Mix Cropping of Multiy and One Cut Persian Clover, Suitable Method for Quantity and Qulity Forage Clover Increase

In order to increasing forage production in country, mix-cropping cropping of Persian clover cultivars (single and multi-cuts) is simple and cheap method. In this experiment, mixed seed with 5 level including 0-100,100-0,50-50,40-60, and 60-40 and seed density with 3 levels of 10,15 and 20 kg/ha has been carried out as a factorial design with the base of randomized completely block design (RCBD) in Seed and Plant Improvement Institute for two years (2012-13). The results of two years study showed that mix cropping of Persian clover (single and multi-cuts) cultivars caused 30% forage increase yield, 32% dry matter yield and 8% percentage crud protein with sole cultivation. In generally with increase seed rate of one cut cultivar in mix cropping caused higher forage quality and increasing of seed rate in multi-cut cultivar, created higher forage quantity. According to the obtained results, the highest dry matter yield with 5.24 t/ha was obtained from the treatment of 50% Persian clover (single cut) and 50% multiple cut Persian clover whit using 15 kg/ha seed rate. Computation of LER (Land Equivalent Ratio) showed that the treatment of 50% Persian clover (single cut) and 50% multiple cut Persian clover and seed rate 15 kg/ha with LER=2.18, 1.99 and 2.17 for forage yield, dry matter yield and percentage crud protein respectively and the best mix cropping model in clover agronomy recommended.