Sementes pequenas normalmente apresentam mais perdas\u00a0que sementes maiores, ou seja, com sementes pequenas necessitase\u00a0de maior n\u00famero de sementes vi\u00e1veis por unidade de \u00e1rea para\u00a0se obter o mesmo n\u00famero de plantas vivas de esp\u00e9cies de sementes\u00a0maiores. De modo geral, estima-se que 10 plantas\/m2 a 20 plantas\/\u00a0m2 \u00e9 um bom n\u00famero para gram\u00edneas tropicais.<\/p>\n
Generalizando, plantas de sementes pequenas como o\u00a0tanz\u00e2nia n\u00e3o devem ser plantadas em profundidade, recomendando-\u00a0se plantio superficial, de at\u00e9 3 cm, com compacta\u00e7\u00e3o. O contato\u00a0solo\/semente \u00e9 muito importante para assegurar boa germina\u00e7\u00e3o e\u00a0sobreviv\u00eancia das pl\u00e2ntulas. Plantas de sementes maiores (marandu,\u00a0piat\u00e3) sobrevivem bem a um plantio mais profundo, de at\u00e9\u00a05 cm, e respondem \u00e0 compacta\u00e7\u00e3o ap\u00f3s o plantio.\u00a0Nota: o importante \u00e9 conhecer o valor cultural da semente utilizada e buscar as recomenda\u00e7\u00f5es\u00a0com um zootecnista, para ajustar a densidade e profundidade de plantio.\u00a0Na Tabela 1, tem-se a recomenda\u00e7\u00e3o de semeadura e profundidade\u00a0de plantio para algumas forrageiras.<\/p>\n
Tabela 1. Recomenda\u00e7\u00e3o de semeadura e profundidade de plantio para
\nforrageiras.<\/p>\n
Forrageira \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Taxa de\u00a0semeadura\u00a0(kg SPV\/ha) \u00a0 Profundidade\u00a0de plantio\u00a0(cm)
\nXara\u00e9s (Brachiaria brizantha cv. Xara\u00e9s) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4,5 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 3
\nMarandu (B. brizantha cv. Marandu) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4,0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4
\nPiat\u00e3 (B. brizantha cv. BR-Piat\u00e3) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4,0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a04
\nHumid\u00edcola (B. humidicola) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03,5 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03
\nDecumbens (B. decumbens cv. Basilisk) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03,5 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2
\nTanz\u00e2nia (Panicum maximum cv. Tanz\u00e2nia-1) \u00a0 \u00a0 \u00a03,0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03
\nMomba\u00e7a (P. maximum cv. Momba\u00e7a) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 3,0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 3
\nMassai (P. maximum x P. infestum cv. Massai) \u00a0 \u00a0 \u00a03,0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03<\/p>\n
SPV = sementes puras vi\u00e1veis.<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Sementes pequenas normalmente apresentam mais perdas\u00a0que sementes maiores, ou seja, com sementes pequenas necessitase\u00a0de maior n\u00famero de sementes vi\u00e1veis por unidade de \u00e1rea para\u00a0se obter o mesmo n\u00famero de plantas vivas de esp\u00e9cies de sementes\u00a0maiores. De modo geral, estima-se que 10 plantas\/m2 a 20 plantas\/\u00a0m2 \u00e9 um bom n\u00famero para gram\u00edneas tropicais. Generalizando, plantas de […]<\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[5],"tags":[118,153,48,152],"class_list":["post-312","post","type-post","status-publish","format-standard","hentry","category-pastagem","tag-cerrado","tag-densidade","tag-pastagem-2","tag-recomendacao"],"_links":{"self":[{"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/posts\/312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/comments?post=312"}],"version-history":[{"count":6,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/posts\/312\/revisions"}],"predecessor-version":[{"id":7299,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/posts\/312\/revisions\/7299"}],"wp:attachment":[{"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/media?parent=312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/categories?post=312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cloud.cnpgc.embrapa.br\/sac\/wp-json\/wp\/v2\/tags?post=312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}