(2) illumination. Winged bean is a short-day plant, which is sensitive to the length of sunshine. Under the condition of long sunshine, it is easy to cause the stem to grow in vain and cannot blossom and pod.
(3) moisture. Winged bean plants have developed roots and are drought-resistant, but they are not tolerant to long-term drought, especially at the flowering and pod-setting stage, which requires moderate soil moisture content and is not tolerant to waterlogging.
(4) soil. Winged beans are not strict with soil and have strong adaptability, but they do not grow well in sticky soil or hardened soil. Deep and fertile sandy loam can obtain the best yield and quality of tender pods.
(5) fertilizer. The root nodules of winged bean have strong nitrogen fixation, but because of its long growth period and large fertilizer demand, farmyard manure and chemical fertilizer are still needed. A small amount of topdressing nitrogen fertilizer at the initial stage of growth; In order to prevent excessive growth of stems and leaves, nitrogen and phosphorus should be applied in the early stage of reproductive growth to promote flowering and pod setting; More potassium fertilizer is needed at flowering and pod setting stage.