In other trial conducted by the Ministry of Agriculture, increase yield of 56% was recorded where Greenvale products were used. Indications were that half the plant nutrients are available immediate, the remainder being released over a period of some ten weeks. The quality of Greenvale products is evident by its nutritional values. Typical analysis shows 5.5 to 6.5 per cent Nitrogen, 4.5 to 5.5 per cent Phosphates, and 3.0 to 4.0 per cent Potash. Rooster is dried to 88 per cent dry matter so you are not wasting money on water.