Proceedings of the New Zealand Weed and Pest Control Conference1981 - Pesticides |
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Page 182
... occurred , caused yields at the Darfield and Highbank sites to be considerably below their estimated yield potential of 7 t / ha ( Tables 1 and 2 ) . However the yield of the crop at Methven , which was irrigated on 20 December ...
... occurred , caused yields at the Darfield and Highbank sites to be considerably below their estimated yield potential of 7 t / ha ( Tables 1 and 2 ) . However the yield of the crop at Methven , which was irrigated on 20 December ...
Page 194
... occurrence of high levels of leaf infection over the spikelet formation period has the effect of reducing the number of grains per head while later infection reduces grain size . Very late infections such as occurred at Chatton had no ...
... occurrence of high levels of leaf infection over the spikelet formation period has the effect of reducing the number of grains per head while later infection reduces grain size . Very late infections such as occurred at Chatton had no ...
Page 238
... occurred in all Wairarapa barley crops surveyed in 1980-81 and 1981-82 and spot blotch symptoms occurred in 42 % and 48 % respectively . Ninety five per cent of the crops were grown from seed treated with carboxin + thiram and 5 % from ...
... occurred in all Wairarapa barley crops surveyed in 1980-81 and 1981-82 and spot blotch symptoms occurred in 42 % and 48 % respectively . Ninety five per cent of the crops were grown from seed treated with carboxin + thiram and 5 % from ...
Contents
A relationship between seed yield of white clover and density of yarrow G | 5 |
Fungicide seed treatment to improve establishment of ryegrasses and other | |
Weed control in lentils J H B Butler and W A Jermyn | 3 |
Copyright | |
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35th N.Z. Weed adult Agric aphid application Argentine stem weevil asparagus assessed atrazine Auckland bait barley beetle Canterbury chemical chlorpyrifos Christchurch crop cultivars damage density diazinon diquat disease diuron DSIR effect endophyte EPTC ester fensulfothion field trials foliar formulation fungicide g/ha gave germination glyphosate gorse grass grub grazing growth Hamilton harvest herbicides hexazinone infection insecticide kg ai/ha kg/ha kiwifruit larvae leaf levels lindane linuron litres/ha loam lucerne MCPA METHODS nematodes nodding thistle numbers oxamyl P.O. Box paddocks Palmerston North paraquat pasture permethrin Pest Control Conf picloram plants plots populations porina post-emergence Proc prochloraz production programme pyrethroids ragwort reduced regrowth replicates residues Ruakura ryegrass samples season seed treatment seedlings significant significantly simazine slug soil sown species spray stage stripe rust Table tamarillo tested triadimefon triclopyr untreated Weed and Pest weed control weeks wheat white clover yield Zealand