Effect of Pulse Drip Irrigation on Yield and Water Use Efficiency of Potato Crop Under Organic Agriculture in Sandy Soils

Abstract

Pulse drip irrigation is a recent concept where small frequent irrigation applications are applied to saturate the soil and meet the plant water requirements. The field experiment was carried out during two summer growing seasons 2007, it executed in Abo-Ghaleb farm, Cairo-Alex. Rood, 60 Km away from Cairo and the soil was sandy. Seed tubers were planted on 2 th of February and harvested on 28 th of May in two seasons, and the well water was used as irrigation source having EC 1.9 ds/m, the soil sample were taken up to 45 cm depth. Diameter of the lateral line was 16 mm (OD)with discharge of 2.1 l/h. The distance between emitters was 30 cm and between laterals was 70 cm. The present investigation aimed to study the effect of pulse drip irrigation under organic agriculture for saving water and increasing yield of potato. The following parameters were studied to evaluate the performance of pulse drip irrigation :( 1) Soil moisture distribution, (2) Application efficiency "AE", (3) Yield of potato "YP", (4) Water use efficiency of potato "WUE potato". The results indicated that wetted soil volume (more than or equal 100% of field capacity) in root zone"WSV≥100% FC", application efficiency, yield and water use efficiency of potato were increased by increasing number of irrigation pulses where: (1) WSV≥100% FC in root zone increased from 9617 cm 3 under continuous drip irrigation "CDI" to maximum value where it become 14272 cm 3 after applying pulse technique on 4pulses at 100 % from actual irrigation requirements "IRa" under surface drip irrigation, recording an increase of 48%. (2) Maximum values of AE were 93.5%, 97% and 99.2% under 100 %, 75 % and 50% from IRa respectively with 4 pulses under surface drip irrigation.(1) Prof. of Agric. Eng., Fac. of Agric., Cairo University (2) Assistant Prof. of Agric. Eng., Fac. of Agric., Cairo University (3) Prof. of water relations and field irrigation, N.R.C.(4) Assistant researcher, Dept. water relations and field irrigation, N.R.C.

Feasibility of Using Pulse Drip Irrigation for Increasing Growth, Yield, and Water Productivity of Red Raspberry

“…In terms of irrigation water use efficiency, pulse drip increased productivity in the present study by %0.3 kg of fruit per m 3 of water applied in 2019 and by 1.3 kg of fruit per m 3 of water applied in 2020. Efficiency was much higher during the latter year due to more rain (Table 1) Pulsing resulted in similar increases in irrigation water use efficiency in other crops, including 0.3 kg•m À3 in maize (El-Abedin 2006), 0.8 kg•m À3 in orange (Abdelraouf et al 2019), and 1.2 kg•m À3 in potato (Bakeer et al 2009), but less increase than onion, which was 2.0 to 3.2 kg•m À3 higher with pulsing than with continuous irrigation (Madane et al 2018). Each of these studies clearly indicate that pulsed drip irrigation has the potential to increase production while conserving water.…”

“…2E) and increased number of berries per plant in 2020 (data not shown). Others reported similar benefits to using pulse drip and found it increased production by an average of 2520 kg•ha À1 in strawberry (Gendron et al 2018), 335 kg•ha À1 in green bean (El-Mogy et al 2012), 6630 kg•ha À1 in head lettuce (Almeida et al 2015), 197 kg•ha À1 in maize (El-Abedin 2006), 8382 kg•ha À1 in onion (Madane et al 2018), 5688 kg•ha À1 in orange (Abdelraouf et al 2019), 712 kg•ha À1 in potato (Bakeer et al 2009), and 118 kg•ha À1 in soybean (Eid et al 2013). applied for up to 4 h per day, as needed.…”

“…Lozano et al (2020) recommended at least a 20-min pulse to reduce uneven water applications resulting from line pressurization, although others suggest that pulses should not exceed 1 h in length because longer discharge times may increase the movement of water downward rather than laterally (Elmaloglou and Diamantopoulos 2008a;Mostaghimi and Mitchell 1983;Phogat et al 2013). In recent decades, pulse irrigation has been shown to increase yield in numerous crops, including green bean (Phaselous vulgaris L.) (El-Mogy et al 2012), lettuce (Lactuca sativa L.) (Almeida et al 2015;Xu et al 2004), maize (Zea mays L.) (El-Abedin 2006), onion (Allium cepa L.) (Madane et al 2018), orange (Citrus ×sinensis) (Abdelraouf et al 2019), potato (Solanum tuberosum L.) (Bakeer et al 2009), and soybean (Glycine max L.) (Eid et al 2013). However, with the exception of strawberry (Fragaria ×ananassa Duch.)…”

Weather-based Scheduling and Pulse Drip Irrigation Increase Growth and Production of Northern Highbush Blueberry

“…In other crops, pulse irrigation increased IWUE by 0.8 kgÁm -3 in orange (Abdelraouf et al 2019), 1.2 kgÁm -3 in potato (Bakeer et al 2009), and 2.0 to 3.2 kgÁm -3 in onion (Madane et al 2018). Thus, in these crops, pulse irrigation is a means to increase growth and production with less water; however, this did not appear to be the case for northern highbush blueberry.…”

Effect Use of Pulsed Deficit Drip Irrigation for Tomato Crop in Greenhouse powered by solar energy

“…Pulse drip irrigation is used in a lot of arid and semi-arid regions, largely to reduce water losses and to improve crop yields and water productivity. Applying pulse drip irrigation technique lead to increase in water movement in horizontal direction more than vertical direction thus increasing in water soil volume (Li, et al, 2004;Bakeer, et al, 2009;Skaggs et al,2010;Abdel tawab, 2015). Ismail, et al, (2014) and Abd-elhakim (2019) reported that the advantage of pulse flow, for reducing the deep percolation of water under the crop root zone, while obtaining a wide horizontal spread of wetting.…”