Improvement of Soybean Growth and Yield (Glycine max L.) by Inter-row Stripe Tillage in Upland Fields Converted from Paddy Fields
Improvement of Soybean Growth and Yield (Glycine max L.) by Inter-row Stripe Tillage in Upland Fields Converted from Paddy Fields
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稻田改作旱田行间条耕提高大豆生长和产量
DOI：
10.6090/jarq.46.115
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发表时间：
2012
影响因子：
0.4
通讯作者：
S. Yoshinaga
中科院分区：
文献类型：
--
作者：
S. Yoshinaga
采用行间带状耕作(IST)技术，在免耕土壤上进行行间耕作和播种，在旱地还田(UFCP)上种植大豆，研究其对土壤水分、生长和大豆产量的影响。与常规耕作不同，IST免耕土壤的三个阶段表现出较低的固液相。与常规耕作相比，IST免耕土壤在干旱条件下的含水率较高，而在干旱和水分过剩条件下的液相波动较小。间歇式栽培的植株根瘤较多，SPAD值较高。它们也较长，主茎节数较多，开花期干重较大。由于结荚数和百粒重较高，IST产量高于常规耕作。旱作免耕土壤的特性缓解了旱作旱地土壤水分的波动，是旱作旱作作物生长良好、产量较高的原因。土壤渗透性与性能之间的关系仍有待评估，同时还需要提高IST的运行效率。
We adopted ‘inter-row strip tillage’ (IST), which involves conducting tillage between rows and sowing on no-tillage soil, to cultivate soybeans in upland fields converted from paddy fields (UFCP) and examined the effect on soil water content, growth and soybean yield. The three phase of no-tillage soil in IST differs from soil harrowed via conventional tillage, which shows lower solid and liquid phases. No-tillage soil in IST showed a larger water content under drought conditions and less fluctuation of the liquid phase between conditions of drought and excess moisture compared to those of harrowing soil in conventional tillage. The plants in IST had more root nodules and showed higher SPAD values. They were also longer, with more nodes on the main stem, and a larger dry weight at the flowering stage. The IST yield exceeded that in conventional tillage, due to the higher number of pods and 100-kernel-weight. The factors of superior growth and higher IST yield were attributed to the property of the no-tillage soil in IST, which alleviates the fluctuation of the soil water content in UFCP. The relationships between soil permeability and property remain to be evaluated, while there is also a need to improve the IST operational efficiency.