Handpicking, threshing aur winnowing kya hain?

Mixture kya hai?

Jab do ya zyada padarth mil jaate hain, to mixture banta hai. Khet se aaye anaaj mein kankad aur bhoosa mila hota hai; aate mein chokar ho sakta hai; samudra ke paani mein namak ghula hota hai. Mixtures do wajah se alag karte hain:

• bekaar hissa hataane ke liye, jaise anaaj se kankad;
• do kaam ke hisse alag karne ke liye, jaise dahi se makkhan aur chhaach.

Tareeka is pe depend karta hai ki hisse kaise alag hain: size, rang, shape, wazan, ya ghulte hain ya nahi.

Handpicking

Book mein Malli aur Valli Haryana mein apni Nani ke ghar jaate hain aur dekhte hain ki rishtedaar anaaj se chhote kankad aur bhoosa haath se nikaal rahe hain, taaki anaaj pakaane laayak ho. Ye handpicking hai: mixture ka ek hissa haath se chunna, size, rang aur shape ke fark se.

Handpicking tab theek hai jab:

• hataane wale tukde kam maatra mein hon;
• wo aasaani se dikhein aur haath se chune ja sakein.

Tum bhi handpicking karte ho. Jab Malli pulao se saabut kaali mirch nikaal ke plate pe alag rakhta hai, wo handpicking hai.

Threshing

Khet mein Malli aur Valli kate gehun ke gatthar dekhte hain. Har sookhe danthal pe kai daane lage hain. Kisan danthal ko lakdi ke bade lathe pe peet kar daane alag karte hain. Danthal se daane alag karna threshing kehlata hai.

Winnowing

Threshing ke baad daanon mein halke bhoose ke dher mile hote hain. Haath se daane chunne mein din lag jaayenge. Pehle bhuni moongfali se try karo: unhe hatheliyon ke beech ragdo taaki chhilke utar jaayein, phir dheere se phoonk maaro. Halke chhilke ud jaate hain aur bhaari moongfali reh jaati hai. Phoonk ki hawa halke hisse ko bhaari hisse se alag karti hai.

Kisan bade paimaane pe yahi soop, yaani baans ki tokri, se karte hain. Oonche chabootre pe khada kisan thresh kiye daanon se bhara soop hawa ki disha mein jhukaata hai, taaki mixture dheere-dheere gire.

Hawa halke bhoose ko thodi door le jaati hai, jahan wo alag dher banata hai. Bhaari daane lagbhag seedhe neeche girte hain. Mixture ke bhaari aur halke hisson ko hawa ya phoonk se alag karna winnowing kehlata hai. Band kamre mein jahan hawa nahi, wahan pankha yahi kaam karta hai.

Aaj kai kisan threshers naam ki machines use karte hain, jo daanon ko danthal aur bhoose dono se alag karti hain, yaani threshing aur winnowing ek saath.

Ek ke baad ek tareeke

Gehun ki kataai ke baad danthal ki threshing se daane chhudaate hain, daanon ki winnowing se bhoosa hataate hain, aur ghar pe bache kankad handpick karte hain. Jab gehun pees ke aata banta hai, to chokar sieving se hatta hai, jiske baare mein padho sedimentation, decantation aur filtration wale page pe.

Socho

Thode murmure chana dal mein mil gaye. Handpicking kar sakte ho, par jaldi wala tareeka bhi hai: plate pe dheere se phoonk maaro, ya mixture ko phatko, aur halke murmure bhaari dal se door ud jaayenge.

Tareeka	Kya alag karta hai	Kyun kaam karta hai
Handpicking	Anaaj se kankad aur bhoosa	Alag size, rang ya shape; kam tukde
Threshing	Danthal se daane	Peetne se daane chhoot jaate hain
Winnowing	Daanon se bhoosa	Bhoosa daanon se bahut halka hai