Cotton Association Of Xiantao: Investigation And Analysis Of Cotton Peach

13-15 August, Xiantao Cotton Association The cotton growth survey of four cotton professional cooperatives, such as Xing long, Chang Kou Zhen Ji Mu, Zhang Gou Zhen Xin Sheng, Zheng Chang Zhen Lian Yu, and so on, were carried out in cotton fields in Yang Lin tail town. The cotton growth survey was carried out on the basis of the peach investigation. Administration The measures are summarized as follows:

(1)

The results of the survey were: the cotton planting area of the professional cooperative in the city was 118353 mu, the density of Mu was 1667, the plant height was 134.3 cm, and the fruit branch was 19.6. The individual plants had 11 peach, 8.8 peach, 2.9 flower, 42.5 bud, 20.9 abscission, and the abscission rate 24.3% (the total fruit section 86.1). The result is "three increase, four reduction, one level and two rise" compared with the same period last year. Three increase: Mu density increased by 27 plants, individual plants increased 0.5 flowers, single plant buds increased by 14.94; four reduction: plant height reduced 0.6 centimeters, single plant peach reduced 9.23, single plant reduced peach 4.25, it is estimated that the annual yield of Mu peach reduced by 5116; one level: fruit branch level was flat; two increased: the number of single plant abscission increased by 9.09, and the rate of abscission increased by two percentage points.

(two)

From the above findings Analysis The main reason for this year's cotton less peach is less than that of last year. First, the delay of planting and transplanting delayed the growth of cotton. Two, the heavy rainstorm continued in July, which not only delayed the cotton growing process, but also caused cotton to suffer from different degrees of disaster. Although the cotton growth is very unfavorable in the past few years, as long as we adopt appropriate cultivation measures and strengthen management, and the weather is normal in the later period, this year cotton is still struggling for high yield. Many, medium and later periods of rainwater, such as autumn and high winds, are still available in the late September. The two is to observe the growth of the peach blossom. The second is to observe the growth of the field. Cotton growth is generally delayed. Although the single plant is short of peach, the high yield rack has been built up and has enough growth. As long as the normal climate is in the late stage, the cotton can fight for early and late autumn peaches, and the peach is lost. The peach is still filling up. The three is from the cotton growth characteristics, because the cotton has unlimited growth habit, plasticity, and self compensation ability. Although the peach in the middle and lower part is shedding seriously, so long as the field is properly managed, it can carry out the peach filling inside the peach, and the peach in the middle and lower part will be damaged. First, from climate analysis, historical experience of cotton growth before and after rainwater.

(three)

According to the survey of fertility this year, we averaged 125 peach 1 jin seed cotton and 38% lint percentage, and estimated that the professional cooperative cotton lint yield was about 78.6 kilograms. If the climate is normal and the field is well managed, the yield will still increase.

current cotton In the field management, we should focus on preserving peach, fighting autumn peach, fighting heavy bolls and preventing rotten peach. We should focus on the following six points:

1, chemical control for cotton fields with long delayed growth and no regulation or regulation after topping, in the near future, in the near future, the spray of 15-20 ml or 4-5 kg of water can be used to control the buds effectively, reduce the shading, enhance the resistance and light transmittance of cotton plants, enhance photosynthesis and promote the transfer of nutrients to cotton bolls.

2. Cotton is generally delayed in pruning and beating leaves, and some fields meet with fertilizer and water. The ventilation and light transmission conditions in the field are poor and the humidity is high. This year, it is particularly important to prevent the rotten peaches below. It is necessary to empty branches, old leaves and remove buds in the overgrown cotton fields, and to remove the side centers, reduce the shade degree of cotton fields, improve the ventilation and light transmittance conditions in the cotton fields, and reduce the humidity in the field.

3, foliage dressing this year cotton input is generally low. Therefore, in combination with pest control, foliar application of 1% urea or 1% urea +0.2% potassium dihydrogen phosphate mixture is generally carried out, 5 to 7 days at a time, 3-4 times continuously, in order to increase leaf functional period and increase boll weight. For boron deficient farmland, 0.2% of the power boron was applied to ensure the growth of cotton plants.

4, grab dangerous peach rotten peach for overgrowth, the lower part of the overshadowed field, we must promptly grab dangerous peach, rotten peach, control the spread of pathogens, and reduce the extent of loss.

5, timely drought and drought in the near future, and severe drought in some parts of the country. Therefore, where conditions permit, we should organize pumping water to fight drought. We must mobilize cotton farmers' Peach water to fight drought in unconditionally, so that we can combine fertilizer and water to bring the effect of fertilizer into full play.

6, thoroughly prevent insect pests according to different pest control standards, select pesticides and prevent them in time. At present, the focus of pest is Spodoptera litura, blind bug, the fourth generation of cotton bollworm, red spider and so on. At the same time, we should not neglect the control of other pests. The pests should be eliminated in the early incubation period to ensure the harvest of the cotton.