The ryegrass is a winter forage specie commonly used in the south of the country in reason of its adaptability to the region climate conditions and for having the natural regeneration capacity. Therefore, the goal in the present study was to evaluate the BRS Ponteio variety ryegrass production and its protein quality under different levels of cattle manure. The experiment was carried out at the UERGS Rural Campus, located in Santana do Livramento/RS. The experimental design was the randomized blocks with three repetitions by block. The experimental unities were 4 m² land portions. The treatments were five bovine manure levels of 0, 37, 74, 111 and 148 T ha-1. Were evaluated the following characteristics: the shoot natural and dry matter, crude protein content (at 1st, 2nd, and 3rd cuts) and the leaf/stem ratio. The results showed that the use of cattle manure promoted a linear response on the natural and dry matter production in all the cuts analyzed. Also, the treatments with higher bovine manure levels showed higher crude protein content and a higher leaf/stem ratio. The highest production of natural matter, dry matter, crude protein and highest leaf/stem ratio happened in the second cut.

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The productivity of the strawberry fruits are extremely influenced by the management practices, especially the potassic fertilization.The use of rock can be an alternative to the use of soluble chemical fertilizers.Among the rocks supplying potassium, the granodioritognáissico. In the exhibition, the work was carried out with the objective of evaluating five doses of grannioric gnáico: 0; 3; 6; 12; 18 g pot as source of K for strawberry crop.The characteristics of the evaluated plants were as follows: fruit yield; content of K, Ca and Mg in the plant tissue and the K content in the soil. The results showed that there was a quadratic response of the strawberry production to the doses of gnáissico granodiorite reaching a dose of maximum technical efficiency of 11,7 g vase of gnáissico granodiorite. The application of gnáissico granodiorite promoted an increase in the levels of K in soil, plant tissue and strawberry fruits. It is concluded that granodiorite gnaissico can be used as a potassium source for strawberry cultivation.

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