scholarly journals Effect of planting geometry on cane yield and water productivity under sub-surface drip fertigation system

2017 ◽  
Vol 12 (Special-7) ◽  
pp. 1786-1787
Author(s):  
M. VIJAYAKUMAR ◽  
M. MOHAMED YASSIN ◽  
A. SUDHA ◽  
M. SENTHIL KUMAR
Keyword(s):  
Water Productivity ◽  
Cane Yield ◽  
Planting Geometry ◽  
Drip Fertigation

scholarly journals Drip Fertigation Technology for Enhancing Date Palm Productivity and Fruit Quality

2018 ◽  
Vol 10 (11) ◽  
pp. 380
Author(s):  
N. Th. Mazahrih ◽  
A. S. Al Sayari ◽  
S. A. Al Shamsi ◽  
M. Ben Salah
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Water Productivity ◽  
Statistical Design ◽  
Phoenix Dactylifera ◽  
Fertilizer Application ◽  
Growing Seasons ◽  
Phoenix Dactylifera L ◽  
Application Methods ◽  
Drip Fertigation

A field experiment was conducted during two successive growing seasons, 2014/2015 and 2015/2016 to evaluate the effect of different fertilizer application methods on date palm (Phoenix dactylifera L.) yield and fruit quality grown in sandy soil. Strip block statistical design with three replicates was used on four selected date palm cultivars (Madjool, Sacchari, Kheyarah and Sggaa) as main treatments and three fertilizer application methods (Hydraulic injector, Surface Broadcast and By-pass tank) as sub main treatments. The results revealed significant increases in yield and fruit quality when using continuous fertigation by Hydraulic injector comparing with broadcast and By-pass tank traditional methods. The average of two seasons results indicated also that using Hydraulic injector method maximized Sacchari date yield by producing 69 kg per tree and resulted in the best water productivity (1.06 kg m-3). The use of fertigation method has significantly increased the date palm productivity by 81, 51.2, 66.7 and 72.8% in comparison to the traditional Surface Broadcast method for Madjool, Sacchari, Kheyarah and Sggaa, respectively. The mean fruit weights were significantly increased by 56.5, 72.1, 90.2 and 68.8% when using the hydraulic injector compared to the traditional broadcast application method for pervious date palm cultivars, respectively.  

PERFORMANCE OF UMAR-SRIMAT ON SOIL WATER CONSERVATION AND WEED CONTROL IN SYSTEM OF RICE INTENSIFICATION

2015 ◽  
Vol 76 (15) ◽  
Author(s):  
Umar Mohammed ◽  
Aimrun Wayayok ◽  
Mohd Amin Mohd Soom ◽  
Khalina Abdan
Keyword(s):  
Soil Moisture ◽  
Weed Control ◽  
Water Conservation ◽  
Crop Yields ◽  
Block Design ◽  
Water Productivity ◽  
Control Treatment ◽  
System Of Rice Intensification ◽  
Planting Geometry ◽  
Rice Intensification

Weed emergence is among the most important problems in system of rice intensification (SRI) due to extensive planting geometry of at least 25 × 25 cm and moist environment, thereby leading to water loss by means of evaporation from the broad space as a result of the extensive planting geometry, and transpiration by the weeds. This reduces the additional water saving which affect the potential of SRI water productivity.  It also reduces rice crop yields up to 70% if there is no weed control attempted. Nowadays, weed is being controlled by manual weeder which is labour demanding, while motorized weeders overcome the problem but still, it able to remove the weeds before rice canopy closure or 30 days after transplanting (DAT). This research was designed to evaluate the performance of UMAR-SRImat on soil moisture conservation and weed control. UMAR-SRImat was made using flaked rice straw and biodegradable adhesive. The design was laid out using randomized complete block design (RCBD) with three treatments [without soil cover (T1), SRImat (T2), UMAR-SRImat (T3)] and three replications. The analysis was conducted using analysis of variance (ANOVA). Volumetric moisture content (VMC) was determined at 18 and 25 DAT.  Weeds were observed and recorded to determine the weed dry weight and weed control efficiency at 20, 40 and 60 DAT. Plant height per hill was measured at 30 and 50 DAT, likewise, the number of tillers were counted at 30 and 50 DAT. The result of VMC showed that UMAR-SRImat significantly conserved water higher than the control treatment at 18 and 25 DAT of 3100.0a and 2680.0a m3/ha, respectively. The effectiveness of UMAR-SRImat mulched was 100% at 20 DAT 99.64% at 40 DAT and 97.99% at 60 DAT. This research revealed that UMAR-SRImat mulch could retain soil moisture and suppressed weeds up to 60 DAT.

scholarly journals Scheduling of irrigation with mulch under different sugarcane planting methods

2019 ◽  
Vol 117 ◽  
pp. 00011
Author(s):  
Thimmegowda Puttavenkategowda ◽  
T. E. Nagaraja
Keyword(s):  
Irrigation Water ◽  
Green Manure ◽  
Water Productivity ◽  
Irrigation Scheduling ◽  
Furrow Irrigation ◽  
Cane Yield ◽  
Total Water ◽  
Planting Methods ◽  
Plot Design

A filed experiment was conducted at ZARS, V. C. Farm, Mandya to enhance the crop and water productivity in sugarcane during 2017-18 and 2018-19. The design used was strip plot design with planting methods as a horizontal factor and irrigation scheduling as a vertical factor with three replications. Among the planting methods, 120 cm row spaced furrow planting with dhaincha green manure sowing at 30 DAP and mulching at 75 DAP recorded significantly higher cane yield (158.5 and 161.0 t/ha, respectively) as compared to others during both the years of experimentation. Among the irrigation schedules, IW/CPE ratio of 1.0 recorded significantly higher yield (168.1 and 170.8 t/ha, respectively) as compared to IW/CPE ratio of 0.60 (129.7 and 131.8 t/ha, respectively). The total water used was significantly lower in 120 cm spaced furrow planting with alternate skip furrow irrigation afte5r earthing + green manure mulching (1773 and 1751 mm, respectively) and it saved 16% of irrigation water. Scheduling of irrigation at IW/CPE ratio of 0.6 consumed lowest amount of irrigation water (1725 mm) and saved 18% of irrigation water.

Effect of different drip fertigation methods on maize yield, nutrient and water productivity in two-soils in Northeast China

2019 ◽  
Vol 213 ◽  
pp. 200-211 ◽  
Author(s):  
Dali Wu ◽  
Xinxing Xu ◽  
Yanling Chen ◽  
Hui Shao ◽  
Eldad Sokolowski ◽  
...  
Keyword(s):  
Northeast China ◽  
Water Productivity ◽  
Maize Yield ◽  
Drip Fertigation

scholarly journals Irrigation Water Use Efficiency and Water Productivity of Commercial Sugarcane Hybrids under Water-Limited Conditions

2020 ◽  
Vol 63 (1) ◽  
pp. 125-132
Author(s):  
Arjun S. Tayade ◽  
Srinivasavedantham Vasantha ◽  
Raja Arun kumar ◽  
Sheriff Anusha ◽  
Rajesh Kumar ◽  
...  
Keyword(s):  
Water Use ◽  
Irrigation Water ◽  
Deficit Irrigation ◽  
Water Productivity ◽  
Water Security ◽  
Irrigation Scheduling ◽  
Cane Yield ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Sugarcane Hybrids

HighlightsSugarcane hybrids with improved IWUE have greater scope in sugarcane agriculture as irrigation water is getting scarce.Among sugarcane hybrids, Co 8371 registered high mean water productivity of 4.18 kg m-3, followed by Co 85019 (3.92 kg m-3), while in I2, six hybrids had significantly higher water productivity (Co 85019, Co 0212, Co 86249, Co 10026, Co 0218 and Co V92102) above 4 kg m-3.Deficit irrigation scheduling (irrigation at recommended interval, with 50% crop evapotranspiration replacement) appears to be far more useful than reducing frequency as well as quantity of irrigation water alone. Hybrid mean water productivity was 3.2, 2.7, and 2.1 kg m-3 in I0, I1, and I2, respectively.ABSTRACT. The escalating deficit rainfall scenario in India indicates that drought is a recurrent phenomenon associated with tropical sugarcane farming, and the availability of irrigation water for sugarcane cultivation will be much less in coming years. To meet the challenge of limited and costly water supply, tropical sugarcane growers will have to find ways of increasing the efficiency of irrigation to maintain high cane yields. More efficient irrigation systems, accurate irrigation scheduling, and the right choice of sugarcane hybrids are potential means of increasing irrigation water use efficiency (IWUE), water productivity (WP), and global water security. With the objective of optimizing irrigation water use, a field experiment evaluating the physiological efficiency of commercial sugarcane hybrids for WP in a sandy clay soil under water-limited conditions was conducted during 2016-2017 at the ICAR-Sugarcane Breeding Institute in Coimbatore, India. The replicated field experiment was laid out in split-plot design with three irrigation levels as the main plot and 33 sugarcane hybrids as subplots. The prevailing climatic conditions during the experiment represented a tropical wet and dry climate, with the wet season lasting from October to December due to the northeast monsoon. The results showed that full irrigation at recommended intervals with 100% crop evapotranspiration (ET) replacement (I0) produced significantly higher cane yield than deficit irrigation at recommended intervals with 50% crop ET replacement (I1) and skipping alternate irrigations with 50% crop ET replacement (I2). The deficit irrigation treatments (I1 and I2) had declines in cane yield of 41.2% and 56.4%, respectively. IWUE was similar in I0 and I1, while I2 had reduced IWUE by 23%. WP was significantly influenced by irrigation level; reduction in irrigation water reduced WP by 17.5% and 36.3% in I1 and I2 compared to I0. Among sugarcane hybrids, Co 85019, Co 13006, Co 10026, Co 99004, CoLk 8102, Co 86249, Co 8371, Co 94008, and Co 95020 yielded higher than the genotypic mean under both deficit irrigation treatments, suggesting their usefulness in deficit irrigation strategies. Sugarcane hybrids with high WP can play a pivotal role in sustaining sugarcane productivity and can reduce the large volumes of irrigation water consumed in water-scarce tropical India. Thus, considering water security, the implications of the results are of paramount importance in promoting the coordinated development and management of water, land, and related resources to maximize economic benefits and social welfare in an equitable manner without compromising the sustainability of vital ecosystems at local as well as national levels. Keywords: Cane yield, Global water security, Sugarcane, Water-limited condition.

scholarly journals Effect of Drip Fertigation and Mulching on Yield Parameter and Water Productivity of Pigeonpea (Cajanus cajan L.)

2021 ◽  
Author(s):  
Sunil Kumar ◽  
C. Seenappa ◽  
R. Manjunatha ◽  
M.R. Anand
Keyword(s):  
Climatic Condition ◽  
Block Design ◽  
Water Productivity ◽  
Maximum Yield ◽  
Treatment Combination ◽  
Resource Saving ◽  
Potential Yield ◽  
Randomized Block Design ◽  
Plastic Mulching ◽  
Drip Fertigation

Background: Pigeonpea is second most important pulse crop grown after chickpea in India. Pigeonpea is versatile crop can be grown in vast agro climatic condition with low input. Although the yield is very less as compare to the potential yield, so we need to increase the yield of pigeonpea using modern techniques such as drip fertigation and mulching. Both these techniques are resource saving and realized maximum yield as compare to conventional practices. Methods: The experiment was laid out in factorial complete randomized block design with three replications. The experiment consisted of two levels of irrigation (0.50 CPE and 0.75 CPE) as one factor and three fertility levels (100% RDF,75% RDF and 50% RDF) as second factor and two levels of mulching (without mulching and with plastic mulching 25 micron) as third factor. Result: The results revealed that the combination of higher level of irrigation with 100 per cent RDF and with plastic mulching recorded significantly higher seed yield, water productivity and B.C ratio compared to the rest of the treatment combination.

scholarly journals Production and Economics of Hybrid Tomato (Solanum lycopersicum) under Drip Fertigation

Agropedology ◽  
2019 ◽  
Vol 28 (1) ◽  
Author(s):  
K.D. Kale ◽  
◽  
D.D. Pawar ◽  
R.R. Hasure ◽  
S.K. Dingre ◽  
...  
Keyword(s):  
Block Design ◽  
Water Productivity ◽  
Growth Yield ◽  
Fertilizer Application ◽  
Silty Clay ◽  
Foliar Sprays ◽  
Randomized Block Design ◽  
Four Levels ◽  
Post Graduate Institute ◽  
Drip Fertigation

A field study was conducted at experimental farm of Interfaculty Department of Irrigation Water Management, Post Graduate Institute, M.P.K.V., Rahuri, Maharashtra, India during Rabi season of 2014-15. The experiment was laid out in randomized block design with eight treatments and three replications. The treatments consisted of four levels of fertilizer application as 100%, 75%, 75% with foliar sprays and 50% recommended dose (RD) under drip fertigation (DF) and compared with conventional irrigation and conventional fertilizer application. The significantly higher yield (52.62 t ha-1) of tomato was obtained in DF with 100% RD and it was at par with DF with 75% RD + 3 foliar sprays, DF with 100% RD, N and K drip, P through soil and DF with 75% RD. The drip method had lowest water use (458.4 mm) as compared with 878.6 mm in surface irrigation method. The treatment consisting DF with 100% RD provided net seasonal income (Rs. 3,93,311 ha-1), net extra income over control (Rs.1,52,056 ha-1). The maximum B:C ratio (3.96) was observed in DI with 100% RD, N and K drip, P through soil followed by DF with 100% RD. The fertigation with 75% RD in 18 weekly splits as per schedule is the best treatment for improved growth, yield and water productivity of tomato (var. Abhinav) cultivated in silty clay loam soils of Western Maharashtra.

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