWORDS: Musa sp., evapotranspiration, crop coefficient, “Grand Naine”, “Prata Anã” cultivars.

scholarly journals Dry Matter Production and Nutrient Uptake of Coloured Capsicum Hybrids (Capsicum annuum var. grossum L.) as Influenced by Different Irrigation Levels under Shade Net

2021 ◽  
pp. 1-8
Author(s):  
B. Kiruthiga ◽  
K. Avil Kumar ◽  
K. Sreenivasa Kumar ◽  
A. Srinivas
Keyword(s):  
Nutrient Uptake ◽  
Drip Irrigation ◽  
Dry Matter ◽  
Growth Period ◽  
Crop Growth ◽  
Dry Matter Production ◽  
Matter Production ◽  
Daily Evaporation ◽  
Irrigation Levels ◽  
Plot Design

Aim: The experiment was aimed at evaluating the influence of different irrigation levels on dry matter production and nutrient uptake of coloured capsicum hybrids. Study Design:  Split plot design with three replications Place and Duration of Study: Horticultural farm, College of Agriculture, Rajendranagar, Hyderabad during rabi 2018-19. Methodology: The experiment was laid out in split plot design and the treatments comprises of four irrigation levels viz., drip irrigation at 0.4, 0.6, 0.8 and 1.0 Epan as main treatments and three hybrids viz., Indra (green), Orobelle (yellow), Bomby (red) as sub treatments and replicated thrice. The recommended dose of nutrients were 100:80:60 N, P2O5 and K2O kg ha-1 and entire dose of P2O5 was applied as basal, N and K2O was applied through venturi meter as fertigation on three days interval from 9 to 153 DAT. The crop was transplanted at 45 cm × 40 cm spacing in September under a green shade net. Irrigation scheduling was done based on daily evaporation data recorded from USWB class ‘A’ pan evaporimeter. The cumulative daily evaporation during crop growth period was 737.5 mm. Quantity of water applied including special operations of 26 mm and effective rainfall during crop growth period were 245.3, 392.0, 546.5 and 698.5 mm and 58.6, 64.2, 74.6, 82.6 mm out of 127.4 mm of rainfall for 100, 80, 60 and 40 per cent irrigation treatments, respectively as per water balance method. Bed size was 7.6 m × 0.9 m. Results: Significantly higher yield (47.50 t ha-1) was recorded with drip irrigation at 1.0 Epan than rest of the treatments. Indra recorded significantly higher yield (40.27 t ha-1) than other two hybrids. The interaction effect between drip irrigation levels and hybrids was not significant on Dry Matter Production and N, P & K uptakes and economics of capsicum. DMP and nutrient uptake were significantly higher with drip irrigation at 1.0 Epan than 0.8, 0.6 and 0.4 Epan throughout the crop growth over other drip irrigation levels. Among hybrids, Indra recorded significantly higher DMP and nutrient uptake than other two hybrids.

scholarly journals Effect of Different Levels of Potassium on Yield and Economics of Kharif Maize (Zea mays L.)

2020 ◽  
pp. 126-132
Author(s):  
Mohd. Zakir Hussain ◽  
Ashok Kumar Kumar ◽  
Devendra Mandal ◽  
Rajeev Singh ◽  
R. K. Sohane
Keyword(s):  
Grain Yield ◽  
Zea Mays L ◽  
Marked Effect ◽  
Block Design ◽  
College Of Agriculture ◽  
Net Returns ◽  
Randomized Block Design ◽  
Stover Yield ◽  
Crop Research ◽  
Different Levels

A field experiment was conducted during Kharif season at Crop Research Farm of Tirhut College of Agriculture, Dholi in 2017 to observe the effect of different levels of potassium on yield and economics of Kharif maize. The experiment was laid out in Randomized block design with four replications and nine treatments at a different level of potassium (0, 30, 60, 90, 120 and 150 kg ha-1) in which three treatments T7, T8 and T9 were along with 5 tons of FYM. There were no marked effect of different treatments on the number of cob plant-1, length of cob, the girth of cob and test weight. However, the number of grains cob-1 was found significantly higher in treatment T9 (T4 + 5 t FYM ha-1). Grain yield, stover yield and stone yield were significantly influenced by different treatments. The maximum grain yield (63.19 q ha-1), stover yield (101.61 q ha-1) and stone yield  (14.61 q ha-1) were recorded under treatment T9 (T4 + 5 t FYM ha-1). Economics of different  treatments indicated  that by higher grain yield, treatment T9 (T4 + 5 t FYM ha-1) exhibited maximum gross returns, net returns and B:C ratio of Rs 90,046 ha-1, Rs 47,987 ha-1 and 1.14, respectively.

ESTIMATION OF CONSUMPTIVE USE OF POTATO CROP PIANTED UNDER DRIP IRRIGATION SYSTEM BY USING SWRT TECHNOLOGY

2020 ◽  
Vol 10 (1) ◽  
pp. 271-282
Author(s):  
J.N. Abedalrahman ◽  
R.J. Mansor ◽  
D.R. Abass
Keyword(s):  
Water Consumption ◽  
Drip Irrigation ◽  
Soil Depth ◽  
Irrigation System ◽  
Potato Crop ◽  
Block Design ◽  
Organic Fertilizer ◽  
Control Treatment ◽  
Drip Irrigation System ◽  
Spring Season

A field experiment was carried out in the field of the College of Agriculture / University of Wasit, located on longitude  45o   50o   33.5o   East and latitude 32o 29o 49.8o North, in Spring season of the agricultural season 2019, in order to estimate the water consumption of potato crop using SWRT technology and under the drip irrigation system. The experiment was designed according to Randomized Complete Block Design (RCBD) with three replications and four treatments that include of the SWRT treatment (the use of plastic films under the plant root area in an engineering style), and the treatment of vegetal fertilizer (using Petmos), organic fertilizer (sheep manure), and the control treatment . Potato tubers (Solanum tuberosum L.)  var. Burin was planted for spring season on 10/2/2019 at the soil depth of 5-10 cm. The highest reference water consumption for the potato crop during the season was calculated by Najeeb Kharufa, which was 663.03 mm. The highest actual water consumption for the potato crop during the season for the control treatment was 410.1 mm. The results showed increase in the values of the crop coefficient (Kc) in the stages of tubers formation and tubers filling stage as compared to the vegetative and ripening stages, ranged from 1.37-1.92 for the two stages of tubers formation and tubers filling. The SWRT treatment gave the highest water use efficiency during the season, was 3.46 kg m-3 .

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