Spinach pollution-free drug technical specification
1. Cultivate disease-free strong seedlings
(1) Seed selection: It is advisable to choose good spinach varieties with high yield, high quality, resistance to diseases and insects, strong resistance to stress, wide adaptability, and high yield. Seed quality meets the requirements of GB8079-1987 improved varieties. Refuse to use transgenic spinach varieties.
(2) Seed treatment: The spinach seed is a cytoplasm, and the outer layer of the spinach is a parenchyma, which can be ventilated and permeable, while the inner layer is a corked thick-walled tissue. It is hard and impervious to water and germinates slowly, especially at high temperatures. Sowers even worse at low temperatures. Spinach is mostly broadcast live. When planting in the volt, the skin can be soaked with a mallet and soaked, germinated, or soaked in cold water for 10 to 12 hours, then spread in a cellar or suspended on the surface of the water in the well. Seeds should be soaked in warm water at low temperature and germination should be done at 15-20°C.
2. Pest control after sowing
Spinach is a typical green leafy vegetable, and is also a typical nitric acid nitrogen vegetable. However, in order to ensure the quality of green leaf spinach, reduce the pollution of nitrate nitrogen, reduce the enrichment of nitrate in green leaves, should pay attention to the application of NPK fertilizer, reduce N fertilizer Dosage.
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