Sentence examples for cultivation is difficult from inspiring English sources

Truly organic cultivation is difficult, growers agree, but the applications are generally added only to fallow fields, meaning this year's crop is 12 to 18 months past the application date safe for human consumption if somewhat questionable for the environment.

Accordingly, some remnant stands of natural forests are mainly confined to religious sites, along rivers and streams, and on peaks of hills where crop cultivation is difficult in the highlands of Ethiopia (Warra et al. 2013).

However, its cultivation is difficult because of long seeds dormancy and very slow growth from seed.

However, long-term risks of GMO cultivation are difficult to assess, in particular, because possible impacts depend on spatially varying conditions [54].

Similarly, Laznik et al. (2010) reported that even after efficient control of Leptinotarsa decemlineata Say, using S. feltiae isolate B30 Laznik and the commercial products of S. feltiae (Entonem) in potato cultivation in Slovenia, broader implementation of these nematode strains in potato cultivation was difficult because of their high price.

Under these conditions, rain fed cultivation was difficult, forcing early settlers to develop means to store water in order to maintain a constant supply of water for their cultivations.

Lowering the yeast concentration can reduce the cost associated with yeast cultivation, because it is difficult to reuse yeast in SSF of lignocelluloses.

As the cultivation of Campylobacter species is difficult, the actual prevalence might be higher.

Although truffles are much desired as food, direct cultivation of truffles for commerce is difficult.

Another obstacle is difficult and costly cultivation of native cellulosome-producing bacteria due to requirement of anaerobic conditions (Lambertz et al. 2014).

Cultivation of this obligate intracellular bacterium is difficult and the diagnosis is therefore based on demonstration of the microbe or microbial DNA in tissue specimens or faecal samples by techniques such as PCR [ 4].