During the period from the emergence of wheat to wintering, the focus of field management is to strengthen the management of three types of seedlings, promote balanced growth, make weak seedlings, strong seedlings grow stronger, and strong seedlings grow steadily, laying a good foundation for high yields.

Wang Miao management Wang Miao is generally caused by factors such as good soil fertility, adequate fertility, good sensation, early sowing, and high density. For Wang Miao, which is caused by adequate fertilizer and good sensation, deep-middle-cultivation should be adopted to cut old roots, promote new root shoots, regulate the absorption of nutrients, reduce spring delivery, prevent leggy, and promote the development of large pods. For vigorous seedlings caused by excessive density or early planting, seedlings should be seeded in a timely manner to establish a suitable population structure so that individuals can fully develop. Where conditions permit, paclobutrazol can be used to control the length of the wheat seedlings. Generally, 15% paclobutrazol wettable powder 50 to 60 grams per acre is sprayed before wintering.

Weak seedling management Weak seedlings are mainly caused by factors such as late sowing, poor soil preparation, low soil fertility, and lack of lyrism. For weak seedlings caused by low soil fertility and lack of lye, management should be strengthened to ensure early management and early watering, watering after topdressing, timely cultivating tillage, promoting root growth and tillering, and weakening the weak seedlings. Generally in the wheat 3-leaf stage, 5-7 kg of urea per mu and 2,500-3,000 kg of farmyard fertilizer are mixed and applied. For the weak seedlings caused by late seeding, except for the severely defective plots, they are generally not watered, so as not to cause a drop in ground temperature, which is not conducive to the emergence of seedlings. For late-seeding and poorly-graded wheat fields, cultivating soil should be timely and 2,000 to 3,000 kg of organic fertilizer should be applied per mu.

Strong seedling management is not enough for the base fertilizer, but good seedlings with good seedlings in the wheat fields should be supplemented with fertilizers to avoid the transformation of wheat seedlings into weak seedlings. If there is sufficient base fertilizer but there are serious running problems and there is a lack of strong seedlings in the wheat fields, the cultivator shall loosen the land and protect the earth. In severely-deficit seedlings, wheat fields should be filled with water and irrigated with water after cultivation. At the end of the fertility, good sensation, timely seeding seedlings of wheat, generally do not have to fertilize, as long as the crop is protected.

Greenhouse Garden Hydroponics

In a hydroponic system, plants are placed in nutrient-enriched water. Mediums such as gravels, sand or vermiculite can also be used. Thus plants which are placed in the water absorb the nutrients very easly. When the nutrients from the water starts finishing , water is recycled or additional nutrients are added.

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