scholarly journals Influence of drip fertigation on water productivity and profitability of maize

2013 ◽  
Vol 8 (28) ◽  
pp. 3757-3763 ◽  
Author(s):  
Anitta Fanish S
2018 ◽  
Vol 10 (11) ◽  
pp. 380
Author(s):  
N. Th. Mazahrih ◽  
A. S. Al Sayari ◽  
S. A. Al Shamsi ◽  
M. Ben Salah

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.  


2017 ◽  
Vol 12 (Special-7) ◽  
pp. 1786-1787
Author(s):  
M. VIJAYAKUMAR ◽  
M. MOHAMED YASSIN ◽  
A. SUDHA ◽  
M. SENTHIL KUMAR

2019 ◽  
Vol 213 ◽  
pp. 200-211 ◽  
Author(s):  
Dali Wu ◽  
Xinxing Xu ◽  
Yanling Chen ◽  
Hui Shao ◽  
Eldad Sokolowski ◽  
...  

Author(s):  
Sunil Kumar ◽  
C. Seenappa ◽  
R. Manjunatha ◽  
M.R. Anand

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.


Agropedology ◽  
2019 ◽  
Vol 28 (1) ◽  
Author(s):  
K.D. Kale ◽  
◽  
D.D. Pawar ◽  
R.R. Hasure ◽  
S.K. Dingre ◽  
...  

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.


Author(s):  
Zhiwen Feng ◽  
Shuqin Wan ◽  
Yaohu Kang ◽  
Shiping Liu

To establish the optimum fertilizer rate and propose an appropriate drip fertigation regime for potato (Solanum tuberosum L.) on sandy soil, a two-year field experiment comparing different fertigation levels on potato yield, irrigation water productivity (IWP) and partial fertilizer productivity (PFP) was carried out during 2012–2013. The treatments included five fertigation levels: 10%, 30%, 50%, 70% and 90% of the recommended fertilizer dose of 420:105:495 of N:P:K in kg ha–1 year–1 in 2012; and 10%, 35%, 60%, 85% and 110% of the recommended dose of 390:150:465 of N:P:K in kg ha–1 year–1 in 2013. The recommended fertilizer dose was estimated based on the method of nutrient balance for a target yield of 45.0 Mg ha–1. The soil matric potential at 20 cm depth beneath the emitters was controlled above –25 kPa for drip fertigation. Results showed the highest tuber yield was 38.0 Mg ha–1 for 90%NPK in 2012 and 45.8 Mg ha–1 for 60%NPK in 2013, which was significantly higher than that for 10%NPK. The highest IWP was for 70%NPK in 2012 and 60%NPK in 2013. The highest PFP values were 255.5 kg kg−1 in 2012 and 316.4 kg kg−1 in 2013, recorded in the 10%NPK plots and were significantly higher than for other fertigation treatments. High yield levels of potatoes and both high IWP and PFP could be reached by drip fertigation with 72% of the recommended fertilization dose. Compared with the recommended fertilizer dose, the yield and IWP of 72% NPK increased by 5.9% and 4.7%, respectively. It was possible to make average savings in one season alone of 136, 36 and 152 kg ha–1 N, P2O5 and K2O, respectively. In conclusion, drip fertigation with 72% NPK should be considered optimum for potato production on sandy soils. Each fertilizer amount based on irrigation interval was applied with irrigation quota at 5–6 mm when soil matric potential at soil depths of 20 cm immediately under drip emitters reached –25 kPa. Furthermore, drip fertigation was triggered when 10 consecutive days were without fertigation or rainfall in 24 h exceeded 10 mm.


Author(s):  
A. S. Brar ◽  
G. S. Buttar ◽  
Mandeep Singh ◽  
Sikander Singh ◽  
K. K. Vashist

Author(s):  
Rumiana Kireva ◽  
Roumen Gadjev

The deficit of the irrigation water requires irrigation technologies with more efficient water use. For cucumbers, the most suitable is the drip irrigation technology. For establishing of the appropriate irrigation schedule of cucumbers under the soil and climate conditions in the village of Chelopechene, near Sofia city, the researchеs was conducted with drip irrigation technology, adopting varying irrigation schedules and hydraulic regimes - from fully meeting the daily crops water requirements cucumbers to reduced depths with 20% and 40%. It have been established irrigation schedule with adequate pressure flows in the water source, irrigation water productivity and yields of in plastic unheated greenhouses of the Sofia plant.


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