Nonetheless, treatment with oxalyl chloride in diethyl ether forms the required bis-isatin in poor yields.
In addition, a drought last year in the Upper Midwest caused relatively poor yields for some organic crops.
The copper II) or cerium(IV) catalyzed reactions under similar conditions gave poor yields.
The "market" simply does not work for these farmers, who are stuck in a cycle of poor yields, impeding their access to the right farm inputs and trainings, and therefore producing poor yields again the next season.
Under the federal crop insurance program, farmers can buy insurance that covers poor yields, declines in revenue or both.
Under the federal program, farmers can buy insurance that covers poor yields, declines in prices or both.
Under the federal crop insurance program, farmers can buy insurance policies that cover poor yields, declines in prices or both.
The methods described in the literature lead to long reaction times, poor yields and formation of side products.
The price of cereals should have fallen during the post-harvest period in Niger, but have risen sharply as a result of the poor yields.
Minimum-tilled plantings of ginger, however, resulted in poor yields (30.9 43.1 t/ha) but had acceptable levels of disease.
Poor yields affects a family's resistance to disease, cuts livelihoods and, in the end, reduces access to basic service such as education and healthcare.
