scholarly journals Effect of deficit drip irrigation on yield and water productivity of potato crop

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Syed Ijaz-ul-Hassan ◽  
Arifa Khan ◽  
Shazia Erum
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Tuber Yield ◽  
Potato Crop ◽  
Water Productivity ◽  
Water Application ◽  
Potato Tubers ◽  
The Right ◽  
Near Future ◽  
Adequate Management

On the eve of changing climate, it is expected that there will be a competition to reallocate water for agricultural, industrial and urban needs in near future. Thus, in view of the increased water scarcity, an adequate management for water application is required to maximize water use and increase yield. In this regard, a field trial comprising four deficit drip irrigation treatments on potato crop under drip irrigation was conducted in filed condition using RCB design with four replications. Cropwat 8.0 program was used to determine the interval and depth of next irrigation at 15, 30, 45 60% management allowable depletion (MAD) of soil moisture. The outcomes indicated that irrigation to potato crop at 30% MAD level gave the highest water productivity (17.28 kg/m3) followed by 60, 15 and 45% MAD levels. Maximum %age of medium sized tuber was achieved by applying irrigation to potato crop at 60% MAD level (65.70) followed by 30% MAD level (65.5), 45% MAD (64.0) and 15% MAD level (60.50). The incidence of scab was found 2.50%, 2.75%, 3.25% and 3.75% in potato tubers at 15, 30, 45 and 60% MAD level, respectively. Thus, growers can save the water by adopting this water saving technique without reduction in tuber yield. For proper adaptation of new technique and practice, common farmer of Pakistan should be educated in term of visits to govt. research institutions and adoptive research farms to understand the right step to words better yield.

Evaluation of Different Moisture Depletion Levels for Water Productivity, Yield and Tuber Size of Potato under Drip Irrigation

2020 ◽  
pp. 105-108
Author(s):  
Syed Ijaz ul Hassan ◽  
Muhammad Akram ◽  
Habibullah Habib ◽  
Muhammad Imran ◽  
Muhammad Naveed Ahsan ◽  
...  
Keyword(s):  
Water Management ◽  
Soil Moisture ◽  
Drip Irrigation ◽  
Tuber Yield ◽  
Potato Crop ◽  
Water Productivity ◽  
Tuber Size ◽  
Management Research ◽  
Potato Tubers ◽  
Different Levels

A field experiment comprised of four different levels of management allowable depletion (MAD) of soil moisture for next irrigation to potato crop under drip irrigation was conducted during 2017-18 and repeated during 2018-19 at Water Management Research Farm, Renala Khurd, Okara, Pakistan. Cropwat 8.0 program was used to determine the interval and depth of next irrigation at 15, 30, 45 and 60% MAD of soil moisture. The experiments during both the years were organized in RCBD fashion with four replications. Irrigation to potato crop at 30% MAD level depicted the highest water productivity (17.28 kg/m3), followed by 60%, 15% and 45% MAD levels with water productivity values of 16.90, 16.63 and 14.60 kg/m3, respectively. The highest tuber yield was obtained when potato crop was irrigated at 60% MAD level (28.411 tons ha-1), followed by 30% MAD level (27.998 tons ha-1), 15% MAD level (26.736 tons ha-1) and 45% MAD level (24.081 tons ha-1). The maximum %age of medium sized tubers was achieved by applying irrigation to potato crop at 60% MAD level (65.70), followed by 30% MAD level (65.50), 45% MAD level (64.00) and 15% MAD level (60.50). The incidence of scab was found 2.50%, 2.75%, 3.25% and 3.75% in potato tubers at 15, 30, 45 and 60% MAD level, respectively indicating that the incidence of disease increased slightly with increase in MAD level.

scholarly journals Water and Nitrogen Productivity of Potato Growth in Desert Areas under Low-Discharge Drip Irrigation

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 970 ◽  
Author(s):  
Pavel Trifonov ◽  
Naftali Lazarovitch ◽  
Gilboa Arye
Keyword(s):  
Drip Irrigation ◽  
Driving Forces ◽  
Root Zone ◽  
Agricultural Soils ◽  
Potato Crop ◽  
Water Productivity ◽  
Potato Production ◽  
N Leaching ◽  
Limiting Factor ◽  
Potato Growth

Narrow profit margins, resource conservation issues and environmental concerns are the main driving forces to improve fertilizer uptake, especially for potatoes. Potatoes are a high value crop with a shallow, inefficient root system and high fertilizer rate requirements. Of all essential nutrients, nitrogen (N) is often limiting to potato production. A major concern in potato production is to minimize N leaching from the root zone. Therefore, the main objective of this study was to examine the potato crop characteristics under drip irrigation with low-discharge (0.6 L h−1) and to determine the optimal combination of irrigation (40, 60, 80, and 100%) and fertigation (0, 50, and 100%) doses. In this study, the 80% (438.6 mm) irrigation dose and a 50% (50 mg N L−1) fertigation dose (W80%F50%) showed that these doses are sufficient for optimal potato yield (about 40 ton ha−1) in conjunction with water and fertilizer savings. Moreover, this treatment did not exhibit any qualitative changes in the potato tuber compared to the 100% treatments. When considering water productivity and yield, one may select a harsher irrigation regime if the available agricultural soils are not a limiting factor. Thus, higher yields can be obtained with lower irrigation and fertigation doses and a larger area.

scholarly journals Assessment of performance of potato crop under modified microclimates in rice based cropping system of Upper Brahmaputra valley zone of Assam

2021 ◽  
Vol 21 (3) ◽  
pp. 249-253
Author(s):  
M. PANGING ◽  
P. NEOG ◽  
R. L. DEKA ◽  
K. MEDHI
Keyword(s):  
Soil Moisture ◽  
Soil Temperature ◽  
Water Hyacinth ◽  
Tuber Yield ◽  
Growth Parameters ◽  
Potato Crop ◽  
Cropping System ◽  
Moisture Stress ◽  
Moisture Retention ◽  
Planting Dates

A field experiment was conducted during rabi, 2017-18 in Assam Agricultural University, Jorhat to identify appropriate adaptive strategies for combating ill effect of heat and moisture stress through modifying microclimate in rice-potato double cropping system. The potato variety – Kufri Jyoti was planted in split plot design with 3 dates starting from 10 November at 10 days interval (main plots) and three mulching treatments with water hyacinth, black polythene and without mulching (sub-plots) following recommended agronomic practices. The study revealed that there were 11.8 and 7.0 per cent increase in average soil moisture content under water hyacinth and black polythene, respectively as compared to non-mulched treatment. On the other hand, soil temperature was 0.5 to 1.5 °C (morning) and 1.1 to 2.3°C (evening) lower under water hyacinth, but 1.2 to 2.1°C (morning) and 1.7 to 2.6 (evening) higher underblack polythene as compared to non-mulched crop. In all planting dates, crop growth parameters like LAI and biomass production were observed to be highest under water hyacinth, followed by black polythene and without mulching. Among the mulching treatment the highest and lowest tuber yield was recorded under water hyacinth (120.81 q ha-1) and non-mulched treatment (85.0 q ha-1), respectively in all planting dates.It was found that the tuber yield was significantly and positively correlated (at 5% level) with theaverage soil moisture retention (mm) in upper 30 cm layer of soil during tuber formation to physiological maturity (r =77*). Increase in tuber yield (up to 42.2%) under water hyacintheven in case of late plantings (beyond 10 November) was probably due to increase insoil moisture retention (8.1 to 15.7 %) and reduction of soil temperature (1 to 1.8°C) under water hyacinthwhich endowed with favorablehydrothermal environment as compared to that under black polythene and non mulched treatment. 

scholarly journals Effect of irrigation on the yield and scab infection of potato

1970 ◽  
Vol 34 (4) ◽  
pp. 683-692
Author(s):  
MS Islam ◽  
MM Hossain ◽  
Md Shariful Islam ◽  
MA Hossain
Keyword(s):  
Soil Moisture ◽  
Key Words ◽  
Potato Variety ◽  
Water Application ◽  
Potato Tubers ◽  
Irrigation Interval

An experiment was conducted in Jamalpur during the Rabi seasons of 2004-2005 and 2005-2006 to investigate the yield and scab infection of potato variety Diamant under different irrigation frequencies and quantities. Three irrigation intervals, 7, 12 and 17 days along with three levels of water quantities equaling 50, 100 and 150% of depleted soil moisture were tested for yield and scab infection of potato tubers. It was observed in 2004-2005 that irrigation interval of 12 days and watering at 100% depletion of soil moisture produced the highest fresh and total yields of 24.64 t/ha and 27.56 t/ha, respectively, whereas irrigation interval of 7 days and watering at 150% of depleted soil moisture produced the lowest fresh and total yields (21.68 t/ha and 25.98 t/ha, respectively). In 2005-2006, irrigation interval of 12 days and watering at 100% depletion of soil moisture produced the fresh and total yields of 26.27 t/ha and 27.41 t/ha, respectively, and were not found statistically different from those obtained under water application of 150% depleted soil moisture and irrigation interval of 12 days. The scab infected tubers were found the highest 4.30 t/ha in 2004-2005 and 2.97 t/ha in 2005-2006 for water application of 150% depleted soil moisture and 7 days irrigation intervals. This indicates that scab disease is more susceptible to frequent and over irrigation. Key Words: Irrigation interval; moisture depletion; scab disease.  DOI: 10.3329/bjar.v34i4.5843Bangladesh J. Agril. Res. 34(4) : 683-692, December 2009

Soil moisture distribution under trickle irrigation: a review

2020 ◽  
Vol 20 (3) ◽  
pp. 761-772 ◽  
Author(s):  
Arpna Bajpai ◽  
Arun Kaushal
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Moisture Distribution ◽  
Soil Conditions ◽  
Initial Water Content ◽  
Water Application ◽  
Trickle Irrigation ◽  
Irrigation Systems ◽  
Application Rates ◽  
Soil Moisture Distribution

Abstract The wetting pattern of soil under trickle (drip) irrigation is governed by soil texture, structure, initial water content, emitter spacing, discharge rate and irrigation frequency. For efficient management of trickle irrigation moisture distribution plays an important role. The degree of soil wetted volume in an irrigation system determines the amount of water required to wet the root zone. This article helps in understanding moisture distribution for different lateral spacing, emitter spacing, emitter discharge rates and drip line installation depth for trickle irrigation under various soil conditions all over the world. This review reveals that soil moisture distribution and uniformity within the soil profile were affected by the distance between emitters rather than the distance between drip lines. In drip irrigation systems, the less the dripper spacing, the greater the moisture distribution as well as water use efficiency and crop yield. The radial spread of moisture was greater at lower water application rates, whereas the vertical spread was greater at higher water application rates. The vertical movement of soil moisture was greater than the horizontal movement under surface as well as subsurface drip irrigation systems. Deeper drip tape installations had a potential risk of not providing moisture to shallow rooted crops.

The interactions of water and fertilizer nitrogen in effects on growth pattern and yield of potatoes

1978 ◽  
Vol 91 (1) ◽  
pp. 161-172 ◽  
Author(s):  
B. J. Clutterbuck ◽  
K. Simpson
Keyword(s):  
Soil Moisture ◽  
Field Experiments ◽  
Tuber Yield ◽  
Potato Crop ◽  
Nitrogen Application ◽  
Fertilizer Nitrogen ◽  
High Soil Moisture ◽  
Leaf Area Duration ◽  
Normal Rainfall ◽  
Made In

SummaryThree field experiments in 2 years were made in S.E. Scotland to investigate the effect of water (normal rainfall or irrigation to maintain soil moisture tension between pF 2·0 and 2·5) on the response of the potato crop to nitrogen fertilizer (0, 100, 200 or 300 kg N/ha).Final tuber yield was closely related to leaf area duration. Addition of water reduced the delay in early haulm growth resulting from fertilizer nitrogen application. The beneficial effect of reducing moisture tension could not be related to water per se, nitrate, ammonium or conductivity levels in the fertilizer band or nitrogen uptake. Accumulation of nitrate in the roots and stems + petioles early in the season indicated that the rate of protein synthesis was reduced at high soil moisture tension in the presence of fertilizer nitrogen.In a long growing season (1971, 153 days) there was a significant response of tuber yield to nitrogen, with an increase in yield even at the highest rate tested (300 kg N/ha) and irrigation enhanced this response.In a normal season (1970, ca.130 days) there was a significant irrigation x nitrogen interaction on tuber yield. Irrigation increased the optimum rate of nitrogen from 100 to 200 kg N/ha in one experiment and from nil to 200 kg N/ha in another.Addition of water increased the number of tubers at harvest but the effect of nitrogen was less consistent. Yield increases resulting from application of nitrogen or reduction in soil moisture tension were mainly due to increases in the proportion of large tubers.

scholarly journals Penerapan Irigasi Tetes Emiter Tali Dengan Bebagai Selang Waktu Irigasi Pada Tanaman Semangka

2020 ◽  
Vol 19 (2) ◽  
pp. 128
Author(s):  
Muhammad Idrus Idrus ◽  
Surya Surya
Keyword(s):  
Soil Moisture ◽  
Irrigation Water ◽  
Drip Irrigation ◽  
Root Zone ◽  
Block Design ◽  
Water Productivity ◽  
Good Time ◽  
Time Interval ◽  
Irrigation Interval ◽  
Irrigation Water Productivity

The objectives of the research were (1) To know watermelon yield and irrigation water productivity of watermelon by used drip irrigation with nylon rope emitter on various time irrigation intervals, (2) To determined the good time irrigation interval for watermelon production by using the drip irrigation with nylon rope emitter. The research was conducted at the research field with four-time irrigation intervals were 1,2,3, and 4 days of time irrigation interval. The research was arranged in Completely Randomized Block Design. The result of the research showed that the time irrigation interval was not significantly affected yield and irrigation water productivity of watermelon. The soil moisture in the root zone at 30 cm depth of 23,23—23,88% before irrigation still in range of the available soil moisture content for plants. The average of watermelon yield and irrigation water productivity of watermelon were 5,07—5,45 kg/plant and 115,15—123,79 kg/m3. The good time interval of irrigation for watermelon production by using drip irrigation with rope emitter was 4 days time interval of irrigation.

scholarly journals Estimating water application efficiency for drip irrigation emitter patterns on banana

2009 ◽  
Vol 44 (7) ◽  
pp. 730-737 ◽  
Author(s):  
Alisson Jadavi Pereira da Silva ◽  
Eugênio Ferreira Coelho ◽  
Jarbas Honorio de Miranda ◽  
Stephen Ray Workman
Keyword(s):  
Soil Moisture ◽  
Lateral Line ◽  
Drip Irrigation ◽  
Water Distribution ◽  
Production Cycle ◽  
Water Application ◽  
Application Efficiency ◽  
Musa Sp ◽  
Water Application Efficiency ◽  
Drip Irrigation Emitter

The objective of this work was to evaluate root and water distribution in irrigated banana (Musa sp.), in order to determine the water application efficiency for different drip irrigation emitter patterns. Three drip emitter patterns were studied: two 4-L h-1 emitters per plant (T1), four 4-L h-1 emitters per plant (T2), and five 4-L h-1 emitters per plant (T3). The emitters were placed in a lateral line. In the treatment T3, the emitters formed a continuous strip. The cultivated area used was planted with banana cultivar BRS Tropical, with a 3-m spacing between rows and a 2.5-m spacing between plants. Soil moisture and root length data were collected during the first production cycle at five radial distances and depths, in a 0.20x0.20 m vertical grid. The experiment was carried out in a sandy clay loam Xanthic Hapludox. Soil moisture data were collected every 10 min for a period of five days using TDR probes. Water application efficiency was of 83, 88 and 92% for the systems with two, four and five emitters per plant, respectively. It was verified that an increase in the number of emitters in the lateral line promoted better root distribution, higher water extraction, and less deep percolation losses.

Sign in / Sign up

Export Citation Format

Share Document