Soybean root rot is a widespread disease that can affect soybeans throughout their entire growth cycle, leading to significant yield losses, with reductions ranging from 25% to over 75%. Infected seeds show a marked decrease in protein content. The primary symptoms include dark brown spots at the base of the stem, which may spread upward to the lower lateral branches. This causes the inner stem tissue to turn brown, petioles to contract, and leaves to droop without falling off. For control, it's common to use 58% thiram Mn-Zn or 72% Kocide wettable powder as a seed treatment at a rate of 0.3% to 0.4% of the seed weight.
Sclerotinia sclerotiorum, also known as white mold, primarily infects the stems of soybean plants. Infection usually starts in late July, beginning with brown lesions on the stalks. As the disease progresses, white cotton-like mycelium and small white particles appear on the lesions, eventually turning into hard black structures called sclerotia. Infected plants often develop a grayish appearance before dying. To manage this disease, farmers commonly spray 50% Sikrodine WP diluted at 1:1000, 40% NF bacteria solution at 1:1000, or 50% thiophanate methyl at 1:500.
Soybean gray spot disease, also referred to as leaf spot, typically begins on upper and middle leaves in June and becomes noticeable by mid-July. The disease tends to peak during the tender and bulging stages of the plant. Heavy outbreaks occur in July and August under high temperature and heavy rainfall conditions. It mainly affects the leaves, and severe infections can lead to premature defoliation, resulting in yield losses of 20% to 30% and reduced grain quality. For chemical control, 70% dexamethasone WP or 50% thiram is applied as a seed treatment at 0.3% of the seed weight. Additionally, 40% carbendazim suspension is sprayed at 1.5 kg per hectare mixed with 450 liters of water.
Corn Steep Liquor Powder 42%
1. Corn steep liquor is a water-soluble fertilizer that can be applied directly or it can be mixed with other liquid fertilizers, growth promoters (seaweed) or dry fertilizers. Whether sprayed, irrigated, foliar or applied through the soil. NPK 7-7-7
2. Corn steep liquor powder helps promote the natural growth of plants with nitrogen, phosphorous and potassium, it also contains micro-nutrients such as iron, sulfur and manganese, as well as amino acids and trace elements and vitamins, which are completely non-toxic, harmless and pollution-free.
3. It can also improve the structure and fertility of the soil, promote the activities of microorganisms and soil organisms, and the decomposition of nutrients in the soil in an effective and economic way.
4. Benefits include:
1) Easy to apply and mix
2) Rich in organic matter and nutrients
3) Compared with chemical fertilizers, it contains fast-acting nitrogen that plants can easily absorb
4) Organic, natural plant-based form of nitrogen.
5) It helps crops grow and improves the soil
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