Effects of drip irrigation methods on yield and water productivity of maize in Northwest China

2022 ◽  
Vol 259 ◽  
pp. 107227
Author(s):  
Yuxin Cao ◽  
Huanjie Cai ◽  
Shikun Sun ◽  
Xiaobo Gu ◽  
Qing Mu ◽  
...  
2017 ◽  
Vol 9 (2) ◽  
pp. 399-409 ◽  
Author(s):  
Hussein M. Al-Ghobari ◽  
Ahmed Z. Dewidar

AbstractAn in-situ field study on two types of irrigation methods and three irrigation regimes was conducted in a sandy loam soil located at King Saud University, Riyadh, Saudi Arabia in 2015 and 2016. The study was to assess the effects of different irrigation methods on physiological and yield responses of tomato crops under water shortage conditions. The tested irrigation methods were surface drip irrigation (SDI) and subsurface drip irrigation (SSDI) systems. Irrigation treatments consisted of three strategies: (1) plants were irrigated with a water depth of 100% of the full irrigation supply; (2) plants were irrigated with a water depth of 80% of the full irrigation supply; and (3) plants were irrigated with a water depth of 60% of the full irrigation supply. Results indicated that water shortage significantly affected yield and quality response for each season. Over a 2-year average, yield increase was greatest in T1-SSDI followed by T2-SSDI and then T1-SDI. The yield response factor was 0.95 and 1.05 for SSDI and SDI, respectively. The highest water use efficiency values were obtained in T2-SSDI (16.3 kg m−3) and T1-SSDI (15.6 kg m−3), and the lowest ones, those estimated in T1-SDI (10.9 kg m−3) and T3-SDI (9.5 kg m−3).


Author(s):  
P R Kumar ◽  
Santosh S Mali ◽  
A K Singh ◽  
B P Bhatt

An experiment was conducted to test the efficacy of irrigation methods and mulching in seed production of chickpea. Irrigation methods included drip with mulch (DM), drip without mulch (DNM) and check basin (CB) irrigation. Drip irrigation was scheduled at 1-day, 2-day and 7 days interval, while farmers’ practice of check basin irrigation at 7-day interval was considered as control. Plant parameters like height, horizontal spread, dry matter, root length and root spread, and number of pods were significantly influenced by irrigation levels and mulch. Seed yield of 17.7 and 16.8 q/ha was recorded for DM having 1-day and 2-day interval, respectively, which was about 82 and 73% higher over the control. The harvest index increased with increasing irrigation interval and was highest (57.4) under treatments with longer irrigation interval (DM7, DNM7 and CB7). Drip irrigation at 1-day and 2-day interval recorded the water productivities of 0.54 and 0.52 kg/m3, respectively as against 0.30 kg/m3 recorded in farmers practice. Polythene mulch with drip irrigation at 2-day irrigation interval is recommended for improving the yields and water productivity of chickpea cultivated under eastern plateau and hill region of India.


Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1532
Author(s):  
Zeyi Wang ◽  
Hengjia Zhang ◽  
Yucai Wang ◽  
Chenli Zhou

Limited water resources and low water productivity limit the sustainable development of agriculture in northwest China. In this study, drip irrigation under plastic film was used to achieve an optimal water deficit irrigation (WDI) scheme for the cultivation of indigowoad root (Isatis tinctoria L.). Field water control experiments were conducted in 2016 and 2017. Evaluation of WDI schemes was carried out by considering five indices: water consumption, yield, water use efficiency (WUE), indigo, and (R,S)-goitrin. To enhance the reliability of results, the analytic hierarchy process (AHP) and entropy weight method (EWM) were adopted to calculate the combined weight of the evaluation index. Finally, an improved technique for order of preference by similarity to ideal solution (TOPSIS) that integrated AHP–EWM weights was used to construct a unified, comprehensive evaluation model of indigowoad root under mulched drip irrigation that would produce high yield while saving water. The evaluation results indicated that mild WD (specifically, the V1G1 treatment) was continuously exerted during the vegetative and fleshy root growth periods, which enhanced the WUE and improved the quality of indigowoad root to a certain extent without significantly reducing the yield. These results provide a scientific basis for irrigation of indigowoad in northwest China and other areas with a similar environment.


Author(s):  
Kasa Mekonen Tiku ◽  
Shushay Hagoes ◽  
Berhane Yohanes

The study was carried out at the effect of drip and surface irrigation (Furrow irrigation) methods on onion and sesame crops from December 2011 to May 2012 in the Tigray region of Northwest Ethiopia. The objective was to evaluate the family drip irrigation system in comparison with furrow irrigation system in terms of irrigation water productivity (using 100% ETc for both commodities). The water saved in drip irrigation over furrow irrigation was found to be 33% for onion and sesame crops. The irrigation water productivity of onion was 0.9 kg/m3 and 0.55 kg/m3 under drip and furrow irrigation methods respectively. The irrigation water productivity of sesame was 0.14 kg/m3 and 0.045 kg/m3 under drip and furrow irrigation methods respectively.


Author(s):  
G Lal ◽  
R Singh ◽  
R S Metha ◽  
N K Meena ◽  
M K Choudhary ◽  
...  

The current study was carried out to investigate the effect of different irrigation methods with water level based on IW/CPE ratio on growth and seed yield of fenugreek during the rabi season of 2 consecutive years (2016-17) at ICAR-National Research Centre on Seed Spices (NRCSS), Tabiji, Ajmer, Rajasthan. This investigation consisted of four irrigation regimes (IW/CPE ratio viz 0.4, 0.6, 0.8 and 1.0) and three irrigation methods ie. (Micro sprinkler, Drip irrigation and Surface irrigation). The experiment was laid out in factorial randomized block design with four replications. Among the irrigation methods tested, drip and micro sprinkler system gave maximum irrigation efficiency and minimum yield loss than surface irrigation. Results showed that irrigation regimes 0.6 IW/CPE ratio with drip irrigation gave superior seed yields (2049.80 kg ha-1) of fenugreek compared to other treatments. Total water applied was 321.96 mm by different irrigation methods. Water productivity and water use efficiency was found highest in 0.4 IW/CPE ratio followed by 0.6 IW/CPE ratio from the finding of the investigation. It was inferred that farmers were over irrigating their farms without equivalent returns. The water saved through use of optimized irrigation method and level can be used more profitably to irrigate supplemental lands, thus achieving a more efficient and rational use of land and water resources.


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.


Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1640 ◽  
Author(s):  
Li-Li Zhao ◽  
Lu-Sheng Li ◽  
Huan-Jie Cai ◽  
Xiao-Hu Shi ◽  
Chao Zhang

Organic amendments improve general soil conditions and stabilize crop production, but their effects on the soil hydrothermal regime, root distribution, and their contributions to water productivity (WP) of maize have not been fully studied. A two-year field experiment was conducted to investigate the impacts of organic amendments on soil temperature, water storage depletion (SWSD), root distribution, grain yield, and the WP of summer maize (Zea mays L.) in the Guanzhong Plain of Northwest China. The control treatment (CO) applied mineral fertilizer without amendments, and the three amended treatments applied mineral fertilizer with 20 Mg ha−1 of wheat straw (MWS), farmyard manure (MFM), and bioorganic fertilizer (MBF), respectively. Organic amendments decreased SWSD compared to CO, and the lowest value was obtained in MBF, followed by MWS and MFM. Meanwhile, the lowest mean topsoil (0–10 cm) temperature was registered in MWS. Compared to CO, organic amendments generally improved the root length density (RLD) and root weight density (RWD) of maize. MBF showed the highest RLD across the whole soil profile, while MWS yielded the greatest RWD to 20 cm soil depth. Consequently, organic amendments increased grain yield by 9.9–40.3% and WP by 8.6–47.1% compared to CO, and the best performance was attained in MWS and MBF. We suggest that MWS and MBF can benefit the maize agriculture in semi-arid regions for higher yield, and WP through regulating soil hydrothermal conditions and improving root growth.


Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 970 ◽  
Author(s):  
Pavel Trifonov ◽  
Naftali Lazarovitch ◽  
Gilboa Arye

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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