<p>ABSTRACT</p><p><br />Biofertilizer has an important role in P-solubilization from phosphate rock, therefore it can be absorbed by plant. The organic acdid produced by biofertilizer can solve the phosphate mineral from phosphate rock. The objectives of the research were: to know the effect of biofertilizer and phosphate rock on the availability of P and the growth of strawberry at Andisol. The treatments included 2 levels of biofertilizer, i.e. 0 and 200 L . ha-1 and 5 levels of phosphate rock, i.e. 0; 100; 200; 400; and 800 kg P2O5 ha-1. The experiment was arranged in completely randomized block design with 3 replicates. The result showed that the application of biofertilizer and phosphate rock could increase the availability of P and total P of Andisols, dry weight of plant, lenght of plant and fresh weight of fruit .. Interaction between biofertilizer and phosphate rock could increase the soil pH.</p><p><br />Key words: biofertilizer, phosphate rock, andisols, strawberry</p>
Stewart's wilt disease is caused by Pantoea stewartii subsp. Stewartii is an important disease of maize. Information about the level of damage and the pattern of spread of the disease is needed to design a management strategy for Stewart's wilt. This study aimed to obtain the level of damage and the pattern of spread of Stewart's wilt disease on maize in the Banyumas area. A survey of Stewart's wilt disease was carried out using multistage purposive random sampling. The observed variables were disease incidence and AUDPC (area under the disease progress curve). Results showed that level of damage of sweet corn caused by P. stewartii subsp. Stewartii in Wangon, Pekuncen, Rawalo, Patikraja, and Purwojati sub-districts, Banyumas district ranged from 0.15% to 1.67%. This value was classified as very mild. The distribution pattern of Stewart's wilt includes a gradient distribution pattern that collects in one place close to the inoculum source.
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