To avoid biasing the articles with respect to known authors, groups or papers, we searched the literature database (ISI Web of Knowledge: http://isiknowledge.com) using the keywords: "pest * AND diversification", "pest * AND intercrop
*", "pest * AND habitat manipulation", "habitat manipulation AND agroecosystems", "biological control AND agroecosystems", "biological control AND habitat manipulation".
Effects of planting pattern, relative planting date and intra-row spacing on a haricot bean/maize intercrop
. African Crop Science Journal 5 (1): 15-22.
Nodulation in some legumes grown as pure and intercrops
. Indian Agriculturist 35(1):15-19.
Compared with all other intercrop
periods, WSE in the W-C phase, averaged over all soil positions, was 1.7 times larger than WSE for corn to millet (C-M) and 3.0 times larger than WSE for millet to [TABULAR DATA FOR TABLE 4 OMITTED] wheat(M-W).
Because of the maize is a widely used crop, inter-row space could advantageous be used for legumes in the intercrop
Hence, more space and availability of sunlight for a longer period in the early phase of sugarcane crop provides an opportunity to grow successfully intercrops
without any negative impact on sugarcane which not only suppress the weeds capturing the incoming sunlight more effectively so minimum sunlight radiation will be available for germination of weeds.
For the intercrop
between oat and vetch, cubic behavior was observed, showing at 65 days after sowing values of 47.79% NDF, quickly increasing until reaching 58.60% at 93 days due to the earlier senescence of lopsided oat compared to the other species (including common oat), as ryegrass was absent in that treatment.
The castor bean plant heights presented a quadratic response to plant densities; the highest heights were found in plants at density of 24,500 plants [ha.sup.-1] in both single crop and intercrop
systems (Figure 2), which presented no significant differences for plant height.
Significantly higher grain yield per plant was recorded at intercrop
1:1 and 1:2 as compared to Sole Pearlmillet system which could be attributed to higher and optimum plant densities in sole cropping system.
Li et al., "Yield advantage and water saving in maize/pea intercrop
," Field Crops Research, vol.
hermonthica dry matter decreased as the proportion of groundnut increased in the intercrop
except 2:3 ratio.
performance as compared to pure stand or monoculture is higher in terms of income per unit area of land.