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agricoltura

QuestionAnswer
E' un mezzo agricolo Trattore
Qual'è la prima operazione da fare in un campo che non è stato coltivato da molto tempo? Bonifica
Tecnica di distribuzione dell'acqua al terreno agrario Irrigazione
Attrezzo agrario inventato dai Sumeri Aratro
Scienza che studia la coltivazione razionale delle piante, la sistemazione e lo sfruttamento Agronomia
Dà al terreno buona compattezza e conserva l'umidità Argilla
Rende il terreno molto permeabile Sabbia
Strato del terreno ricco di humus attivo
Fa parte del settore primario Agricoltura
La sfruttano le piante per respirare Clorofilla
Macchine che hanno la funzione di eseguire i diversi lavori nei campi Operatrici
Viene compiuta dall'aratro rincalzatore Rincalzatura
Concime organico Letame
Le piante erbacee si riproducono per Seme
Piante che crescono con quelle utili Infestanti
Metodo che utilizza il fuoco per eliminare le piante infestanti Pirodiserbo
Spazi chiusi che proteggono le colture dal freddo Serre
Ridà i terreni le sostanze minerali tolte dalle precedenti coltivazioni Concimanzione
Può essere fatta tramite i semi o tramite altri organi della pianta Riproduzione
Strato superficiale della crosta terrestre Terreno
Created by: serenacasana
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