Red Fuji apple fertilizer management technology

I. Fertilizer management

Red Fuji Orchard, generally in late September the best base fertilizer, soil miscellaneous fertilizer, 2000 kilograms per mu saplings to kilograms of fruit 2 to 3 kg of fat prevail, per mu yield of 2000 to 3000 kilograms of high-yield garden to kilograms If the kilograms are subject to fruit weight, the high-yield garden with a yield of over 3,000 kilograms per kilogram will be subject to half a kg of kilograms of fruit and kilograms. When fertilizing, the proportion of fertilization before the results of saplings was nitrogen:phosphorus:potassium=2:1:0, the ratio of fertilization in the result period was nitrogen:phosphorus:potassium=2:2:1.5, and the fruit period was nitrogen:phosphorus:potassium = After 2:2:4, 15 to 16 years, the proportion of fertilizer was adjusted to nitrogen:phosphorus:potassium=2:2:1. In terms of fertilization methods, young trees can be planted and planted in furrows, and adult trees can be applied to fertilize or fertilize the whole garden. When fertilizing, pay attention to mix fertilizer and soil, apply fertilizer to the root system, and distribute it in the main distribution layer (about 40 cm). For the newly planted saplings from the second year onwards, combined with the use of basal fertilisers, deeper turning of the orchard can be carried out. The tree trays are deep-turned. The tree-pans are expanded year-round and deep-turned and the whole garden is deep-drawn. The depth is 40:60 centimeters. should. Fertilizer topdressing, juvenile tree in the spring tip to stop growing period and fall shoots for a long time can reach the supply of short shoot differentiation and accumulation of reserve nutrition. Prevent leggy, promote differentiation, reduce consumption, and expand accumulation. Results For the first time before the budding of the tree in March (planting 0.5 kg urea), applying a large amount of nitrogenous fertilizer and moderate amount of stubble fertilizer can promote flowering and pollination, increase the fruit setting rate, and can also promote the growth of spring shoots, fruit enlargement and flower bud differentiation, and increase yield. And the quality; the second time in mid-June, the topdressing of adequate amount of nitrogen fertilizer and more phosphate fertilizer can promote fruit set, but also can prompt the spring shoot to stop growing in time, which is conducive to flowering and fruit development.

Fertilizer spraying can be started about 10 days after flowering and sprayed once every 10 days. The mixture of urea and potassium dihydrogen phosphate (semi-hydrogen) can be sprayed for 3 to 4 times, which can promote the early emergence of leaves. Leaf and short-tipped leaves) The thickening of leaf surface and the subsequent spraying of 4 times of phosphorus fertilizer within one and a half months of harvesting can promote fruit coloration, improve the flavor, improve quality, and even spray nitrogen fertilizer, phosphorus and potassium fertilizer twice after fruit collection. Leaf senescence, improved leaf function and buds strengthen organic nutrient manufacturing, storage, and reduce the effect of early leaf fall, and the optimum temperature for spray fertilizer is 18°C~25°C. Summer is best performed before 11 o'clock in the morning and after 3 o'clock in the afternoon. In order to avoid high temperatures and phytotoxicity, spray fertilizer should be carefully and thoughtfully sprayed evenly on the front and back of the leaves, especially on the back of the leaves. To increase the absorption rate of nutrients, sticking can be added to the sprayed nutrient solution. Agents, such as neutral laundry detergent, etc., which will seriously affect the effect after spraying, and should be sprayed in a timely manner. According to the determination of heavy rain after 8 hours of spraying, the total amount of urea remaining on the leaf surface can be washed to 80% to 90%. The back of leaves is washed away by 40% to 60%.

Second, moisture management

The water demand of fruit trees can be divided into three stages in a year. The first stage is from March to mid-May, the second stage is from late May to early August, and the third stage is after the middle of August. Before the spring sprouts (March) Combining suitable irrigation with topdressing fertilizer is beneficial to stabilizing and raising the ground temperature, promoting the growth of the shoot and flowering fruit and fruit development, so that the relative control of vegetative growth can promote the differentiation of flower buds and improve the fruit quality. You can pour a winter water.

For non-irrigated conditions, dryland orchards can use winter seasons, transport water to plant trees, and currently used orchards covered with plastic film, grasses, straw mulches, hole storage mulch, water retention agents and other technical measures are economical and practical for regulating water use. The effect is significant.

DONALDSON Filters

Donaldson Air Filter,Donaldson Filters,Industrial Donaldson Filters,Donaldson Filter Element

Henan Sinofiltec Technology Co.,Ltd , https://www.airfilters.pl