Row Spacing Effects at Different Levels of Nitrogen Availability in Maize

By P. Barbieri, H. S. Rozas, Fernando H. Andrade, H. Echeverría. 2000

106 citations recorded by the source corpus.

No-tillage maize (Zea mays L.) grown without adequate N intercepts less than 95% of the incident radiation at flowering. Reducing the distance between rows could increase radiation interception and grain yield. A 2-yr experiment was conducted at INTA Research Station, Balcarce, Argentina (37°45' S; 58°18' W), to study the effect of row spacing and N availability on intercepted radiation, kernel number, and grain yield of no-till maize. Treatments consisted of a factorial combination of row width (0.35 and 0.70 m) and N (0 and 120 or 140 kg ha -1 each year) at a constant plant density. Low N decreased kernel number and grain yield. Narrow rows significantly increased kernel number per unit area and grain yield. Average increases in response to narrow rows were 14.5 and 20.5% for kernel number and grain yield, respectively. However, relative increases in response to narrow rows were greater at low N. A close association between kernel number and intercepted radiation during the bracketing-Bilking period was observed. With conventional row spacing, relative grain yield responses to narrower rows decreased as crop radiation intercepted at flowering increased. A decrease in row distance when N was limiting partially offset the negative effects of N deficiency on grain yield. Our results indicate that 27 to 46% increases in grain yield were obtained in response to narrow rows in N-deficient maize crops.

Subfields: Agronomy and Crop Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/c578e0582699e054d31cc22a81929d61e5047d81

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Citations in the corpus

Responses of Maize Hybrids to Twin-Row Spatial Arrangement at Multiple Plant Densities (2012, background): “Nonetheless, sharply contrasting conclusions have been reported regarding grain yield response to narrow rows (Nielsen, 1988; Porter et al., 1997; Barbieri et al., 2000; Farnham, 2001; Ma et al., 2003; Andrade et al., 2002; Shapiro and Wortmann, 2006; Yilmaz et al., 2008), and the grain yield…”
Physiological Determinants of Crop Growth and Yield in Maize, Sunflower and Soybean (2005, background): “…evaporation from the soil surface (Yao and Shaw, 1964; Nunez and Kamprath, 1969; Karlen and Camp, 1985), an inhibition of weed growth (Forcella et al., 1992; Teadsdale, 1994) and an improved uptake of limiting nutrients from the soil (Stickler 1964, Rosolem et al., 1993, Barbieri et al., 2000).”
Intra-specific competition in maize: early establishment of hierarchies among plants affects final kernel set (2004, background): “, 1996), especially for canopies that did not reach the critical LAI (Barbieri et al., 2000; Maddonni et al., 2001; Andrade et al., 2002).”
Improving weed management and crop productivity in maize systems in Zimbabwe (2004, background): “Andrade et al. (2002) and Barbieri et al. (2000) demonstrated that maize grain yield was positively correlated to the amount of radiation intercepted by the maize canopy during critical period bracketing flowering in maize.”
Yield components, light interception and radiation use efficiency of lucerne (Medicago sativa L.) in response to row spacing (2013, background): “The higher fPARi was mainly explained by changes in leaves disposition; in other words, a more equidistant arrangement of the plants ensured a more uniform distribution of leaves in the canopy (Zaffaroni and Schneiter, 1989; van der Werf et al., 1995; Flenet et al., 1996; Barbieri et al., 2000; Shar”
Row Width and Maize Grain Yield (2006, methodology): “Consequently, grain yield increase in narrow rows depends on the actual improvement in light interception at silking (Andrade et al., 2002; Barbieri et al., 2000).”