In recent years, extreme weather has become more frequent, and frequent occurrence of disasters such as cold, drought, and flooding, increasing pests and diseases, and lack of effective technologies for disaster reduction and reduction have become the limiting factors restricting rapeseed's ability to obtain high yields.

In the production of rapeseed, we recommend to the majority of farmers a natural plant growth regulator known as Bi-care from Germany. Because "Biao" contains a variety of plant endogenous hormones, it can effectively regulate the balance of plant nutrition and hormones, and has affinity with plants. A large number of production practices have proved that it can not only increase the yield of rapeseed but also improve the quality.

Use "Byou" to cultivate strong seedlings. Rape high yield cultivation of strong seedlings is the foundation, after the fall of the drought in case of drought, it is prone to lack of seedlings off ridge, uneven emergence, seedlings thin weak phenomenon. "Bi-guard" can promote the development of the root system, give the plant a strong root system, improve the ability of rape to resist drought, and achieve Miao-Qi Miao. Can be combined in the rapeseed (4 leaf stage) combination of insecticides to prevent cabbage worms, aphids and other pests, with "bi care" 7500 ~ 10000 times foliar spray, can improve seedling quality, promote healthy growth of plants.

For nursery transplanting rapeseed, if the slow seedling period is too long, it will seriously affect the early occurrence of rapeseed and reduce the rapeseed yield. After the transplanting, the “Biao” 15000-fold liquid is sprayed on the leaves, which significantly shortens the time for seedlings to lay the foundation for cultivating strong seedlings.

Can solve the problem of frozen rape damage. Rape is basically dominated by vegetative growth before winter and begins flower bud differentiation. Over-winter low temperatures often cause different degrees of frost damage in rapeseed leaves, which can cause intercellular icing and damage to the leaves. The frozen leaves are very fragile, and serious seedlings freeze to death. In addition to defensive measures, the winter water, earthworms and earthworms were covered in a timely manner, and fertilizers were applied at the same time. The "Bihuo" 5000 times liquid plus chitin was sprayed on the leaves to increase the cold resistance of the rapeseed and prevent the occurrence of freezing damage and recovery after freezing. effect. In Gansu Province, the effective cultivation model of “Winter rapeseeds shifting northwards” in Gansu Province has achieved encouraging results in pilot application of “Baihu”, which can significantly improve the cold resistance of rapeseed.

Flowers are not solidly controlled. The main reason for the failure of flowering in rapeseed is the deficiency of boron nutrition during flowering period. The effective measure to prevent rapeseed from being strong is the supplementation of boron to ensure adequate supply of boron nutrition during the flowering period of rapeseed. The borax solution with a concentration of 0.02% should be sprayed once at the seedling stage, bud stage and early flowering stage. Can also be used "big care" 15000 times liquid plus high-quality boron fertilizer foliar spray, can increase the absorption and utilization of boron fertilizer, improve the seed setting rate.

Prevent Sclerotinia. Sclerotinia is the most important disease in rapeseed production and can cause 1–30% reduction in rapeseed production. Rainfall during flowering is more likely to cause disease epidemics. Pharmaceutics control, selection of "Bi protect" plus nucleus net, carbendazim, thiophanate and other compound preparations, sprayed from early flowering to full bloom. "Bi-guard" can improve the efficacy of pesticides, inhibit germination of spores, and promote cell repair after illness. According to the Gansu Provincial Academy of Agricultural Reclamation, “Biahu” can significantly improve the resistance of winter rapeseed.

Improve the seed-setting rate to increase production. The yield of rapeseed is composed of density, number of effective pods per plant, number of grains per pod and 1000-grain weight. Under the condition of reasonable dense planting, the key to increasing the number of pods per plant is to increase the number of pods in one branch. The “Baihu” breeding seedlings increased the number of main stem leaves, increased the branching rate of one branch and promoted bud differentiation, thereby increasing the number of pods.

The substances required for grain filling of rapeseed are mainly derived from the photosynthesis of the keratinocytes and the vitality of the root system. “Biao” can increase the activity of Ru-bosico enzyme, the key enzyme of photosynthesis, increase chloroplast membrane permeability, and increase photosynthetic rate. It can promote the fullness of seeds and increase the grain weight. Spraying “Baihu” 7500~10000 times liquid and boron fertilizer during the bud twitching to flowering stage, promoting flowering, growing, and full grain, reducing the number of scabs and pods, increasing seed setting rate, rapeseed The increase rate of production is as high as 20%.

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