Agriculture Reference
In-Depth Information
Figure 5.2
Effects ofirrigation methods and herbicides (napropamide and
pebulate) on soil moisture content (a and b),weed biomass (c and d),and
marketable tomato yield (e and f) in a field experiment conducted in California,
USA.Tomato was direct-seeded in the center of1.5-m wide beds.All treatments
were sprinkler irrigated until tomato was 23 cm tall,and cultivated and hand-
weeded for 7 weeks after planting.Moisture content was measured in the top 2.5
cm ofsoil,one day after irrigation.(After Grattan,Schwankl & Lanini,1988.)
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