| can row spacing influence arthropod communities in soybean? implications for early and late planting. | row spacing in agricultural systems can influence crop yield as well as pest and predator abundances. soybean (glycine max l. merrill) growers in maryland typically plant in narrow (∼19 cm), medium (∼38 cm), or wide (∼76 cm)-spaced rows, and there is a general lack of information on how these row-spacing schemes influence arthropod abundance and soybean yields. a study was conducted during two growing seasons to determine the effect of soybean row spacing and planting date (early and late) on so ... | 2015 | 26313960 |
| predicting unsaturated zone nitrogen mass balances in agricultural settings of the united states. | unsaturated zone n fate and transport were evaluated at four sites to identify the predominant pathways of n cycling: an almond [prunus dulcis (mill.) d.a. webb] orchard and cornfield (zea mays l.) in the lower merced river study basin, california; and corn-soybean [glycine max (l.) merr.] rotations in study basins at maple creek, nebraska, and at morgan creek, maryland. we used inverse modeling with a new version of the root zone water quality model (rzwqm2) to estimate soil hydraulic and nitro ... | 2010 | 20400601 |