Corn Hybrid Response to Planting Date in the Northern Corn Belt

Lauer, Joseph G.; Carter, Paul R.; Wood, Timothy M.; Diezel, G.; Wiersma, D.; Rand, R. E.; Mlynarek, M. J.

doi:10.2134/agronj1999.915834x

Cited by 123 publications

(129 citation statements)

References 8 publications

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“…Site-years planted between late April and mid-May yielded higher than site-years planted after mid-May (11.4 compared to 10.3 Mg ha -1 ). This is consistent with the results of Lauer et al (1999) who reported that grain corn yields decreased with later planting date. In our study, the increase in yield between the two groups of site-years could be explained by the planting date (Mullen et al, 2010), but other parameters such as soil types, hybrids and weather conditions may be involved (Almaraz et al, 2008;Ziadi et al, 2013;Tremblay et al, 2012;Woli et al, 2016).…”

Section: Site Id Yearsupporting

confidence: 93%

Variability in Corn Yield Response to Nitrogen Fertilizer in Eastern Canada

Kablan¹,

Chabot²,

Mailloux³

et al. 2017

Agronomy Journal

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Corn (Zea mays L.) yield response to N has been found to vary spatially within a field. The objective of this study was to examine how grain corn yield response to N varies with planting date, soil texture, and spring weather across sites and years in the Montérégie region. Trials were conducted from 2002 to 2004 and 2006 to 2010, at 11 sites with 23 hybrids and four N application rates, for a total of 45 site-years. Each site-year involved five or six N rates ranging from 80-90 to 240 kg N ha -1 . Grain yield response to N rates varied among site-years. Trials were separated into two groups based on optimal and late planting dates. Significant differences in grain yield among the applied N rates were observed in all of the site-years planted at optimal dates (from 8.8-14.7 Mg ha -1 ), and in most of those planted late (8.5-12.8 Mg ha -1 ). Economic optimum nitrogen rates (EONR) ranged less widely for site-years planted on optimal dates (180-237 kg N ha -1 ) than for those planted late (132-237 kg N ha -1 ). The EONR was affected by soil textural classes and rainfall. On coarse-textured soils, more N was needed to optimize grain yield in years with wet growing seasons. These results suggest that the current N recommendations for corn in Quebec should consider the variability in response associated with site-specific effects of planting date, soil texture, and weather.

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Section: Site Id Yearsupporting

confidence: 93%

Variability in Corn Yield Response to Nitrogen Fertilizer in Eastern Canada

Kablan¹,

Chabot²,

Mailloux³

et al. 2017

Agronomy Journal

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“…Moreover, delayed sowing increases the probability of early autumn freezing occurring at latter stages in maize growth, thereby restraining grain maturity and leading to output reduction [12,13]. Early planting with film mulching is regarded as an effective measure to increase production against the cold, because despite crop exposure to a low-temperature environment at the prophase, the growth point is not endangered; besides, no adverse effect was observed in middle-later stages, and maize can reach physiological maturity before early autumn freezing occurs [14,15].…”

mentioning

confidence: 99%

Effect of Planting Date on Accumulated Temperature and Maize Growth under Mulched Drip Irrigation in a Middle-Latitude Area with Frequent Chilling Injury

Wang

et al. 2017

Sustainability

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Given that chilling injury, which involves late spring cold and early autumn freezing, significantly affects maize growth in middle-latitude cold areas, a highly efficient cultivation technique combining suitable planting date (PD) and mulched drip irrigation is being studied to guarantee maize production. A field experiment for medium-mature variety "Xianyu 335" was conducted in 2015 to 2016 in Chifeng, Inner Mongolia, China, to explore the effects of PD on the active accumulated temperature (AAT) distribution and maize growth under mulched drip irrigation. Based on the dates (around May 1) of late spring cold occurring in the area, four PDs were designed, namely, April 20 (MD 1 ), May 2-3 (MD 2 ), May 12 (MD 3 ), and May 22 (MD 4 ), and a non-film mulching treatment (NM-D 2 ) was added on the second PD. Results indicated that: (1) the warming effect of film mulching effectively compensated for the lack of heat during the early stages of maize growth. Compared with that in NM-D 2 , the soil temperature under mulching in MD 2 for the sowing-emergence and seedling stage increased by 14.3% and 7.6%, respectively, promoting maize emergence 4 days earlier and presenting 5.6% and 9.7% increases in emergence rate and grain yield, respectively; (2) the AAT reduction caused by PD delay was mainly observed in reproductive stage, which reached 96.6 • C for every 10 days of PD delay in this stage; (3) PD markedly affected maize growth process and yield, which were closely related to the chilling injury. The late spring cold slowed down the emergence or jointing for maize (under MD 1 and MD 2 ), but brought insignificant adverse effect on maize later growth and grain yield (16.1 and 15.9 Mg·ha −1 , respectively). While the maize in both MD 3 and MD 4 treatments suffered from early autumn freezing damage at the anthesis-maturity stages, resulting in shortening in reproductive period by 4-8 days and decrease in grain yield by 11.4-17.3% compared with those in MD 1 and MD 2 ; and (4) taking the typical date (May 1) of late spring cold occurring as the starting point, the grain yield penalty reached 8.5% for every 10 days of PD delay; for every 100 • C of AAT decrease during reproductive stage, the grain yield decreased by 6.1%. The conclusions offer certain reference values for maize cultivation in the same latitude areas with similar ecological environments.

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“…Salah satu strategi untuk mengantisipasi ketidakpastian awal musim dan kejadian iklim ektrem adalah dengan menyesuaikan waktu tanam (Lauer et al 1999). Untuk mengatur waktu tanam dan panen, berbagai negara menggunakan kalender tanam (Sacks et al 2010;AMIS 2012).…”

Section: Kalender Tanamunclassified

Kriteria Awal Musim Tanam: Tinjauan Prediksi Waktu Tanam Padi Di Indonesia

Surmaini

Syahbuddin

2016

J. Litbang Pert.

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ABSTRAKKeragaman curah hujan yang tinggi secara spasial dan temporal akibat variabilitas iklim berpengaruh nyata terhadap produktivitas tanaman. Salah satu upaya yang efektif dan murah untuk menekan risiko terkait keragaman dan iklim ekstrem adalah menyesuaikan waktu tanam. Kriteria yang umum digunakan untuk menentukan awal musim tanam padi di Indonesia adalah awal musim hujan (MH), yaitu jika jumlah curah hujan > 50 mm dalam tiga dasarian berturutturut. Kriteria lain yang disarankan para pakar adalah jumlah curah hujan selama beberapa hari berturut-turut, yang tidak diikuti oleh beberapa hari kering berturut-turut dalam periode setelahnya. Namun, jumlah hari hujan dan hari kering berturut-turut bervariasi. Sistem informasi untuk penentuan waktu tanam padi di Indonesia adalah Kalender Tanam (Katam). Katam memberikan informasi estimasi awal waktu tanam, potensi luas tanam, rotasi tanaman, dan intensitas tanam pada tingkat kecamatan untuk setiap musim selama satu tahun. Penentuan waktu tanam pada Katam berdasarkan kriteria awal MH. Namun, pertumbuhan tanaman tidak hanya ditentukan oleh curah hujan pada waktu tanam, tetapi juga jumlah dan distribusi hujan selama periode tanam. Oleh karena itu, penentuan waktu tanam perlu pula mempertimbangkan distribusi curah hujan selama musim tanam. Kendala penerapan kriteria tersebut adalah belum tersedianya prediksi curah hujan harian 12 bulan ke depan yang diinformasikan 12 sebelumnya. Namun, dengan menggunakan Global Circulation Model, prediksi curah hujan harian pada musim tanam yang akan datang dapat diberikan tepat waktu. eras merupakan makanan pokok bagi sebagian besar penduduk Indonesia sehingga kebijakan pembangunan pertanian difokuskan pada upaya mencapai kemandirian pangan, terutama beras. Namun, upaya tersebut menghadapi berbagai kendala seperti meningkatnya laju konversi lahan pertanian dan melambatnya pencetakan lahan pertanian baru (Agus et al. 2006). Di lain pihak, meski teknologi pertanian berkembang pesat, penerapannya di tingkat petani berjalan lambat sehingga peningkatan produktivitas padi rata-rata hanya di bawah 1% atau 54 kg/ha/tahun (Agus 2007). Kendala lain adalah penurunan kualitas irigasi akibat degradasi jaringan irigasi (Sumaryanto 2006). Sekitar 60,41% lahan sawah merupakan sawah irigasi (BPS 2013), namun hanya lahan irigasi kelas satu yang sumber airnya terjamin. Kondisi jaringan irigasi yang kurang

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Corn Hybrid Response to Planting Date in the Northern Corn Belt

Cited by 123 publications

References 8 publications

Variability in Corn Yield Response to Nitrogen Fertilizer in Eastern Canada

Variability in Corn Yield Response to Nitrogen Fertilizer in Eastern Canada

Effect of Planting Date on Accumulated Temperature and Maize Growth under Mulched Drip Irrigation in a Middle-Latitude Area with Frequent Chilling Injury

Kriteria Awal Musim Tanam: Tinjauan Prediksi Waktu Tanam Padi Di Indonesia

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