Key examples are systems combining no-till seeding, crop-rotations including legumes, plus maintenance of continuous crop-residue cover to the soil.
But this did not change the relative profitability of the treatments: sole maize fertilized and unfertilized remained more profitable than the respective legume intercrops.
Very large increases (well over 100 %) in the price of legumes would be required to make legume-maize intercrops more profitable than sole maize.
For mixed grass+legume silages, the case was more complex, since the value of the silage is not independent of its composition.
Output taxes consisted of the tithes (osur) applying primarily to grains, legumes, and fibers.
The intercropped legumes grew moderately well most years.
Plant husbandry and management techniques for growing grain legumes under simulated tropical conditions in controlled environments.
Absent from private sector research, not surprisingly, are many crops cultivated by the world's poor, including small-grain cereals, tubers and legumes.
