If there is poor fertility during the growing period of sugar beet, the fertilizer will be topdressing if the base fertilizer is insufficient. According to many years of practice, the author believes that the later the topdressing, the worse the effect of increasing yield. Overdressing the fertilizer too late will also cause the beet to turn green and reduce the yield and quality. Normally, deep-coated fertilizer is applied by using a hole, and a 5-7 cm deep pit is drilled with a small hoe or shovel next to the beet seedlings by 5-7 centimeters. The fertilizer is buried in the pit. The amount of topdressing depends mainly on the amount of basal and seed fertilizers used, and on the growth of sugar beet plants. When the fertility is thin, or when the beet defertigation is severe, it is generally advisable to recover 15-20 kg of urea per mu. The top dressing time should end in early August.
The author believes that beetroot fertilization in the mid-fertification period not only uses roots to absorb soil nutrients, but also helps to diffuse low-concentration nutrient solutions into the body through the stratum corneum, stomata, and cells on the leaves. It can not only supplement the nutrients, strengthen the ability of the leaves to synthesize sugar, but also accelerate the transportation and storage of sugar from the leaves to the roots, and increase the tuber yield and sugar content. According to Wanquan County's beet growing area trials, dressing outside the beet root increased the root yield by 8-12%, the sugar content increased by 0.2-0.8 degrees, and the sugar production increased by 10-15%. The effect of increasing sugar production was significant. Fertilizer fertilizer concentration outside the root can not be too high. General potassium sulfate concentration of 0.6-1%, superphosphate 2-3%, potassium dihydrogen phosphate 0.2-0.3%, leaf area is small, the amount of fertilizer to be sprayed; tuber root sugar growth luxuriant foliage, field was closed, leaves Large area, spray fertilizer to more. In short, the amount of sprayed fertilizer solution should be 20-40 liters/acre. Outside the roots, we must choose sunny, wind-free weather and dry dew. The leaves are wilting at noon, and the ability of sucking fertilizer is weak. After the leaves have returned to normal, the extra-root dressing is continued.
The garden pansy is a type of large-flowered hybrid plant cultivated as a garden flower. It is derived by hybridization from several species in the section Melanium ("the pansies") of the genusViola, particularly Viola tricolor, a wildflower of Europe and western Asia known as heartsease. Some of these hybrids are referred to as Viola wittrockiana Gams ex Nauenb. & Buttler. For simplicity, the older name Viola tricolor var. hortensis is often used.
The garden pansy flower is 5 to 8 centimetres (2 to 3 in) in diameter and has two slightly overlapping upper petals, two side petals, and a single bottom petal with a slight beard emanating from the flower's center. These petals are usually white or yellow, purplish, or blue. The plant may grow to 23 cm (9 in) in height, and prefers sun to varying degrees and well-draining soils.
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