<\/p>\n
The maturation of rice<\/a> This is a crucial step in determining the harvest time and preserving grain productivity and quality. Between June and December, irrigated rice producers need to monitor crop development, weather conditions, machinery availability, and the risk of lodging to reduce losses and organize operations.\n<\/p>\n\n<\/div>\n\n<\/div>\nRice maturation corresponds to the final stage of the cycle, when the grain completes its filling, progressively loses moisture, and acquires more stable physical and chemical characteristics.<\/p>\nIn practice, two stages are important: physiological maturity and harvest maturity. Physiological maturity occurs when the grain reaches its maximum dry matter accumulation. From this stage onwards, there is no weight gain in the grain, only a reduction in moisture.<\/p>\nIn rice, this stage can be identified by the formation of a black or darkened layer at the base of the grain, next to the pedicel. In the field, however, criteria such as panicle color and the percentage of mature grains are also used. Harvest maturity occurs when the grain moisture allows for mechanical processing with minimal losses and good quality of processing.<\/p>\nIn irrigated crops, the practical recommendation is to observe whether most of the grains in the panicles are already mature, with few green spikelets, while the plant has a predominantly straw-colored appearance.<\/p>\nThe color of the panicles and plants is one of the main visual indicators. As the crop matures, the panicles change from light green to straw-yellow, while leaves and stems progressively dry out.<\/p>\nA crop nearing the ideal stage tends to have more than 80% of panicles with a straw color, without large areas of intense green in the canopy. The grains, however, do not all ripen at the same time. Typically, those located in the upper part and in the middle third of the panicle ripen first, while those at the base are the last.<\/p>\nThe harvest point tends to be reached when most of the grains in the upper and middle thirds are straw-colored or golden, with only a small proportion of greenish grains at the base. The husk should also be firm, with low resistance to mechanical threshing, but without being excessively fragile.<\/p>\nMoisture content is the main objective indicator for scheduling the harvest. The appropriate range should minimize mechanical damage and breakage, reduce the presence of green grains, and avoid excessive losses due to natural threshing.<\/p>\nAnother practical indicator is resistance to threshing. By holding the panicle and rubbing it lightly in the opposite direction to the arrangement of the spikelets, the detachment of many grains indicates advanced maturation. In this case, the risk of losses due to natural threshing and also due to impacts during combine harvester operation increases.<\/p>\nLodging also deserves attention. During maturation, the straw loses flexibility and the stalk becomes more susceptible to lodging, especially in the face of strong winds or excess water. When there is a higher risk of lodging, it may be necessary to harvest a little earlier, provided that the crop is still within an acceptable range of maturity.<\/p>\nThe decision regarding the timing of the harvest should not be made solely based on the crop's appearance from a distance. A systematic assessment helps identify differences in maturation within the plot. The first step is to walk in a zigzag pattern and collect panicles at different points. Borders should be avoided as the sole reference point, as they may exhibit a different maturation rate than the interior of the area.<\/p>\nNext, it is necessary to visually estimate the percentage of mature panicles. When about three-quarters or more of the panicles are completely covered in straw and the rest are in an advanced stage of yellowing, the crop tends to be close to the ideal point.\n<\/p>\n\n<\/div>\n\n<\/div>\nIt is also important to open some panicles and separate the grains from the upper, middle, and lower thirds. The evaluation should consider the husk color, the presence of shriveled or light grains, and the proportion of green grains in the lower part.<\/p>\nThe internal consistency of the grain is another useful indicator. To assess it, some grains can be manually husked and split in half. At physiological maturity, the interior ceases to be milky and becomes solid and mealy. Closer to harvest, the grain is completely filled and drier, without watery or very soft parts.<\/p>\nObserving the crop as a whole also helps determine the order in which the machines enter the field. A ready area tends to have a predominantly straw-like appearance. Very green patches may indicate unevenness and require that harvesting begin in the most advanced parts, leaving the green areas for a few days later.<\/p>\nBetween June and December, weather conditions can directly alter the irrigated rice harvest schedule. The proximity of cold fronts, excessive rain, and strong winds increases the risk of shattering, lodging, and operational difficulties. Waterlogged soil can also cause machinery to get stuck and increase the occurrence of stained grains.<\/p>\nWhen the crop is at the right stage and prolonged rain is forecast, bringing forward the harvest can be considered within acceptable limits to preserve quality.<\/p>\nThe availability of machinery and labor also needs to be factored into the planning. On large properties with only one harvester, staggering cultivars and planting dates helps prevent many plots from reaching harvest time simultaneously.<\/p>\nDuring the operation, priority may be given to plots with a higher risk of lodging, to shorter-cycle varieties, and to areas with higher added value, such as those intended for the production of certified seeds.<\/p>\nIn irrigated rice systems, managing the water depth in the final phase of the cycle is important to facilitate the work of the machinery and promote more uniform ripening.<\/p>\nThe gradual removal of water contributes to soil drying, improves machinery traffic, and reduces relative humidity within the canopy. This can also decrease the risk of ear diseases and spotted grains.<\/p>\nThe timing of drainage depends on the soil type, topography, and cultivar. In general, harvesting begins when the grains still have a relatively high moisture content, allowing them to reach the appropriate harvest stage. Adjustments should be made based on observed field conditions and weather forecasts.<\/p>\nExcessive harvesting can increase the proportion of green and immature grains, as well as raise the risk of low weight and lower milling yield. It can also lead to an increase in chalky and brittle grains after aggressive drying, in addition to potential commercial discounts related to quality.<\/p>\nOn the other hand, delaying the operation too much increases losses due to natural threshing and vulnerability to lodging. The crop is also more exposed to birds and inclement weather, while very dry grains can be more fragile and increase breakage during threshing. The goal is to find a maturity range that balances productivity, grain quality, and operational safety.<\/p>\nA practical strategy is to map the plots according to their stage of maturity and record the approximate date when each area reached physiological maturity. This monitoring allows you to determine which areas should be included in the harvest schedule first. When the crop is close to the cutting point, inspections should be more frequent, as the maturation process can progress rapidly, especially under hot and dry weather conditions.\n<\/p>\n\n<\/div>\nThe combine harvester's settings also need to match the grain stage. Forward speed, cylinder rotation, concave opening, and sieve adjustments should be adjusted according to the conditions encountered. Wetter grains tolerate impact better, while very dry grains break more easily. Therefore, threshing tests at the beginning of each plot's harvest help adjust the operation according to losses and the amount of broken grains.<\/p>\nDrying and storage capacity must also be considered before machinery enters the field. Harvesting large volumes of high-moisture grains without the capacity to dry them quickly can increase the risk of spoilage and loss of quality.<\/p>\nFurthermore, some practices help reduce losses during the final phase of the cycle. These include choosing cultivars with relatively uniform maturation, proper irrigation management, and monitoring for ear and grain diseases. Preventive maintenance of harvesters before the start of the harvest also reduces the risk of downtime during the critical period.<\/p>\nIn practice, the crop is close to the ideal harvest point when most of the panicles are straw-colored, the grains in the upper and middle thirds are ripe, and there are few green grains at the base.<\/p>\nThe interior of the grains should be solid, without milky parts, while the resistance to threshing should indicate that the grains detach relatively easily, but without excessive dropping in the face of small impacts. Soil and weather conditions also need to allow for the safe entry of machinery.<\/p>\nThe final decision should consider the reality of each property, the weather forecast, the risk of lodging, and the available capacity for harvesting and drying. Frequent monitoring of maturation in the field allows for adjusting the timing of harvesting each plot and reducing losses, preserving productivity and grain quality.<\/p>\n<\/p><\/div>\nTHE MM Cereais<\/strong> It works with the best rice grains on the market and also keeps you up-to-date on the latest news and analysis about agribusiness.\nDon't forget to follow our social networks.<\/em><\/h6>\nAccess News Source <\/a><\/p>","protected":false},"excerpt":{"rendered":"A matura\u00e7\u00e3o do arroz \u00e9 uma etapa decisiva para definir o momento da colheita e…<\/p>","protected":false},"author":1,"featured_media":27640,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[244,248,255,249,254,250,246,247,256,245,253,252,251],"class_list":["post-28094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arroz","tag-agrolink","tag-agrotoxicos","tag-artigos-tecnicos","tag-classificados","tag-colunistas","tag-compra","tag-cotacoes","tag-defensivos","tag-eventos","tag-noticias","tag-precos-agricolas","tag-previsao-do-tempo","tag-venda"],"_links":{"self":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/comments?post=28094"}],"version-history":[{"count":0,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media\/27640"}],"wp:attachment":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media?parent=28094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/categories?post=28094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/tags?post=28094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Rice maturation corresponds to the final stage of the cycle, when the grain completes its filling, progressively loses moisture, and acquires more stable physical and chemical characteristics.<\/p>\n
In practice, two stages are important: physiological maturity and harvest maturity. Physiological maturity occurs when the grain reaches its maximum dry matter accumulation. From this stage onwards, there is no weight gain in the grain, only a reduction in moisture.<\/p>\n
In rice, this stage can be identified by the formation of a black or darkened layer at the base of the grain, next to the pedicel. In the field, however, criteria such as panicle color and the percentage of mature grains are also used. Harvest maturity occurs when the grain moisture allows for mechanical processing with minimal losses and good quality of processing.<\/p>\n
In irrigated crops, the practical recommendation is to observe whether most of the grains in the panicles are already mature, with few green spikelets, while the plant has a predominantly straw-colored appearance.<\/p>\n
The color of the panicles and plants is one of the main visual indicators. As the crop matures, the panicles change from light green to straw-yellow, while leaves and stems progressively dry out.<\/p>\n
A crop nearing the ideal stage tends to have more than 80% of panicles with a straw color, without large areas of intense green in the canopy. The grains, however, do not all ripen at the same time. Typically, those located in the upper part and in the middle third of the panicle ripen first, while those at the base are the last.<\/p>\n
The harvest point tends to be reached when most of the grains in the upper and middle thirds are straw-colored or golden, with only a small proportion of greenish grains at the base. The husk should also be firm, with low resistance to mechanical threshing, but without being excessively fragile.<\/p>\n
Moisture content is the main objective indicator for scheduling the harvest. The appropriate range should minimize mechanical damage and breakage, reduce the presence of green grains, and avoid excessive losses due to natural threshing.<\/p>\n
Another practical indicator is resistance to threshing. By holding the panicle and rubbing it lightly in the opposite direction to the arrangement of the spikelets, the detachment of many grains indicates advanced maturation. In this case, the risk of losses due to natural threshing and also due to impacts during combine harvester operation increases.<\/p>\n
Lodging also deserves attention. During maturation, the straw loses flexibility and the stalk becomes more susceptible to lodging, especially in the face of strong winds or excess water. When there is a higher risk of lodging, it may be necessary to harvest a little earlier, provided that the crop is still within an acceptable range of maturity.<\/p>\n
The decision regarding the timing of the harvest should not be made solely based on the crop's appearance from a distance. A systematic assessment helps identify differences in maturation within the plot. The first step is to walk in a zigzag pattern and collect panicles at different points. Borders should be avoided as the sole reference point, as they may exhibit a different maturation rate than the interior of the area.<\/p>\n
Next, it is necessary to visually estimate the percentage of mature panicles. When about three-quarters or more of the panicles are completely covered in straw and the rest are in an advanced stage of yellowing, the crop tends to be close to the ideal point.\n<\/p>\n
It is also important to open some panicles and separate the grains from the upper, middle, and lower thirds. The evaluation should consider the husk color, the presence of shriveled or light grains, and the proportion of green grains in the lower part.<\/p>\n
The internal consistency of the grain is another useful indicator. To assess it, some grains can be manually husked and split in half. At physiological maturity, the interior ceases to be milky and becomes solid and mealy. Closer to harvest, the grain is completely filled and drier, without watery or very soft parts.<\/p>\n
Observing the crop as a whole also helps determine the order in which the machines enter the field. A ready area tends to have a predominantly straw-like appearance. Very green patches may indicate unevenness and require that harvesting begin in the most advanced parts, leaving the green areas for a few days later.<\/p>\n
Between June and December, weather conditions can directly alter the irrigated rice harvest schedule. The proximity of cold fronts, excessive rain, and strong winds increases the risk of shattering, lodging, and operational difficulties. Waterlogged soil can also cause machinery to get stuck and increase the occurrence of stained grains.<\/p>\n
When the crop is at the right stage and prolonged rain is forecast, bringing forward the harvest can be considered within acceptable limits to preserve quality.<\/p>\n
The availability of machinery and labor also needs to be factored into the planning. On large properties with only one harvester, staggering cultivars and planting dates helps prevent many plots from reaching harvest time simultaneously.<\/p>\n
During the operation, priority may be given to plots with a higher risk of lodging, to shorter-cycle varieties, and to areas with higher added value, such as those intended for the production of certified seeds.<\/p>\n
In irrigated rice systems, managing the water depth in the final phase of the cycle is important to facilitate the work of the machinery and promote more uniform ripening.<\/p>\n
The gradual removal of water contributes to soil drying, improves machinery traffic, and reduces relative humidity within the canopy. This can also decrease the risk of ear diseases and spotted grains.<\/p>\n
The timing of drainage depends on the soil type, topography, and cultivar. In general, harvesting begins when the grains still have a relatively high moisture content, allowing them to reach the appropriate harvest stage. Adjustments should be made based on observed field conditions and weather forecasts.<\/p>\n
Excessive harvesting can increase the proportion of green and immature grains, as well as raise the risk of low weight and lower milling yield. It can also lead to an increase in chalky and brittle grains after aggressive drying, in addition to potential commercial discounts related to quality.<\/p>\n
On the other hand, delaying the operation too much increases losses due to natural threshing and vulnerability to lodging. The crop is also more exposed to birds and inclement weather, while very dry grains can be more fragile and increase breakage during threshing. The goal is to find a maturity range that balances productivity, grain quality, and operational safety.<\/p>\n
A practical strategy is to map the plots according to their stage of maturity and record the approximate date when each area reached physiological maturity. This monitoring allows you to determine which areas should be included in the harvest schedule first. When the crop is close to the cutting point, inspections should be more frequent, as the maturation process can progress rapidly, especially under hot and dry weather conditions.\n<\/p>\n
The combine harvester's settings also need to match the grain stage. Forward speed, cylinder rotation, concave opening, and sieve adjustments should be adjusted according to the conditions encountered. Wetter grains tolerate impact better, while very dry grains break more easily. Therefore, threshing tests at the beginning of each plot's harvest help adjust the operation according to losses and the amount of broken grains.<\/p>\n
Drying and storage capacity must also be considered before machinery enters the field. Harvesting large volumes of high-moisture grains without the capacity to dry them quickly can increase the risk of spoilage and loss of quality.<\/p>\n
Furthermore, some practices help reduce losses during the final phase of the cycle. These include choosing cultivars with relatively uniform maturation, proper irrigation management, and monitoring for ear and grain diseases. Preventive maintenance of harvesters before the start of the harvest also reduces the risk of downtime during the critical period.<\/p>\n
In practice, the crop is close to the ideal harvest point when most of the panicles are straw-colored, the grains in the upper and middle thirds are ripe, and there are few green grains at the base.<\/p>\n
The interior of the grains should be solid, without milky parts, while the resistance to threshing should indicate that the grains detach relatively easily, but without excessive dropping in the face of small impacts. Soil and weather conditions also need to allow for the safe entry of machinery.<\/p>\n
The final decision should consider the reality of each property, the weather forecast, the risk of lodging, and the available capacity for harvesting and drying. Frequent monitoring of maturation in the field allows for adjusting the timing of harvesting each plot and reducing losses, preserving productivity and grain quality.<\/p>\n<\/p><\/div>\n
Access News Source <\/a><\/p>","protected":false},"excerpt":{"rendered":"A matura\u00e7\u00e3o do arroz \u00e9 uma etapa decisiva para definir o momento da colheita e…<\/p>","protected":false},"author":1,"featured_media":27640,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[244,248,255,249,254,250,246,247,256,245,253,252,251],"class_list":["post-28094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arroz","tag-agrolink","tag-agrotoxicos","tag-artigos-tecnicos","tag-classificados","tag-colunistas","tag-compra","tag-cotacoes","tag-defensivos","tag-eventos","tag-noticias","tag-precos-agricolas","tag-previsao-do-tempo","tag-venda"],"_links":{"self":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/comments?post=28094"}],"version-history":[{"count":0,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media\/27640"}],"wp:attachment":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media?parent=28094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/categories?post=28094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/tags?post=28094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
A matura\u00e7\u00e3o do arroz \u00e9 uma etapa decisiva para definir o momento da colheita e…<\/p>","protected":false},"author":1,"featured_media":27640,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[244,248,255,249,254,250,246,247,256,245,253,252,251],"class_list":["post-28094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arroz","tag-agrolink","tag-agrotoxicos","tag-artigos-tecnicos","tag-classificados","tag-colunistas","tag-compra","tag-cotacoes","tag-defensivos","tag-eventos","tag-noticias","tag-precos-agricolas","tag-previsao-do-tempo","tag-venda"],"_links":{"self":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/comments?post=28094"}],"version-history":[{"count":0,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/28094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media\/27640"}],"wp:attachment":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media?parent=28094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/categories?post=28094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/tags?post=28094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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<\/p>\n<\/p>\n