Key points of paddy field leveling and early rice planting techniques when early rice is in progress

The days in early April this year can be described as the transition from summer to winter, but after the 10th, the weather improved obviously and began to warm up, which also marked the beginning of early rice planting season in the south. Timely transplanting, proper application of basic fertilizer and improvement of planting quality are the basic links to ensure the high yield of early rice. for this reason, the editor sorted out some technical points for the farmers:

Early rice

First, the field should be leveled in time to ensure quality. The field should start ploughing with less water during the cold wave before planting early rice, and sow it early when the weather gets better. Fields ploughed by rotary tillers must be leveled and moderately muddy, leaving only muddy water. Mechanical transplanting of rice seedlings must be done after leveling and then be planted by machine for 3 days to ensure that the shallow planting is early. Throwing seedlings can be seen as the slightly heavier state of the field mud can be planted.

Second, apply base fertilizer scientifically to promote tillering. Early rice transplanting must promote tillering to ensure sufficient effective panicle in order to achieve high yield, so it is necessary to apply sufficient nitrogen fertilizer as base fertilizer. Generally combined with ploughing, 80 kg of ammonium bicarbonate per mu, 60 jin of calcium superphosphate produced in Zhuzhou, or 40% high content compound fertilizer 50 jin plus urea 10 kg 15 jin as base fertilizer. Ammonium bicarbonate and compound fertilizer were applied deeply during ploughing and finishing, while phosphate fertilizer and urea were applied on the flat field to improve the fertilizer utilization efficiency of early rice.

Third, improve the quality of planting and ensure high yield. Three to five days before early rice planting, taking advantage of the opportunity of opening the film to exercise the seedlings of early rice, urea 6: 8 per mu was applied to the seedling tray in batches according to the field throwing progress, and the "marriage fertilizer" should not be applied too early or too late to facilitate the early development of early rice after planting.

Planting early rice

Seedling throwing cultivation: when early rice seedlings reach three foot leaves, we should pay attention to throwing seedlings in sunny or cloudy days instead of throwing seedlings in the face of strong wind and heavy rain, so as to facilitate early seedling emergence in the field and prevent stiff seedlings. Second, planting should be thrown strictly according to the plan, and the amount of seedling tray in each hilly early rice field should be planned in advance according to the number of seedlings in each hilly field, so as to ensure that there are not many seedlings and many seedlings in each hilly field, and third, according to the conditions of the field, the seedlings should be thrown in time according to the soil properties of the early rice field, so as to ensure that the seedlings are not shallow or deep. Fourth, it is necessary to carefully throw the planting, try to throw it as much as possible, and if it is scattered, it should also be thrown three times, the first time, 70% of the whole field, the second time, 20%, and the third time, 10%, to ensure the uniform distribution of early rice seedlings in the field; fifth, to pick out the work line, generally every 3 meters or so, a work line should be picked out, so as to facilitate the operation of field pesticide application in the future. Sixth, it is necessary to set up seedlings in the open fields, and do not irrigate them for 3 days after the early rice is thrown away.

Mechanical transplanting cultivation: first, transplanting seedlings with a 7-inch transplanter, replenishing seedlings in time after transplanting, ensuring full transplanting per mu; second, grabbing sunny and early planting when the three leaves of early rice seedlings are fully unfolded, so as to improve tillering capacity; third, transplanting slowly properly to reduce plant injury and ensure the number of seedlings per seedling; fourth, remove the seedling plates lacking pieces due to rotten seedlings before transplanting, and divide the fields according to the appearance of seedlings to transplant early rice, so as to reduce the shortage of rice and promote balanced growth. Fifth, it is necessary to do everything possible to shallow planting, open field after planting to promote root growth, and improve the resistance of early rice.