Effect of methods of irrigation and sulphur nutrition on seed yield, economic and bio-physical water productivity of two sunflower (Helianthus annuus L.) hybrids

Sahoo, Priyanka; Brar, A. S.; Sharma, Sanjula

doi:10.1016/j.agwat.2018.05.009

Cited by 26 publications

(15 citation statements)

References 10 publications

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“…All treatment combinations recorded significantly higher seed yield as compared to absolute control except 60% of CPE and 60% RDF. The results were also endorsed by the findings of Sinha et al, (2017) and Sahoo et al, (2018).…”

Section: Seed Yieldsupporting

confidence: 55%

Phenological behaviour of gobhi sarson (Brassica napus L.) and thermal indices as influenced by drip irrigation and fertigation schedules under semi-arid subtropical condition of Punjab

Sharma¹,

Kumar²,

Brar³

et al. 2021

J. Agrometeorol.

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A field experiment was conducted during rabi 2016-17 and 2017-18, at the Research Farm of Department of Agronomy, Punjab Agricultural University, Ludhiana, to study the phenological behaviour of gobhi sarson (Brassicanapus L.) and thermal indices as influenced by drip irrigation (60, 80 and 100% of cumulative pan-evaporation, CPE) and fertigation schedules (60, 80 and 100 % recommended dose of fertilizers, RDF) in comparison with conventional flood irrigation and manual application of fertilizers i.e. absolute control. The pooled data revealed that Brassica irrigated through drip at 100 % of CPE took maximum number of days to attain 50% flowering, 50% siliqua formation and physiological maturity, followed by 80 and 60% of CPE. Higher fertigation levels also delayed the number of days taken to attain various phenological stages. Maximum seed yield was observed at 100% of CPE with 100% RDF which was statistically at par with 100% of CPE with 80% RDF and 80% of CPE with 80 or 100% RDF, but significantly higher than absolute control. Maximum accumulation of heat units along with heat use efficiency (1.49 kg grains ha-1 °C day hour-1) was also obtained at 100% of CPE with 100% RDF.

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Section: Seed Yieldsupporting

confidence: 55%

Phenological behaviour of gobhi sarson (Brassica napus L.) and thermal indices as influenced by drip irrigation and fertigation schedules under semi-arid subtropical condition of Punjab

Sharma¹,

Kumar²,

Brar³

et al. 2021

J. Agrometeorol.

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“…Dibbling irrigation (seeding with irrigation to the seeds) is a traditional practice in NEC which is widely used in spring before maize sowing [38].Maize yield was highly correlated with the soil moisture content during planting date [47] and dibbling irrigation is an effective measure to adjust sowing soil moisture content. Therefore, dibbling irrigation can cope with drought by improving both water use efficiency and maize seeding emergence ratio [47,48]. Irrigation in summer and autumn can mitigate the negative effects of drought; the adoption of irrigation in summer and autumn led to maize yield increase by 419-435 and 444-463 kg/ha, respectively [38].…”

Section: Discussionmentioning

confidence: 99%

Thermal Time Requirements for Maize Growth in Northeast China and Their Effects on Yield and Water Supply under Climate Change Conditions

Cai

Zhang

et al. 2021

Water

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Northeast China (NEC) is a region sensitive to climate change. However, the adoption of long-season maize cultivars in NEC has caused a substantial yield increase under climate change conditions. It is important to determine whether such cultivar adoptions are effective throughout the whole NEC to sustainably increase grain yield. In this study, phenological observations and meteorological data at six sites from 1981 to 2018 were used to detect thermal time (TT) trends during the maize growing period. TT, as a parameter for measuring changes in maize cultivars, was used in the crop simulation model CERES-Maize to examine the variations in maize yield produced with different cultivar × climate combinations in different decades. In NEC, both TTs from emergence to anthesis and from anthesis to physiological maturity showed significant increasing trends from 1981 to 2018. Simulation results for humid areas revealed that adopting longer-season cultivars during 2000–2018 caused yield increases, ranging from 6.3% to 13.3%, compared with the 1980s. However, for stations in semi-humid areas, maize grain yield showed a decrease or a small increase (from −12.7% to 8.0%) when longer-season cultivars were adopted during 2000–2018. For semi-humid areas, decreasing trends in the ratios of rainfed yield to no water-stress yield (Yrainfed/Yno water-stress) and lower Yrainfed/Yno water-stress values during 2000–2018 indicated a growing sensitivity of maize production to water, which was attributed to changes in TT and precipitation. Our results indicate that, for the semi-humid area, maize yield was limited by water after introducing cultivars with higher TT requirement under climate change conditions. Therefore, securing food supplies will depend on increases in water-use efficiency levels and other adaptive strategies, such as varietal diversification, drought-resistant varieties, conservation tillage and irrigation.

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“…The S deficiency in oilseeds adversely impacts the seed yield and quality because it reduces the carbohydrates translocation to the reproductive parts and utilization for oil synthesis (Rani et al 2009;Sahoo et al 2018). In recent decades, reports on S deficiency have increased due to reduction in soil fertility status and organic matter content as a result of intensive agriculture and low S containing fertilizers as a result of strict sulphur dioxide emissions control (Eriksen 2009;Steinke et al 2015;Carciochi et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Can sulphur improve the nutrient uptake, partitioning, and seed yield of sesame?

et al. 2021

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Sulphur (S) is considered to improve the nutrient uptake of plants due to its synergistic relationship with other nutrients. This could ultimately enhance the seed yield of oilseed crops. However, there is limited quantitative information on nutrient uptake, distribution, and its associated impacts on seed yield of sesame under the S application. Thus, a two-year field study (2018 and 2019) was conducted to assess the impacts of different S treatments (S0 = Control, S20 = 20, S40 = 40, and S60 = 60 kg ha−1) on total dry matter production, nitrogen, phosphorus, potassium, S uptake and distribution at the mid-bloom stage and physiological maturity. Furthermore, treatment impacts were studied on the number of capsules per plant, number of seeds per capsule, thousand seed weight, and seed yield at physiological maturity in sesame. Compared to S0, over the years, treatment S40 significantly increased the total uptake of nitrogen, phosphorus, potassium, and S (by 13, 22, 11% and 16%, respectively) at physiological maturity, while their distribution by 13, 36, 14, and 24% (in leaves), 12, 15, 11, and 15% (in stems), 15, 42, 18, and 10% (in capsules), and 14, 22, 9, and 15% (in seeds), respectively. Enhanced nutrient uptake and distribution in treatment S40 improved the total biomass accumulation (by 28%) and distribution in leaves (by 34%), stems (by 27%), capsules (by 26%), and seeds (by 28%), at physiological maturity, as compared to S0. Treatment S40 increased the number of capsules per plant (by 13%), number of seeds per capsule (by 11%), and thousand seed weight (by 6%), compared to S0. Furthermore, over the years, relative to control, sesame under S40 had a higher seed yield by 28% and enhanced the net economic returns by 44%. Thus, our results suggest that optimum S level at the time of sowing improves the nutrient uptake and distribution during the plant lifecycle, which ultimately enhances total dry matter accumulation, seed yield, and net productivity of sesame.

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Effect of methods of irrigation and sulphur nutrition on seed yield, economic and bio-physical water productivity of two sunflower (Helianthus annuus L.) hybrids

Cited by 26 publications

References 10 publications

Phenological behaviour of gobhi sarson (Brassica napus L.) and thermal indices as influenced by drip irrigation and fertigation schedules under semi-arid subtropical condition of Punjab

Phenological behaviour of gobhi sarson (Brassica napus L.) and thermal indices as influenced by drip irrigation and fertigation schedules under semi-arid subtropical condition of Punjab

Thermal Time Requirements for Maize Growth in Northeast China and Their Effects on Yield and Water Supply under Climate Change Conditions

Can sulphur improve the nutrient uptake, partitioning, and seed yield of sesame?

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