What are the effects of environmental conditions on the growth of rice at heading and fruiting stage

That is the tillering period or seedling area, at this time you can foliar top dressing, you can choose powder potassium dihydrogen phosphate + amino acid foliar fertilizer, which helps rice tillering more, firm filling enough, reducing hollowness, increasing yield, rice in the middle and late stages of using this ** effect is better, the early stage is useless.

Pay attention to the method when fertilizing, first of all, pay attention to the growth of rice when fertilizing, and judge whether fertilization is needed according to different growth conditions. Secondly, we should pay attention to the amount of fertilization, which requires us to fertilize according to the fertility of the rice field and the growth of the rice, and you can choose to fertilize the water-soluble fertilizer.

In fact, there are not many types of fertilizers used in rice, and they are all targeted fertilizers according to different stages of growth and development. Generally, it is compound fertilizer, urea, silicon fertilizer, microbial fertilizer, potassium fertilizer, organic fertilizer, phosphate fertilizer and nitrogen fertilizer. However, nitrogen fertilizer must be used in moderation, otherwise there may be dead seedlings, and the taste of the rice will be very bad at the end.

When fertilizing, try to take the method of side deep fertilization, so that the first benefit of fertilization is to improve the utilization rate of fertilizer and reduce the amount of fertilizer. The second is that it can promote the growth and development of rice. The third is that it can reduce the disease rate of rice, reduce environmental pollution and increase yields.

When using side deep fertilization, it is necessary to pay attention to the distance between rice, the proportion of fertilization and the soil of the paddy field.

<>1. Temperature: During the planting period, the ambient temperature can be controlled between 30-32, and the water temperature should be controlled between 32-34. 2. Lighting:

It is usually necessary to ensure that the rice receives at least 6 hours of light per day. 3. Water: Inject an appropriate amount of water into the paddy field after transplanting, keep the water level at 2-3cm, and adjust the water level to about 8cm during the growth period.

4. Nutrients: Apply fast-acting nitrogen fertilizer 2-3 times in the growth period.

1. What are the requirements for the growth environment of rice, with growth conditions

1. Temperature. The warm environment is generally more conducive to the growth of rice, and the temperature of the environment needs to be controlled between 30-32 and the water temperature between 32-34 when planting, which is helpful for improving the survival rate of rice.

2. Lighting:Generally, it is necessary to ensure that rice can receive at least 6 hours of light every day, so that it can better photosynthesize and promote the growth of plants more vigorously.

3. Moisture. 1) When rice enters the tillering stage, it is more sensitive to water, and if the amount of water in the field is too small, the branches and leaves will turn yellow.

2) Usually after transplanting, an appropriate amount of water can be injected into the paddy field, which can generally keep the water level at 2-3cm, and can generally adjust the water level to about 8cm during its growth period.

4. Nutrients. 1) Sufficient nutrients can generally make rice grow higher, and it can generally be reasonably applied with fast-acting nitrogen fertilizer 2-3 times during its growth period.

2) Foliar spraying of potassium dihydrogen phosphate or phosphorus and calcium peracid can be applied at the tillering stage, which is helpful to increase the yield of plants.

Second, how to grow rice

1. Seed treatment.

1) Put the seeds on a wooden board to dry on a sunny day, and turn them with a shovel about 3 times a day for a total of 2-3 days.

2) Pour the seeds into the water and remove the empty and deflated grains that float up.

3) Soaking: Soaking seeds in the environment of 20 for about 5 days, change the water 1 time in the first 2 days of soaking, and then change the water 1 time a day, it should be noted that the seeds can not be soaked in water for a long time when soaking seeds, usually can be combined with the addition of an appropriate amount of pesticides to prevent and control pests and diseases, and the time of soaking seeds with pesticides can be mastered.

4) Germination: Put the seeds in the environment of about 30-32 to germinate, when more than 80% of the seeds can be lowered to 25-28 after the chest, and then the temperature is lowered to 15-20 when the buds grow to 1-2mm for germination, usually can be dried for about 6 hours, and at the same time, the seeds generally need to be turned 1-2 times a day to make the seeds evenly heated.

2. Sow seeds. 1) First of all, prepare the seedling board, the width of the seedling board is generally about the left, and the depth of the ditch is about 20-30cm.

2) Then sprinkle the seeds on the seedling board, if it is a conventional seed, the sowing amount is generally mu, and the dosage of hybrid seeds is generally mu.

3) Then cover the arch film and transplant when the seedlings grow to 8cm.

The normal growth and development of rice has requirements for light, moisture and temperature. The field should maintain a shallow water layer, drought can cause heading difficulties, pollen vitality declines, can not pollinate normally, too much rain is not conducive to flowering pollination, flowering period to sunny and warm breeze is better.

The requirements for the environment are that the environment should be very humid, there should be very sufficient water, the ambient temperature should be high, there should be very good water source conditions, and the sunshine duration should also meet the corresponding standards, which is all the requirements for the environment.

There are particularly high requirements, the temperature must be controlled between 23 degrees and 28 degrees, the soil must be particularly fertile, the drainage must be guaranteed, the ventilation work should be done, the light time should be ensured, and the humidity should be controlled at about 70%.

The heading period of rice varies depending on the variety, so there are differences in the specific heading time, such as the heading period of early rice is from early June to late July of each year, and the heading period of late rice is early October of each year.

The heading period of early rice is from early June to late July every year, the heading period of medium rice is in early September of each year, and the heading period of late rice is in mid-October of each year.

When the rice enters the heading period, it is necessary to decide the fertilization according to the soil fertility, weather conditions, plant growth, etc., if the temperature is low and rainy, or the soil fertility is high, the leaves are not yellow, and the disease is heavy, then do not fertilize, so as not to cause fertilizer damage to the rice, and in addition to the heading and flowering period, the field should maintain a water layer of three to five centimeters.

Rice in the heading and flowering period, easy to be infected with rice blast, rice koji disease, sheath blight and other diseases and insects, so during the maintenance period, to check the growth of the plant in time, if there are diseased leaves, need to spray the corresponding agents in time for control, and in the process of spraying, to avoid the flowering time period of rice.

When the rice ears are golden yellow in color and full and low-hanging when they are harvested, the plants are generally bundled up one by one, and then cut with a sickle, and then use a threshing machine to separate the rice ears, or use a harvester to roll the rice ears into them, and directly separate the rice and rice stems.