Control of soybean dodder
Soybean dodder is a malignant parasitic weed, mainly parasitic on legumes, Chenopodiaceae, Compositae crops or weeds, but also harmful to peanuts, alfalfa and potatoes.
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Why do soybeans spend but not bear fruit?
Xiaonan District Xinpu Town Xihe farmer Liu Dezheng and some farmers in Xiaogang Town and other places asked: why do soybeans (soybeans) blossom this year without pods or empty pods? According to our field investigation, in fact, the vast majority of soybeans this year are fruiting, and it is a phenomenon that flowering does not bear pods or empty pods are shrunken seeds in local areas and a small number of farmers. Through field investigation and analysis, there are mainly the following reasons. First, from the perspective of variety. This year's early and middle maturity varieties generally blossom and bear pods better, while some of the late maturity varieties are sown better.
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Occurrence and control techniques of soybean anthracnose
The main results are as follows: (1) most of the diseased seeds with disease symptoms die in the soil before emergence and can occur from seedling stage to mature stage. The pathogen can invade young stems from cotyledons, harming stems and pods, as well as leaves or petioles. 1.1 Cotyledon disease symptoms can occur from seedling stage to mature stage, there are dark brown disease spots on the emergence cotyledons, the edge is slightly light, the disease spot expansion often appears cracking or depression, when the climate is humid, the cotyledons become water-immersed, wilt and fall off quickly. 1.2 symptoms of leaf disease infection on the leaf, irregular spot and deep edge
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