Doses of corrective phosphating in land rice high in first year of culture

The aim of this study was to evaluate the influence of phosphorus levels in coverage of the morphological and productive components in rice plant upland. The study was conducted in the municipality of Alta Floresta - MT, in the agricultural year 2007/2008 in a randomized block design with five treatments (0, 50, 100, 150 and 200 kg ha-1 of P2O5) following the recommendations of Sousa et al., (2006 ), with four replications. They evaluated the length between node, plant height, stem diameter, number of tillers, number of panicles, number of grains per panicle, percentage of grains " full ", weight of 100 grains and grain yield . The match only had no influence on weight of 100 grains and length from node. The highest yield was obtained in corrective dose of 168 kg ha-1 of P2O5

Match sources of manure in corrective land rice high in first year of culture

The objective was to evaluate the effect of phosphorus sources as a partial corrective fertilization and maintenance in upland rice cultivation. The experiment was conducted in the municipality of Alta Floresta/MT in crop year 2007/08, using the experimental design of randomized blocks with five treatments (control, simple superphosphate, triple superphosphate, Arad reactive rock phosphate and bone meal), and four replications. The following characteristics were evaluated: plant height, stem diameter, tiller number per meter, panicle number per m2, Internode length, number of grains per panicle, percentage of filled grains, voids, weight of 100 grains, return on beans, whole grain yield and productivity. Applying phosphorus influenced most of the morphological characteristics of the rice, except the stem diameter and length of the internode. There was influence of phosphate sources for the number of grains per panicle and productivity and that the two variables for the treatments with superphosphate and triple superphosphate were higher than the control. The use of triple superphosphate provided greater productivity and higher economic return in the first year of cultivation