Titlebook: Effects of Crop Rotation on Potato Production in the Temperate Zones; Proceedings of the I J. Vos,C. D. Loon,G. J. Bollen Conference procee

Overdose

Effects of Cropping Frequency on Potato Production5 per cent. Much higher losses were incurred when the potato cyst nematode was the pathogen affecting plant growth..Potato cyst nematodes and . spp. were most often mentioned as the pathogens that were responsible for yield losses, but also other organisms can be involved. Differences in parameters

nonplus

Twelve Years of Continuous Cropping and Short Rotations of Potato at the ‘PAGV1’ Experimental Sitee-course rotation decreased in the two years without potato. In August . caused less early dying of the potato crop in the three-course rotation (disease index 21) than in the two-course rotation (disease index 30) and in continuous cropping (disease index 51). At the end of the season most of the p

Itinerant

Relative Performance of Potato Cultivars in Short Rotationsrka) and 34% for group II (cultivar Saturna) averaged over 1981 and 1982. The corresponding figures for 1983 were approximately 0% and 33%, respectively..Based on cultivar reaction and observations of the incidence of several diseases, it is concluded that . was the most important yield-reducing pat

生存環(huán)境

隱士

臥虎藏龍

Bacteria and Potatoes in Crop Rotation Systems overt plant symptoms are classified as deleterious microorganisms distinct from pathogenic bacteria that cause infectious diseases. Deleterious bacteria are implicated in causing suppressive effects on potato yields particularly in soil cropped continuously to potatoes. Growth promoting rhizobacter

消耗

Interregnum

Monocle

狂熱文化

Effects of Crop Rotation on Potato Production in the Temperate Zones978-94-009-2474-1