High Yielding Performance of Soybean in Northern Xinjiang, China

Growth of High-Yielding Soybeans and its Relation to Air Temperature in Xinjiang, China

“…In the present experiment, however, there was no signifi cant relationship between NAR and mean LAI in any cultivars, demonstrating no severe mutual shading even at a higher LAI. We previously reported that Toyokomachi, which had the highest seed yield, had effective characteristics for radiation interception in spite of relatively large LAI (Isoda et al, 2006). In addition, abundant and intensive solar radiation might reduce mutual shading even at a range of large LAI as previously reported (Black, 1963;Nakaseko and Gotoh, 1981a).…”

“…We previously reported that the yield of soybean was very high in Xinjiang, China in 2002, 2003and 2004 seasons (Isoda et al, 2006). In 2005, however, the seed yield was very low.…”

A high seed yield and associated attributes of dry matter production achieved by recent Japanese soybean cultivars

“…Specht et al (1999) estimated that soybean's yield potential could reach 800 g m −2 if the estimated seed yield limit for corn was 2250 g m −2 and the ratio of corn yield to soybean yield was 2.8. In fact, very high soybean yields that approach or exceed this estimated potential yield have been reported: 795 g m −2 (Van Roekel & Purcell, 2014) and 920 g m −2 (Isoda et al, 2006). The maximum soybean yields in the current study (590 and 658 g m −2 in Hatsusayaka and Sachiyutaka, respectively; Table 2) were 18 and 26% lower than that estimated potential yield but were equivalent to or higher than the previously reported high yields in Japan, which ranged from 528 to 649 g m −2 (Nakaseko et al, 1984;Shimada et al, 1990;Spaeth et al, 1987).…”

Soybean Cultivation on Desert Sand Using Drip Irrigation with Mulch

“…Sinclair (2004) summarized that N accumulation by either N 2 fixation or soil N uptake is closely linked to C accumulation rate, and that N and C accumulation limits the yield of soybean. Isoda et al (2006) pointed out that one of the possible reasons for high yields of soybean in Xinjiang was abundant solar energy, besides drip irrigation which can supply frequent and sufficient water. Thus, there is less limitation for C accumulation due to abundant solar energy in the marginal areas of the deserts such as the northern Xinjiang, with a high leaf area index.…”