Abstract On a bouldery yellow-brown loam near Te Anau, South Island, New Zealand, covered mainly with stunted Pteridium esculentum, white clover inoculated with Rhizobium trifolii was oversown as follows: 1. At 4 different times: July, August, September, and November 1961. 2. With and without 10 cwt limestone/ac. 3. Unpelleted and pelleted with animal charcoal or lime. The following results were obtained: 1. In spite of the use of a certified source of clover rhizobia peat culture a large proportion of seedlings had a nitrogen-deficient appearance one to 2 months after sowing. Recovery from deficiency symptoms occurred in spring and again in autumn, but not during a relatively moist summer. This fact favoured the July- and August-sown treatments. 2. Cover provided by fern and stones against frost-heave and sun appeared to interact with time of sowing. 3. The majority of the pellets made had low numbers of effective clover rhizobia. Even the high-quality pellets used in the July sowing gave no better resul...
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