scholarly journals DRIP FERTIGATION REGIME FOR POTATO ON SANDY SOIL

2017 ◽  
pp. 476 ◽  
Author(s):  
Zhiwen Feng ◽  
Shuqin Wan ◽  
Yaohu Kang ◽  
Shiping Liu
Keyword(s):  
Sandy Soil ◽  
Solanum Tuberosum L ◽  
Water Productivity ◽  
Nutrient Balance ◽  
Potato Production ◽  
High Yield ◽  
Soil Matric Potential ◽  
Matric Potential ◽  
Irrigation Interval ◽  
Drip Fertigation

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.

scholarly journals Uji Daya Hasil Klon Harapan Kentang (Solanum tuberosum L.) IPB di Kabupaten Garut Jawa Barat

2017 ◽  
Vol 1 (1) ◽  
pp. 42
Author(s):  
Dicky Hasian Zulkarnain ◽  
Awang Maharijaya ◽  
Muhamad Syukur
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Potato Production ◽  
Potato Chips ◽  
High Yield ◽  
Planting Material ◽  
National Potato ◽  
Randomized Design ◽  
High Production ◽  
Completely Randomized Design

Potatoes (Solanum tuberosum L.) highly consumed in the form of vegetable and processed potato so that the needs of potatoes have not been fulfilled by domestic production. One effort to increase national potato production is to assemble high-yield varieties of potato. This study aimed to test the production of several IPB potato promising clones. This research was conducted in Garut, West Java in May to August 2016. This research used Completely Randomized Design with clone as the factor and repetition as many as three replications as the group. The planting material used was IPB Potato promising clones which consisted of PKHT 2, PKHT 4, PKHT 6, PKHT 9, and PKHT 10 and Granola and Atlantik as the comparison. The results showed that PKHT 4, PKHT 6, PKHT 9, and PKHT 10 are IPB potato promising clones that have high production equivalent to Granola and higher than Atlantik as commercial varieties. Based on physical criteria PKHT 4 and PKHT 6 suitable to be processed potato chips and PKHT 9 and PKHT 10 suitable to be vegetable potato.Keywords: atlantic, granola, potato as vegetable, processed potato

Developing soil matric potential based irrigation strategies of direct seeded rice for improving yield and water productivity

2019 ◽  
Vol 215 ◽  
pp. 8-15 ◽  
Author(s):  
Satyendra Kumar ◽  
Bhaskar Narjary ◽  
Kapil Kumar ◽  
H.S. Jat ◽  
S.K. Kamra ◽  
...  
Keyword(s):  
Water Productivity ◽  
Soil Matric Potential ◽  
Matric Potential ◽  
Direct Seeded

scholarly journals The Effect of Different Irrigation Interval on Tuber Yield and Quality of Potato (Solanum tuberosum L.)

2018 ◽  
Vol 3 (2) ◽  
pp. 27-31 ◽  
Author(s):  
Salah Abdulla Salih ◽  
Farhan Ahmad Abdulrahman ◽  
Yonis Abdulla Mahmood
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Starch Content ◽  
High Yield ◽  
Yield And Quality ◽  
Irrigation Interval ◽  
Significant Difference ◽  
The Impact

Gaining high yield of potato is very crucial for farmer and quality also has a great impact on their production. Beside the quality and yield using the amount of irrigation also important to reduce water lose. The tuber yield and quality of potato (Solanum tuberosum L.) is impacted by irrigated water. This study was carried out in two respectively season (2017 and 2018) in Halabja province of Kurdistan regional of Iraq to evaluate the impact of irrigation interval on quality and tuber yield in potato cultivars. In this study there are  four irrigation intervals (3,5,7 and 9 days) used by furrow irrigation method which subjected in complete randomized design (CRD) with three replications. The potato tuber production in 3 day interval showed highest percentage also protein and starch content was recorded highest in both year of cultivation, but the abscisic acid was affected by more irrigation which in 3 day interval irrigation the rate was less than other. Also in 5 day interval irrigation the rate was acceptable because there is no significant difference in terms of tuber yield, protein and starch content if compare with 3 day interval irrigation in particular for those area faced restricted in using water irrigation.

Irrigation scheduling and water requirements for cowpea using evaporation pan at middle of Iraq

1970 ◽  
pp. 13-17
Author(s):  
Saifuldeen A. Salim ◽  
Isam Kudhier Hamza ◽  
Laith Farhan Jar
Keyword(s):  
Water Productivity ◽  
Irrigation Treatment ◽  
Growing Season ◽  
Irrigation Scheduling ◽  
Water Requirements ◽  
Applied Water ◽  
Fresh Seed ◽  
Irrigation Interval ◽  
Biological Yield ◽  
Evaporation Pan

The present study was conducted to find out the water requirements and most suitable irrigation frequencies for cowpea (Vigna unguiculata L.) var grown under drip irrigation. The treatments were based on the IW:CPE ratio at different empirical pan factors 0.6 , 0.8, 1.0, 1.,1.4 , and 1.6 Ef (where Ef = IW/CPE). It was observed that the irrigation interval was variable values decreased by increasing Ef value and with the progress of the growing season. The 1.2 and 1.0 IW: CPE treatments with approximately 4 days irrigation interval were achieved the best results. The total amount of applied water during Cowpea growing season was varied between 247.7 and 266.5mm with 254.8mm as a mean. Irrigation treatment with Ef1.2 was superior over the rest of other treatments in fresh seed yield (5.13 ton.hec.-1), crop water productivity (2.14 kg.m-3), biological yield (6.88 ton.hec.-1) , fresh pod yield (7.33 ton.hec.-1), weight of 100 seed (31.28gm), number of seed/pod (9.34) and netting percentage (37.1). The lowest values of the most parameters used in this study were obtained by Ef 0.6 irrigation treatment.  

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.

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