Black plastic film cover cultivation yellow yellow worth promoting

The black plastic film covering cultivation of yellow rice is more cost-effective than 400 yuan per square meter, and the yield is increased by 6.7% or more. It has special effects such as increasing temperature, avoiding light, moisturizing and weeding. The methods of cultivation of soft yellow husks mainly include the method of cultivating pots, the method of softening the clay, the softening method of grass sheds, and the like. However, they all have the disadvantages of large labor intensity, many flowers and high cost. In addition, in South China, there are many spring rains, high humidity, and fall often encounter high temperature and drought in the autumn. Using the above methods to soften cultivation, it is easy to rot, and cultivation management is more difficult. In order to explore a softening cultivation method that is suitable for the climate conditions in South China, which is simple and easy to implement, with less investment and quick effect, the Caidou Township of Xiadao Town, Nanping City, Fujian Province began to use black plastic film covering cultivation trials in November 2001 for more than two years. The exploration was successful. Practice has proved that: black film cultivation of sorghum yellow than the conventional tile cultivating cost savings of 400 yuan / 茬, mu production increased by more than 6.7%, and the use of black film covering cultivation, with warming, dark, moisturizing, weeding and other effects, the effect is obvious, it is worth Promotion and application. The key technologies are: to eradicate the source of pests and diseases before the yellowing, to apply sufficient root-fertilizer and deep ravine sorghum, adopt ventilation measures to avoid high temperature and high humidity, and cover with multiple layers of black agricultural film to ensure light protection at all times and timely harvesting. In case of continuous rain and high temperature, it is necessary to remove the film at night to reduce the temperature and humidity and to avoid rot. The test report is summarized as follows: I. Materials and Methods The local 791-vegetarian cultivars were selected to be cultivated for the second year of life. The cultivar was selected from the agricultural sciences of Pingdingshan City, Henan Province. The conventional pot was used as the control for cultivar-yellow cultivars. The area of the test dish was 40 square meters (33.3). m 1.2 m), repeated three times. The yam test was conducted after the harvest of green bark every March-April and November-December. After harvesting the barley, 120 kilograms of mature manure and 10 kilograms of decomposed dry poultry manure are applied per 40 m2, loose soil promotes roots, and roots promote seedlings. After fertilization, in order to prevent underground cockroaches and gray mold, 800-fold plus 90% crystal trichlorfon 600 times plus 40% rust repellent 600 times liquid once. Clearing the soil in the garden, first remove the rotten leaves and other debris on the leek, and apply the soil to cover the ridge when the buds sprout 2 centimeters. The thickness is about 6 centimeters and the depth of the ravine is 30 centimeters to facilitate the seepage of the raft. If the soil is poor in sand, it can be mixed. Into the amount of fine sand, improve soil permeability. Bracket cover film, along the dish every 60 cm arch a bamboo piece, a small arch roof height of about 50 cm, covered with three layers of black agricultural film pressed along the edge of compaction. Before covering the membrane, prepare a bamboo tube with a diameter of 6-8 cm and a length of 50 cm. Remove the inner section and place a bamboo tube horizontally along each side of the vegetable bowl every 5 meters. Place one head toward the inside and the other end outside the shed. For ventilation in the shed. Yellowing usually takes 12-15 days to harvest. It takes too long and is of poor quality, easy to age, and susceptible to mildew. When the temperature is high, it can be harvested 8-10 days. Harvesting should be carried out in the dark in the evening. Continued film shading that was not harvested the same day. Second, the results and analysis 1, the output situation. In April and December 2001, the experimental results showed that the black film covered the cultivation of yellow glutinous rice, the average yield of 40 square meters was 111.2 kg and 128 kg respectively, and the output of tile broth breeding was 104.2 kg and 116.6 kg, respectively. The former produced 7 percent more than the latter respectively. Kilograms and 11.4 kilograms were increased by 87.5 kilograms and 142.5 kilograms (according to 500 square meters planted on land per acre), an increase of 6.7% and 9.8% respectively. 2, employment situation. Tile drums of 40 m2 require 360 drums. Every night at night, tiles at the top of the tile should be opened for ventilation. At the time of harvesting, it was necessary to relocate the tile barrels and the labor intensity was high, and the black film yellowing basically stopped working after the filming. Comparing the two, a difference of at least 3 working days per mu of glutinous rice should be cultivated. 3, investment benefits. The black film is used to cultivate yin yellow 40 square meters, 4.2 kilograms of membranes cost about 35 yuan, and tile yam requires 360 watts per 40 square meters, one-time investment is about 846 yuan, black membrane can be used at least 4 tons, each茬 Calculated investment per acre is 110 yuan, while the use of tile drums is calculated at 20茬 for 5 years, and 528.75 yuan per mu per acre is needed. The difference in investment is 418.75 yuan. Calculated according to the above-mentioned increase of 6.7% and 9.8%, respectively, the black-yellow-breeding cultivars increased by 290 yuan and 535 yuan respectively. China Agricultural Network Editor