1. Benefits of Orchard Grass Mulching Many fruit orchards cover grass are practical measures to improve fruit yield and quality. Grass-covering period: After spring, top dressing, watering, or wheat harvesting, grass cover before the rainy season. Method: There is an orchard with crops, tree trays are covered with grass, and other gardens can be covered with grass. The raw materials are crop straws and weeds, with a thickness of 15-20 cm and 1500 kg per mu. Orchard mulching benefits can increase soil moisture content, reduce irrigation 1-2 times a year; increase soil fertility; eliminate grass and no-tillage, save manpower; prevent soil erosion; stabilize ground temperature and promote root growth; According to Beijing Pinggu County Fruit Office King The combined survey results showed that the yield of the Hawthorn Park increased by 10.5% compared with the control park, and the primary and secondary fruit rates increased by 11.3% to 18.6%.
However, the orchards in the plains and clays are not suitable for grass-covering, and the soil moisture increases after grass-mulching, which results in poor root development and reduces yield and quality. Also pay attention to fire prevention. Sprinkle some soil on the grass. Fire lanes should be left in the orchard.
2. The apple trees in the saline-alkali land cover the apples cultivated in the saline-alkaline soil. During the peak period of returning salt in the spring and autumn, the trees often show yellow leaf disease, even the tip of the charred leaves. In February of early spring, the tree plate was covered with grass, and the tree projection surface was covered with hay by 20 cm in thickness according to the projection plane of the tree crown. The trees were continuously covered with 1000-1500 kg of grass per acre. The advantage of tree-covered grass cover is that it can reduce the temperature difference between day and night of the soil and the temperature difference during the month, effectively maintain soil moisture, inhibit soil re-salting, reduce soil bulk density by 20%, increase organic matter content by 23%, and increase total nitrogen content by 7 %, increase production by 26%, reduce management workload.
3. Effects of rare earths on the growth and fruiting of black currant According to Liu Hongzhang's test, each year in the black currant (4-year-old “black pearlâ€), the leaves are sprayed twice a day for 15 days at the flowering stage. 800 mg/L rare earth (as a Changle phytoalexin produced by Heilongjiang Rare Earth Materials Factory) can significantly promote the growth of new shoots, increase growth, increase the leaf area, and increase the fruit setting rate, the whole fruit weight, and the individual plant. The yield promotes the absorption of nitrogen, phosphorus and potassium in the leaves.
4. Grape spraying urea late autumn According to reports from Su Kaisheng (1993), about 7% to 9% of the urea solution is sprayed on the leaves about 18 days before the defoliation of grapes, which can alleviate the contradiction between nutrients and competition between the growth and results of the huichun grapes. , To promote the growth of leaves, increase the rate of fruit set and berry quality.
5. Grape Formula Fertilization Technology Wang Baoliang et al used 6-year-old “Rose-scented†grapes as experimental materials to study the techniques of formula fertilization of grapes. Each year, 15 kg of pure nitrogen, 7.5 kg of phosphorus, and 22.5 kg of potassium are applied to the grape. The fertilizer will be mixed twice in mid-May (7-10 days before flowering) and in early June (7-10 days after flowering). Apply into the ring groove, the depth of the trench is 20 centimeters.
6. Water-saving technologies for fruit tree irrigation and irrigation Most of the orchards in China are in dry land or under no irrigation conditions, and the yield and quality of fruit trees cannot be guaranteed. According to Song Kaiping (1993), a kind of seepage irrigation technology, the infiltration irrigation pipe is made of clay, with an internal diameter of 20 cm, a length of 35 cm, and a wall thickness of 3 to 5 cm. Each pipe has 9 slanted holes with a hole diameter of 2 mm and is evenly arranged on the pipe wall in 3 rows. On each side of the fruit tree, one meter of each pipe was laid, and ditches of 60 cm in depth and 50 cm in width were dug. The pipe along the ditch was connected one after another, and the joint was sealed with white plaster. The grass is tied around the pipe, and the ground and underground openings are left at both ends. The ground floor is made of bricks and bricks for irrigation. The underground mouth is used for drainage in the rainy season. When water is poured, the gauze is filtered, and after filling, it is sealed with a flat stone or wood board.
7. Effect of Potassium Fertilizer Application on Fujiminori Grape According to Wu Lin (1996), K2SO4 (containing K2O50%) was applied in mid-June, which was applied on the hole and covered with soil and combined with irrigation. The suitable amount of potash fertilizer for 4-year-old Fujiminori grape is 200 g/plant. Potassium fertilizer applied to grapes can increase the yield and quality of berries and promote the ripening of shoots.
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Germination rate
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More than 90%
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Growth temperature
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18 to 32 degrees
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Resistance
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Cold resistant
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Tags
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Cultivation points:
Best grow temperature:18 to 32 degrees
Sowing dosage:0.4kgs/667m2
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