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Spring Peanut Cultivation Techniques

Spring peanuts have a relatively long growing period and do not require planting immediately after wheat is harvested, as summer peanuts do. Slight variations in the planting date—whether a few days earlier or later—have little impact, so it is essential to sow only after temperatures have stabilized.

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2019

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04

Causes of Peanut Empty Shells and Control Measures

High rates of empty peanut shells directly lead to a significant decline in both yield and quality, causing substantial losses to farmers’ incomes. So, what causes empty shells in peanuts? What are the underlying reasons, and what measures can be taken to prevent and control this issue? Let’s take a look. I. What Causes Empty Peanut Shells? 1. Varietal Differences: The large‑peanut varieties are more prone to developing empty shells, whereas the small‑peanut “pearl” types rarely exhibit this problem. 2. Geographical and Soil Factors: The main affected regions include parts of Jiangxi, Hubei, Jiangsu, Shandong, as well as certain areas in Henan and Hebei. The soils involved are typically acidic or slightly acidic, such as lateritic red soils and yellow-brown soils, which generally contain low levels of available calcium. For example, Wang Minglun of Qingdao Agricultural University conducted research on mountain…

15

2019

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02

Peanut Fertilization Techniques

Topdressing for peanuts should be determined according to soil fertility, the amount of base fertilizer applied, and the plants’ growth condition. Boron deficiency leads to fewer flowers, reduced pod formation, and a high incidence of pods with shells but no kernels; zinc deficiency causes yellowing of young leaves; and molybdenum deficiency results in fewer root nodules, impairing the plant’s ability to meet its nitrogen requirements and thereby reducing yield. At the same time, we must abandon the habit of relying solely on nitrogen fertilizers. Peanuts have a high nitrogen demand—not because the soil contains abundant nitrogen, but because they depend on nitrogen fixation by root nodules to capture atmospheric nitrogen, which in turn promotes the development of more nodules and higher yields. Hence, the agricultural proverb “peanuts thrive on poor manure” is not without merit. This means that when fertilizing peanuts, we should avoid excessive nitrogen application while supplementing with ample organic matter and micronutrients.

15

2019

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02

Peanut Moisture Management

1. Focus on drought resistance: irrigate at the critical flowering–pod-setting stage, when peanuts have their highest water requirements; drought significantly reduces yield. Late-season drought accelerates leaf drop and leads to premature senescence. Closely monitor weather conditions, and irrigate promptly whenever drought strikes. Typically, begin watering when you observe peanut leaves turning pale and wilting around noon, to promote flowering and pegging, ensure an adequate number of viable flowers and pods, encourage pod expansion, and lay the groundwork for full‑filled pods. After the pod‑setting stage, avoid watering during the intense midday heat; instead, apply water along the furrows before 10 a.m. or after 3 p.m. to prevent peg rot and pod rot. Do not use flood irrigation. 2. Drain excess water promptly,

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2019

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