Determining optimum applied water and seeding rates for winter wheat by using AquaCrop and mathematical‐economic analysis*

Moghimi, Mohammad Mehdi; Shamshiri, Ghazaleh; Shabani, Ali; Kamgar-Haghighi, Ali Akbar; Fateh, Mina; Mahmoudi, Mohammad Reza

doi:10.1002/ird.2657

Cited by 8 publications

(2 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For 2016-2018 absolutely dry weight of 100 plants of winter wheat exceeded the weight of plants from crops after spring barley by 53-55% when sowing on September 5 and by 39-40% when sowing 15 October [19]. The difference was: with early sowing (September 5) 33-40%, with late sowing (October 15) 17-27% [20].…”

Section: Resultsmentioning

confidence: 94%

Influence of cultivation technology on the yield of winter wheat

Syromyatnikov,

Semenenko,

Orekhovskaya

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

A comprehensive study has been carried out on the influence of technological methods of growing winter wheat on the process of formation of the above-ground mass of plants in the conditions of the forest-steppe of Ukraine. Crop rotation was carried out with two predecessors: black fallow and spring barley at a seeding rate of 3 and 5 million viable seeds/hectare. Evaluation of the intensity of plant development in the initial period of vegetation (measurement of absolutely dry weight of 100 plants 15 and 30 days after the emergence of full seedlings) was recorded in winter wheat plants in black fallow crops. The largest above-ground mass of the plant was formed 30 days after the emergence of full seedlings. A direct correlation was established between the amount of productive moisture in the soil layer of 0-25 cm and the period of emergence of winter wheat seedlings. The highest level of winter wheat yield was obtained for black fallow 3.46 t/ hectare when sown in the second decade of October.

show abstract

Section: Resultsmentioning

confidence: 94%

Influence of cultivation technology on the yield of winter wheat

Syromyatnikov,

Semenenko,

Orekhovskaya

et al. 2023

E3S Web of Conf.

View full text Add to dashboard Cite

show abstract

“…In cultivation practice, reasonable population structure can alleviate the contradiction between population and individual, coordinate the relationship among yield components, improve the canopy structure to ensure the full use of light energy, and ultimately achieve high yield [4]. Previous studies indicated that a reasonable high-yield population structure could be constructed by adjusting the basic seedling density, nitrogen fertilizer management, or a combination of the two [5,6].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Agronomic Mechanisms Involved in ‘Source–Sink’ Relationship in the High-Yield Population of Weak-Gluten Wheat

et al. 2022

View full text Add to dashboard Cite

In order to provide a theoretical basis and technical approach for the construction and regulation of medium- and high-yield population cultivation practice of wheat after rice, agronomic and physiological characteristics in medium-high yielding populations were investigated by setting different basic seedlings and cutting leaves and ears with isotope tracing method in week-gluten wheat (Ningmai 29). The results showed that the medium-high yield (yield above 7500 kg/km2) group could be achieved at medium densities (150 × 104/hm2 and 225 × 104/hm2), whose populations own suitable number of spikes, higher grain number per spike and thousand-grain weight (the larger and stronger ‘sink’). Meanwhile, these two medium-high yielding populations had higher leaf area index and suitable light-transmission rate after anthesis; thus, the leaf net photosynthetic rate after anthesis was higher, and the capacity of carbon assimilates was stronger. From the 15N test, it can be seen that the relationship between individuals in the medium-high yielding population (medium-density) is more harmonious, and the plant had higher nitrogen utilization efficiency. More nitrogen is concentrated in the spike at maturity. The results of the 13C pot trials showed that the top-three functional leaves had a higher capacity for source-production, which was also the main source of post-flowering assimilates. Increasing their area to improve the ‘source–sink’ ratio would help coordinate the ‘source–sink’ relationship in the group with a stronger ‘sink’. The main technical approach is to increase the area and duration of the upper-three functional leaves after anthesis on the basis of a larger sink, thus ensuring a higher source–sink ratio and a harmonious ‘source–sink’ relationship after flowering.

show abstract

Winter wheat source‐sink relationships under various planting modes, complementary irrigation, and planting densities

Dai,

Liao,

Pei

et al. 2024

Agronomy Journal

View full text Add to dashboard Cite

Various agronomic practices can affect the processes of aboveground dry matter accumulation (source) and grain filling (sink), resulting in yield differences. Improved source‐sink relationships can facilitate the production and accumulation of assimilates to increase the productivity of winter wheat (Triticum aestivum L.). A two‐season field experiment was undertaken on winter wheat during 2020–2021 and 2021–2022. In a split‐split‐plot design with three replicates (randomized blocks), we compared two planting modes (ridge‐furrow planting with plastic mulching [RFPM]; traditional flat planting [TF]), two complementary irrigation levels (I30+30: 30+30 mm; I0: no irrigation), and three planting densities (D1, D2, and D3: 240, 360, and 480 plants m−2). The results showed that RFPMI30+30 significantly increased maximum yield by 28.5% compared with TFI0. Although D3 increased the number of effective spikes per unit area and duration of grain filling compared to D2, it reduced the number of grains per spike, 1000‐grain weight, and average filling rate. Compared to TF and I0, RFPM and I30+30 improved the sink/source ratio by 5.3% and 6.5%, respectively. Grain yield peaked at D2 in the RFPM and at D3 in the TF. Medium planting density (D2) and complementary irrigation (I30+30) during the wintering and reviving periods under RFPM can achieve better source‐sink balance relationships and the maximum grain yield of winter wheat. Overall, we believe that in most cases, wheat yields are source‐limited and can be improved by ridge‐furrow planting with plastic mulching, complementary irrigation, and planting density regulation.

show abstract

Determining optimum applied water and seeding rates for winter wheat by using AquaCrop and mathematical‐economic analysis*

Cited by 8 publications

References 46 publications

Influence of cultivation technology on the yield of winter wheat

Influence of cultivation technology on the yield of winter wheat

Physiological and Agronomic Mechanisms Involved in ‘Source–Sink’ Relationship in the High-Yield Population of Weak-Gluten Wheat

Winter wheat source‐sink relationships under various planting modes, complementary irrigation, and planting densities

Contact Info

Product

Resources

About