Effects of narrow plant spacing on root distribution and physiological nitrogen use efficiency in summer maize

Jiang, Wenshun; Kongjun, Wang; Wu, Qiulan; Dong, Shuting; Liu, Peng; Zhang, Jiwang

doi:10.1016/j.cj.2013.07.011

Cited by 62 publications

(39 citation statements)

References 21 publications

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“…would lead to a substantial reduction in root activity (Casper & Jackson, 1997;Jiang et al, 2013). This explains why the root growth for all seedlings was much more localised in test S60 than in test S180 where seedling competition was less intense (Fig.…”

Section: Effects Of Planting Density On Tree Growth and Soil Suctionmentioning

confidence: 90%

Effects of planting density on tree growth and induced soil suction

Leung

et al. 2016

Géotechnique

114

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Plant evapotranspiration is recognised to affect soil suction of slopes and landfill covers. Previous work has focused on evapotranspiration-induced suction by a single plant, with little attention paid to the effects of planting density. The aim of this study is to quantify any changes in tree growth and tree-induced suction during evapotranspiration and rainfall under different planting densities for non-mixed-species plantations. A tree species, Schefflera heptaphylla, which is commonly found in Asia, was planted in silty sand at spacings of 60, 120 and 180 mm, representing three different planting densities. For each case, three replicates were tested to consider tree variability. In total, the responses of suction for 297 seedlings subjected to drying and a rainfall event with a 10-year return period were measured. The test results show that reducing the tree spacing from 180 to 60 mm induced greater tree-tree competition for water, as indicated by a 364% increase in peak suction upon evapotranspiration. Such tree-tree interaction led to: (a) a 19-35% reduction in the leaf area index; (b) a 17-36% decrease in root length; and (c) an obvious decay of roots. Upon the rainfall event, the infiltration rate for vegetated soil with trees planted at a spacing of 60 mm was up to 247% higher than those for soil with a wider tree spacing, where mainly fresh roots were found. Although most suction within the root zone (i.e. top 100 mm) was lost due to increased infiltration at 60 mm spacing, suctions in deeper depths below root zone were largely preserved.

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Section: Effects Of Planting Density On Tree Growth and Soil Suctionmentioning

confidence: 90%

Effects of planting density on tree growth and induced soil suction

Leung

et al. 2016

Géotechnique

114

View full text Add to dashboard Cite

show abstract

“…This data counterfactual trend was due to that, maize was sown in hills spaced 30 cm and plants were thinned to two plants per hill in the intercropping treatments which is considered duplicate number of plants in hills compared with solid maize. This duplicate density in each hill caused a reductive activity of maize roots in all soil layers and significantly decreased dry weights of shallow roots, resulting in lower root biomass and consequently lower competitive ability for maize with soybean especially below-ground competition (Jiang et al, 2013). However, Lv et al (2014) showed a greater contribution to intercrop advantages from below-ground interactions than above-ground interactions and reported that, competition for nutrients was more importance than competition Egypt.…”

Section: Effect Of Intercropping Patterns and Nitrogen Fertilizationmentioning

confidence: 99%

Effect of Two Patterns of Intercropping Soybean with Maize on Yield and Its Components under Different Nitrogen Fertilizer Levels

Rashwan

Zeneldin

2017

Egypt. J. Agron.

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TWO FIELD experiments were carried out at Zarzoura, Itay El-Baroud, Agricultural Research Station, El-Behaira Governorate, Agricultural Research Center (ARC), Egypt during 2014 and 2015 seasons to study the effects of three nitrogen fertilizer levels on yield and yield components under two intercropping soybean/maize patterns. The results indicated that, the highest ear length, ear diameter, No. of rows per ear, grain yield per ear (for maize), seed yield per fad (for soybean) and the better (the lowest) competitive ratio values were found with treatment intercropping patterns 2 maize: 4 soybean (CP2). While the highest grain yield per fad (for maize), No. of pods per plant, seed yield per plant (for soybean), total LER (land equivalent ratio), the percentage land saved, total AYL (actual yield loss) and WUE (water use efficiency) values were occurred under intercropping patterns 2 maize: 2 soybean (CP1).

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“…Hal ini dikarenakan jarak tanam yang lebar akan memberikan kerapatan yang lebar pula dengan jumlah tanaman yang sedikit. MenurutJiang et al (2013), penelitian yang membahas efek jarak tanam pada hasil, sebagian besar difokuskan pada peningkatan struktur kanopi di atas tanah yang menghasilkan pengingkatan laju fotosintesis melalui intersepsi efektif radiasi matahari. Didukung olehBiswas et al (2014) bahwa Jarak tanam memiliki pengaruh terhadap perkembangan kanopi yang akan mempengaruhi serapan cahaya matahari Wahyudin et al (2015).…”

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Jarak Tanam Berbeda pada Uji Daya Hasil Lima Varietas Jagung Hibrida

2018

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<p>Maize (Zea mays L.) is the second most important cereal crop of Indonesia after rice. The productivity of corn in Central Java province in 2015 was increased that considered as relatively low. Maize productivitiy needs to be improved to supply the requirement of people through of plant spacing and use the hybrid maize varieties. The aims of study was to determine the effectiveness level of plant spacing, to test the best hybrid maize varieties, and test the combination of two treatments to optimize the yield potential hybrid maize. This study has been conducted from June until October 2017, at Desa Srimartani, Kecamatan Piyungan, Kabupaten Bantul, Daerah Istimewa Yogyakarta. This study was arranged in Split Plot Design consisting of two factors that have been researched, varieties (ABCD, EFGH, NK6172, P27 and DK77) and plant spacing (70 x 20 cm, 75 x 20 cm, and 75 x 25 cm). The results show that treatment of varieties mostly can increase all of variable analysis but there is no interaction on both treatment except plant height, fresh and dry biomass weight. Variable of plant height, tasseling and silking, cob weight with husk, cob weight without husk, kernel seeds weight per plot, 100 seeds weight, yields per hectare show that the highest average is variety of P27. While treatment of plant spacing has no effect because the interval between treatments plant spacing is too close therefore it shows insignificantly different result. The highest dry kernel product on variety treatment P27 (8,82 ton ha-1), followed by DK77 (8,53 ton ha-1), ABCD (8,50 ton ha1), NK6172 (8,34 ton ha-1), and EFGH (7,13 ton ha-1).</p>

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Effects of narrow plant spacing on root distribution and physiological nitrogen use efficiency in summer maize

Cited by 62 publications

References 21 publications

Effects of planting density on tree growth and induced soil suction

Effects of planting density on tree growth and induced soil suction

Effect of Two Patterns of Intercropping Soybean with Maize on Yield and Its Components under Different Nitrogen Fertilizer Levels

Jarak Tanam Berbeda pada Uji Daya Hasil Lima Varietas Jagung Hibrida

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