The effect of blood hydrolysate on the yield and quality of hop
2000
Snobl, J. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic))
Efficacy of application of blood hydrolysate on yield and quality of strobils was studied. The blood hydrolysate made from cattle blood contained free amino acids, peptidic grafts, calcic and amonium nitrate, and porfyrins. It was applied, diluted in 1500 to 2000 l of water, by spraying in July in one and in two terms. The dose of blood hydrolysate was gradated (1, 2, 3, 4, 6 l/ha). The results of the harvest confirmed a positive influence on yield of the strobils. Variant treated with blood hydrolysate achieved approximately the same content of alfa bitter acids in strobils as the control variant. The positive business evaluation of strobils in case of variants treated with hydrolysate was influenced mainly by better colour of strobils.
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