| In order to get the best mulching plating mode for hulless barley in Tibet,a randomized block experiment with five mulching planting modes including planting methods of bunch planting covered with water permeable plastic film (SS), bunch sowing covered with degradable plastic film (JJ), bunch sowing covered with common plastic film (PT), strip sowing with ridge film(LT),banded sowing with ridge film(LD) the traditional local farmers’ strip planting as control (CK) and was conducted in Bianxiong township, Rigaze city, Tibet Autonomous Region through randomized block experiment design.The differences of photosynthetic characteristics, yield and its components of hulless barley among the different treatments were analyzed. The results showed that compared with CK, the relative chlorophyll content, net photosynthetic rate, stomatal conductance and transpiration rate of hulless barley leaves under the five film mulching planting modes were all increased to various degrees, among which those of LD treatment was the best. The average yield of JJ, SS, PT, LT and LD treatments were 4 560, 4 425, 4 335, 4 635 and 4 740 kg ·hm-2, respectively, which were significantly higher than that of CK, and the increase rate of yield under LD treatment was 61.69%, which was significantly different from that of CK. Therefore, under the conditions of this experiment, strip sowing with ridge film is the best high-yield cultivation mode in Tibet. |
基本信息
