On average, ground-living natural enemies of pests increased barley yields by 303 kg/ha.
The craft brewing industry says crop insurance will help increase barley production in New York.
Pyramiding of genes and QTL has been successful in many breeding efforts, including increasing barley stripe rust resistance (Castro et al. 2003), increasing barley yellow dwarf virus resistance (Riedel et al. 2011), and improving rice yield and quality (Wang et al. 2012).
A partially contradicting result was reported by Lillywhite et al. 2009, which indicated the application of municipal waste derived compost, resulted in both increased and decreased barley yields, depending on the situation.
For example, barley yield can be increased by 10%% depending on the cultivar, due to a higher number of ears (Waller et al. 2005), while in green gram, the number of pods per plant as well as the number of seeds per pod was higher (Ray and Valsalakumar 2010).
Total yield, barley yield equivalent, land equivalent ratio (LER) and system productivity index (SPI) of mixtures exceeded those of sole crops especially when faba bean seed rate in the mixture was increased to 75 kg ha−1 (37.5%) or more.
In contrast, annual oat yield has fluctuated between 61 and 65 bushels/acre and barley yield has remained stagnant at ~50 bushels/acre during the last 25 years.
The highest barley yield equivalent, SPI, crowding coefficient and LER were obtained when faba bean was mixed at a rate of 37.5% with full seed rate of barley.
Barley yield ranged from 2.5 to 3.8 Mg ha−1, while soybean yield ranged from 1.5 to 2.1 Mg ha−1.
While the media claim global warming is jeopardizing our beer bellies by harming barley production, U.S. farmers in 2009 netted their highest ever barley yield per acre.
