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How to apply wintering fertilizer properly to spinach before overwintering
1. Sowing. Spinach is mainly broadcast-sown, though drilling is also possible. Under high-temperature conditions, germination is slow, so for early-autumn sowing it is best to soak the seeds to promote germination: soak the seeds for 12 hours, then treat them in a refrigerator at 4°C for 24 hours, and then keep them at 15-25°C to promote germination for several days; once most have germinated, they can be broadcast-sown. Sowing rate per mu...
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A Detailed Guide to Managing Wheat Seedlings Before Winter by Leaf Color
1. Causes of yellow leaves in wheat seedlings and their management. First, soil drought, which mostly occurs in wheat fields with insufficient subsoil moisture or where moisture escapes through cracks in the soil. Its characteristics are slow tiller emergence, grayish-green leaf color, short and small heart leaves, slow or stalled growth (known as "shriveled-heart seedlings"), gradual yellowing and drying of the middle and lower leaves, and few, thin roots. The key management point is to apply 15 kg of ammonium bicarbonate per mu along with irrigation. Second, nitrogen deficiency, in which seedlings are thin and weak and grow upright, tillering is reduced, leaves are narrow and short, and the lower leaves gradually turn yellow and dry starting from the leaf tips and progressing upward. The key management point is to use urea per mu
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How to prevent and control yellowing of wheat seedlings before winter? The key lies in treating according to the condition of the seedlings
After barley and wheat are sown and emerge, due to the influence of adverse conditions and cultivation management, varying degrees of yellowing often occur before winter. There are many reasons for wheat seedlings turning yellow before winter, such as drought, insect pests, nitrogen deficiency and potassium deficiency, etc. The remedy should be applied according to the different causes, so as to promote the yellowing wheat seedlings to transform into strong overwintering seedlings. Drought-induced yellowing: in a dry winter year, with long periods of clear weather and no rain, soil hardening, and insufficient water, root extension is difficult, which often leads to yellowing of wheat seedling leaves, slow growth, and delayed tillering stage. For wheat seedlings yellowing due to water shortage and drought, timely watering for drought relief should be carried out. For drought relief,
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How to manage garlic before winter? These technical points must be mastered
1. Topdressing. Garlic has a high fertilizer demand. In addition to applying sufficient base fertilizer, at the 3-leaf stage, fertilizer must be applied once, with 2000-2500 kg of diluted manure water per mu, or 20-25 kg of ammonium bicarbonate mixed with 2000-2500 kg of water for drenching. When applying chemical fertilizer, it must not directly touch the garlic leaves to avoid burning. 2. Intertillage and hilling. Combined with topdressing, carry out intertillage and hilling once, banking fine soil from between the rows up to the base of the garlic seedlings, which can both prevent fertilizer volatilization and preserve soil moisture and prevent freezing. 3. Drought prevention. Garlic is afraid of drought, and drought will affect
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Key Management Techniques for Chinese Chives Before and After Winter Framing
Management Techniques for Chinese Chives Before and After Winter Framing
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