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The prevention methods of blue Cauliflower
回答公司:  添加時(shí)間:09年02月17日  點(diǎn)擊數(shù):
1. Choose not empty stem varieties of it is empty stem one of the most effective option of a West orchids, orchids West champions, the Green on the 2nd US West and other varieties of orchids.
2. Appropriate arrangements for the cultivation period in planting broccoli, it is necessary to avoid the heat-growing event, in accordance with the selected varieties growing period for timely sowing, nurturing seedlings, timely planting.
3. Gelimizhi used by the species in accordance with the characteristics of Gelimizhi. Generally speaking, the appropriate Zhuju 30 ~ 45 cm, spaced 60 to 70 cm.
4. Fertilizer plant broccoli management to block the election of a good drainage and irrigation in the soil before planting of nutrition, in order to determine the types and fertilization of fertilization.Management always maintained see stem see wet soil in arid regions and the Northern spring planting period, the general requirements every five to seven days, water pouring 1.
Although broccoli for the normal growth of a certain proportion of nitrogen fertilizer application is needed, but it should be avoided in the flower-growing excessive application of nitrogen fertilizer. Shih full maturity of the compost to base fertilizer, watering can with nitrogen fertilizer per 1000 m2 topdressing 13 kg, a small amount of the principle on many occasions, in the flower-growing fertilization should have little or no N fertilizer application, the application rate increase Lingefei .
B deficiency of the soil, Oxfam per 1000 m2 for the base fertilizer Boron 0.75 kg, 0.75 kg for reuse or Guangen topdressing.
5. Organ harvesting broccoli products is already a flower-bud formation, harvesting premature curd not fully grown up, the output low, too late empty-forming stem, and flower-ball loose, dry buds lose their value of the goods, it is necessary to timely harvest. Generally speaking from the curd is required to harvest 10 to 15 days, the harvest standard curd diameter from 12 to 15 cm, curd close, bud no yellow or necrosis.
 
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