Concrete Scarifier,Scarifying Machine Price,Concrete Scarifier For Sale,Electric Floor Scarifiers Shandong Storike Engineering Machinery Co., Ltd. , https://www.storikemachinery.com
<1> Diluted broadcasts in due course.
Most of the low-quality rapeseed genes were transferred from spring rapeseed varieties in foreign countries. The springness was strong. If sowing was too early, the density of poplars was too high, and the seedlings were thin and weak, and they encountered warm winter weather. Often the temperature has not yet fallen through the vernalization stage, which induces early moss early flowering phenomenon. Therefore, high-quality rapeseed should pay more attention to proper sowing and cultivation of strong seedlings.
1. Select coated seeds without self-cultivation.
Rapeseed is often a cross-pollination crop. Self-retained species, due to isolation and cultivation conditions, do not meet erucic acid and glucosinolate standards. Therefore, it is necessary to purchase high-quality rapeseed seeds that are uniformly provided by the company's rape seed consortium. These seeds are all coated and have good root and seedling growth effects. Seed purity, water content, and erucic acid and glucosinolate content all meet national standards.
2, appropriate sowing, thin broadcast uniform broadcast.
The seeding period of high quality rapeseed should be delayed about 5 days than that of conventional rapeseed, namely, sowing on September 25-30; when planting, the amount of sowing should be mastered. Generally, the sowing amount per mu is 0.1 kg (referring to Daejeon) and the maximum amount is not more than 0.15 kg; Must be diluted seeding sowing, seedlings per mu of stubble density of about 70,000 to 80,000 to ensure that the seedlings have a more suitable growth environment to prevent the occurrence of tall seedlings, thin seedlings.
3, to promote control and integration, with a lot of oxazole.
In the field management of high quality rapeseed during the nursery period, it is important to use the application of multiple and non-compound azoles as a routine technique to cultivate strong seedlings. The method of use is: when the rape is used for three leaves and one heart, use 15% paclobutrazol wettable powder 50 grams or 5% thinner azole wettable powder 10.8 grams per acre and water 50 kilograms. In case of dry weather, combine drought resistance to increase the amount of water to 75 kg.
<2> Transplanting heavy quality in due course.
In addition to grasping various conventional techniques when transplanting high-quality rapeseed, special emphasis should be placed on joint planting and timely transplanting. In recent years, Shanghai's winter temperatures have continued to be high. In early spring, the phenomenon of cold springs often occurs. This poses a threat to the spring rape of high quality. Therefore, in addition to cultivating and reproducing the relationship between the vegetative growth and reproductive growth by appropriate techniques such as proper sowing and cultivating strong seedlings in cultivation, proper transplanting is also a very important way. Production practices over the past few years have demonstrated that suitable transplanting period for high quality rapeseed should be before November 10th. During the period of transplanting, high-quality rapeseed seedlings are generally less likely to occur as early as early flowering, so they also avoid the negative impact of the late spring on rapeseed growth.
<3> Scientific fertilizer application.
High-quality rapeseed also has the characteristics of large plant type, strong spring development, etc. Therefore, fertilization should be adjusted to this characteristic. After nearly two years of trials and demonstrations, high-quality rape yields 150 kg per mu production level, generally requiring 15 kg of pure nitrogen, and do nitrogen, phosphorus and potassium with the application. The fertilization proportion should be slightly higher than that of conventional rapeseed a year ago. That is to say, the fertilization proportion should reach 70% to 75%, and the fertilization should be completed once a year. The application time of the nourishing fertilizer should be advanced to the budding stage to prevent the imbalance of nutrient growth caused by the excessive growth of the spring; the “Huyou 15†plant type is tall and has high yield, and the amount of nitrogen fertilizer applied for a lifetime should be appropriately increased to meet its output. The formation of the shelf.
(4) In addition to comprehensive prevention and control of "three evils."
The three problems that have a major impact on the yield of rapeseed production in Shanghai suburbs over the past years are: disease, grass damage, and waterlogging. Grass damage and waterlogging are both one of the main factors affecting the cultivation of strong rape seedlings. Weeding, ditching, and anti-staining are one of the basic contents of rapeseed cultivation techniques. For disease, the biggest threat is Sclerotinia sclerotiorum. According to the analysis of the survey data of several high-quality rapeseed varieties (lines) in the urban area and in the pilot test of the demonstration application, their tolerance to Sclerotinia sclerotiorum is close to that of Huiyou 50, but at present, the world has not yet cultivated an antibiotic. Nuclear rape varieties. Therefore, the prevention and control of sclerotinia should still be used as a key task. The number of prevention and treatment is better twice. Method of use: early flowering rape - beginning of the peak period, use 25% of ginkoshi Qingmu powder agent per acre 70 - 100 grams, or 40% sclerotium net wettable powder 1000 - 1500 times liquid. The second treatment was conducted 7 to 10 days after the first medication.
High-yield and High-quality Cultivation Techniques for High-quality Rape
In recent years, the development of high-quality rapeseed in China has seen a rapid development. However, the slow development in the lower reaches of the Yangtze River is mainly due to the fact that the yield level and disease resistance of the varieties are not suitable for the development of rapeseed production and development. In 1997, our city’s scientific research personnel have succeeded in breeding, screening, and identifying high-quality rapeseed varieties such as “Huyou 12â€, “Huyou 14†and “9715â€. During the demonstration trials in the past few years, the majority of scientific and technical personnel and farmers have explored and summarized a set of high-yield cultivation techniques for high-quality rapeseeds based on the growth characteristics of high-quality rapeseed varieties: