Long-term drainage, subirrigation, and tile spacing effects on maize production
نویسندگان
چکیده
Flooding and drought are the most damaging abiotic stresses affecting maize production in United States. To combat these stresses, subsurface tile drainage systems were used conjunction with water-level control structures for subirrigation of claypan soils. The objective this research was to develop an understanding climate drain spacing on plant population, grain moisture, yield, quality measured from only (DO, 6.1 12.2 m), (DSI, non-drained delayed planting (DP), (ND) treatments a 17 year (2002–2018) experiment. Production data classified into normal, wet, dry years based precipitation received during 2nd quarter (Q2, Apr. Jun.) 3rd (Q3, Jul. Sep.). There not single 17-yr that normal Q2 Q3 (314 ± 43 288 34 mm) compared 29-yr historical data. Data collected at 3.1 m intervals above between lines among weather classifications (WC). A yield increase 20–32% (2.6 3.9 Mg ha−1) DSI DP ND when averaged over WC. In as dry-dry, yields tiles >60 % ND. Grain highest had less than average (dry) followed by or wet period. variability WC 10.8 16.2 ha−1 DSI-6.1 -12.2 whereas it 2.9 15.1 generally decreased year. Long-term indicated narrower spacings reduce environments; however, cost-effectiveness needs be determined.
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ژورنال
عنوان ژورنال: Field Crops Research
سال: 2021
ISSN: ['0378-4290', '1872-6852']
DOI: https://doi.org/10.1016/j.fcr.2020.108032