It's also called oil sunflower. The main effect is to extract oil, which, as one of the four largest oils in our country, is cultivated on a wide scale and produces very healthy oil. So what's the technology for sunflower growing? Then sing safety nets for you。
Plantation of sunflower
1. Soil selection
The roots of the acacia are large and deep, and growers are better prepared to roll down or re-introduce the ground on a rotational basis. The depth of the tillage should increase gradually every year, with a depth of 20-25 centimetres before seeding, followed by the fertilizer of farmers per acre — calcium per phosphate, ammonium, potassium sulphate, three-dollar compound fertilizer, etc. — which ensures soil fertility and avoids the depletion of nutrients from the continuous planting of the acacia soil, resulting in severe disease, small-scale planting, small flosssettes, easy early decay, large empty particles and reduced yields。
2. Choice of varieties
Mixed sunflower seeds are better oil-producing, productive, disease-resistant, pre-literate, adaptable and suitable for local cultivation, such as the united states of america, which has a small head of 567dw, 667dw, etc。
3. Select the right time to sow
The acorn is a very low-temperature plant that growers can sow at an early stage with guaranteed seedlings and, in the case of membranes, before, after and around march; naked seeding can take place between late march and early april, with ground temperatures stabilizing at more than 10 degrees; summer planting can take place from late june to early july。
The sowing of sunflowers is conducted at an equal distance, generally at a distance of about 60 cm and a distance of around 30 cm. In addition, the density of seeding is determined on the basis of soil conditions, with around 4,000 seedlings per acre of fertile land, not so deep as to sow, usually at about 3 to 5 cm。
4. Irrigation management
The sunflowers are more resilient to drought and generally require less water and are more suitable for seedlings and for root growth. The flowering and flowering period of sunflowers is a critical period for water, and should be watered in a timely manner in the event of drought, but the sunflowers are drought-resistant and flood-resistant and, when rainfall is high, should be drained in a timely manner。
5. Pest management
In addition to the early use of bait to trap the insects, and in the late mid-term, the control of sunflower worms can use high-efficiency chlorohydro-urethane lactate spray to prevent pests and diseases. In addition, bacterial nuclei is the main disease that affects sunflowers and should be sprayed in a timely manner by the grower when found。
This is a small compilation of knowledge of sunflower cultivation, which i hope will help interested you. Would you like to know more about sunflower? Please follow the next update of the singing safety net。
