1. The timely sowing of broad Beans before the crop is generally dry crops, according to the actual situation in the region, the appropriate sowing date should be in the middle and late October, as the latest green manure no more than November 5.
2. Precipitated Seeding The large area of ​​actual planting in the Songjiang area is mostly rice-plate hoe. Due to the constraints of the mature period of the previous single-season single-season rice, the sowing time is forced to be postponed. In order to win the season, the single-season late rice will be harvested in time after ripening. After soaking germinated broad bean seeds (except broadcast), strive to early sowing, early emergence, in order to help strong seedlings and enhance cold resistance.
3. Reasonable dense planting According to the production practice, the seeding rate of green broad bean beans is higher than that of fresh broad bean. Manually inserting one small seed per hole is generally 8 kg per mu, and sowing seedlings can be appropriately increased.
4. Seeding method
4.1 Manual insertion: Sows are sowed by pulling ropes, which are two meters wide and three rows wide. The hole spacing is 20 centimeters, the planting depth is 2-3 centimeters, and the earth is covered after sowing.
4.2 Spreading and cultivating shallow ploughing: About one week before rice is harvested, the broad bean seeds are sowed. After the harvest, shallow cultivators are used to ditch and cover soil, and the ditch is cleaned. To reduce dew, pay attention to seedlings.
5. Appropriate amount of fertilized green manure is not without fertilization, appropriate and timely fertilization can promote growth, increase fresh weight, increase fertilizer efficiency, fertilizer and fertilizer. After the single crop of late rice is harvested, 30 kg of superphosphate and 20 kg of ammonium bicarbonate are applied per acre to sow early emergence, early branching and enhanced cold resistance.
After the beginning of spring, depending on the growth of the field, suitable topdressing, generally 20-25 kg of ammonium per acre, to promote growth.
6. To strengthen the management of the growth of broad beans most afraid of water, the supporting work of the trench system is particularly important. After sowing, the ditch should be cleaned up in time to ensure that the drainage is unimpeded, so as to avoid dead roots. After sowing, in case of continuous drought, furrow irrigation shall be conducted in time to resist drought, and after the topsoil is infiltrated and moistened, the accumulated water shall be eliminated immediately.
7. Grasping the plough time of cultivating and using green manure not only affects the yield and quality of the fresh grass, but also affects the growth and development of the crop. When the general temperature is between 12°C and 18°C, 15-20 days after the cultivation of green manure, a large amount of nutrients is released. It is not possible to adversely affect the germination of post-cultivated rice seeds when the proper tillage period is mastered. In addition, the requirements for the growth season of green-fertilizer hybrid rice must not be too late for the green manure season and the yield of fresh grass should not be too high.
Vicia faba bean has the highest fertilizer efficiency at full flowering stage, and is most suitable for flowering at the flowering stage (usually before and after Ching Ming). The faba bean fresh grass is determined according to soil quality, farming conditions and planting methods. Generally, it is appropriate to use about 1500 kg per acre. The principle of unequal amounts and unequal hours should be adopted till the end of April at the latest. In terms of specific cultivation time, it must be determined according to the temperature, soil temperature and soil texture, etc. It is best to choose sunny days when cultivating, and adopt the method of ploughing and hoeing after the first dry cultivation.
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