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What symptoms appear when tomatoes are deficient in boron?
When tomatoes are deficient in boron, the new leaves stop growing, and the plant takes on a stunted, wilting state. The small leaves lose their green color and turn yellow or orange-red, the growing point darkens or turns black, the tips of young leaves turn yellow, the leaves become deformed, the old leaves turn a deep green, and the leaf stalks become thickened and brittle; in severe cases the leaves and growing point die, the stems bend, and the inner side of the stem develops brown, corky cracks. The fruit surface develops corky cracks.
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What fertilizer works well when applied before the plum tree blooms?
Before the plum tree blooms, apply 25 kg each of ammonium bicarbonate and potassium dihydrogen phosphate per mu to encourage the plum to bloom and set more fruit. From the young fruit stage to the ripening stage, apply 25 kg each of urea, diammonium phosphate and potassium sulfate per mu. After the fruit is harvested, apply 50 kg of urea per mu. In September, apply high-quality coarse fertilizer per mu
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When is the best time to top-dress winter wheat?
Winter wheat should be top-dressed at the seedling stage, overwintering stage, greening stage, jointing stage, booting stage, and after heading. Apply farmyard manure at the seedling stage, ammonium bicarbonate or urea from the overwintering stage to the booting stage, and urea after heading. If the base fertilizer and seed fertilizer are relatively sufficient, there is no need to top-dress at the seedling stage;
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When should jujube trees be sprayed? What pesticide is best?
In mid-to-late June, spraying once with triadimefon or thiophanate-methyl can prevent rust disease; in early July, spraying mancozeb and carboxin once every half a month can prevent fruit shrink disease; in late July, spraying once with Bordeaux mixture can prevent anthracnose. After sprouting in spring, before leaf curling, use dichlorvos plus
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When to Plant Bottle Gourd? Master the Best Sowing Time
When bottle gourd is grown in a greenhouse, it is suitable to sow in early to mid-January; in a plastic tunnel, early to mid-February; and for open-field cultivation, early to mid-March. For open-field autumn sowing, sow in early to mid-July; in a greenhouse, sow in early to mid-August. After sowing and raising seedlings, transplant at the right time,
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When is the best time to fertilize garlic during the green-up stage?
The fertilizing time for garlic at the green-up stage can be scheduled after mid-March. After March, temperatures will rise somewhat; avoid watering on clear sunny days, as watering in the afternoon is more beneficial for the soil and the garlic. Fertilizing time for garlic at the green-up stage 1. Do not water for green-up too early; if
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When to Plant Gourds: Planting Time and Method Explained in Detail
The sowing time for gourds is usually chosen in spring, with the specific time preferably around Qingming Festival. Before sowing gourd seeds, soak them in warm water for about 20 minutes, then wrap the seeds in moist gauze or toilet paper and place them in a container, placing
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When Does Clivia Usually Bloom? Analysis of the Reasons Why It Does Not Bloom
Clivia is a very beautiful ornamental flower, also known as Clivia miniata, large-leaved lycoris, sword-leaved lycoris, and Damulan. Its blooming colors are very striking, and its leaves are thick and orderly. There are many varieties of Clivia, and nowadays they are mostly grown by people as potted plants at home to beautify
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When to plant tobacco? An introduction to the best planting time
Tobacco is divided into spring tobacco and summer tobacco. Spring tobacco is generally planted in spring, and sowing can be carried out successively in February and March. Summer tobacco in the south is planted in April and May. However, due to regional climate differences, its planting time also varies. For example, in the Guangdong and Guangxi region and the Fujian area, tobacco
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When Is the Best Time to Plant Tomato Seedlings? A Detailed Guide to the Best Planting Time
Spring tomato seedlings are generally planted in February, autumn-winter crop tomato seedlings are generally planted and raised in July-August, winter-spring crop tomato seedlings are planted in November to early December, and overwintering crop seedlings are planted and raised from mid-to-late September to October. Generally, seeds sprout 3-4 days after sowing, and once two or three
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