Acta fytotechnica et zootechnica, 3, 2000, 2

Ján JANČOVIČ, Ľuboš VOZÁR, Eva ĎURKOVÁ
Botanical and production changes in phytocenosis after cessation of mineral fertilizing....29

Jaroslav NOSKOVIČ, Jana PORHAJAŠOVÁ, Jana URMINSKÁ
The effects of slow-acting nitrogenous fertilizers on leaching N-NO3- and N/HN4+: A laboratory lysimetric experiment....32

Ladislav VETERÁNY, Svätoslav HLUCHÝ, Ján WEIS
The influence of artificial sound stimulation with varied beginning of action on ISA 715 VEDETTE hybrid chicks hatching....36

Jozef HUDEC
The influence of organic components of the liquid fertilizer AVIT 35 on the yield of winter wheat....38

Khaled Mohamed Abdel RAHMAN
Studies on the embryology of the grasshoper Chrotogonus lugubris Blanchard (Orthoptera, Acridoidea, Pyrgomorphidae). II. Early development....41

Marek ENGELHARDT, Milan BEŽO
Isozyme analysis of multishoot culture of cytoplasmic male sterility lines and O-types of sugarbeet (Beta vulgaris L.)....46
Milan BARTA
Female nutria fertility of different genotypes during three estral cycles....49
Martin HALAJ, Peter HALAJ, Jozef GOLIAN, František VALAÁŠEK, František MORAVČÍK, Martin MELEN
The influence of storage time and temperature on weight loss in eggs and yolk pigmentation....52

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