Drill to till

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The ‘Single Till’ and the ‘Dual Till’ Approach to the Price Regulation of Airports

In October 2000 the Civil Aviation Authority (CAA) published a Position Paper on the airport quinquennial reviews 1. The paper confirmed the CAA's intention to " undertake a fundamental review of its approach to the economic regulation of designated airports " and reaffirmed its commitment to the criterion of economic efficiency in assessing trade-offs between its statutory objectives under s.3...

متن کامل

Optimizing Strip-Till and No-Till Systems for Corn

Recent developments in biofuel demand and the rapid adoption of modern transgenic hybrids are changing production systems towards more corn after corn, more intensive tillage, higher plant populations, and ever higher crop residue levels at harvest. Meeting society’s needs for food, feed, and fuel from grain corn, and in the future from corn stover, requires continued refinement of tillage syst...

متن کامل

technical evaluation of direct drill planters (no-till planters) used for wheat planting in khorasan-e razavi province

this study evaluated direct drilling planters used for wheat cultivation in khorasan-e razavi province. a randomized complete block design with three replications was used. the treatments were direct drilling of wheat plants into wheat residue using the following direct planters: (1) sfoggia (13-25), (2) baldan (spd3000), (3) tondar (spd 2500), (4) semeato (shm 11/13). the parameters measured w...

متن کامل

Performance Evaluation of Zero-Till Ferti-Seed Drill in Comparison to Conventional and Reduced Tillage Methods of Wheat Crop on the Same Day

Rice–wheat cropping system is very common in India. It contributes to over 70% of total food grain production in the country with an area of 12 M ha under this cropping system. However, it is estimated that under rice and wheat crops separately the area is 42.31 and 22.98 M ha respectively. Looking to the above facts a study at farmer’s field of Ambedkar Nagar district was under taken to evalua...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nature

سال: 1977

ISSN: 0028-0836,1476-4687

DOI: 10.1038/269751b0