The influence of planting dates on productivity of agronomic crops assumes pivotal
significance. Optimum planting date has remained unambiguously one of the most …

To evaluate the effect of different levels of NPK nutrition on some morpho-physiological
characteristics and seed yield of quinoa, a randomized complete block design experiment …

The effect of chemical nitrogen (N) and sulphur (S) fertilizers, as well as a growth regulator,
was studied on quantitative and qualitative traits of canola cv.'Hyola 401'as a second crop in …

In order to investigate the effect of chemical and biological nitrogen fertilizer on canola, a
field experiment was conducted as a split plot based on a randomized complete block …

Introduction Conservation tillage practices and the presence of crop residues on the soil
surface have a positive effect on crop yields by reducing the germination and establishment …

Introduction Conservation tillage practices and the presence of crop residues on the soil
surface have a positive effect on crop yields by reducing the germination and establishment …

Sustainable production is essential for ensuring food security of a growing population.
Despite having a high potential for paddy fields in the northern provinces of Iran …

Thanks to its palatability and high digestibility, chicory plays an effective role in increasing
domestic animals' products. In order to study the effect of sowing data and nitrogen fertilizer …

علف‌های هرزیکی از عوامل کاهش دهنده محصولات کشاورزی است خاکورزی حفاظتی و باقی گذاشتن
بقایای گیاهی بر سطح خاک موجب کاهش تبخیر و تعرق از سطح خاک و کنترل علف‌های هرز می گردد …‎

به‌منظور بررسی اثر سطوح مختلف کودهای نیتروژن، فسفر و پتاسیم بر صفات مورفولوژیک،
عملکرد و اجزای عملکرد گیاه باقلا، آزمایشی بهصورت فاکتوریل بر پایه طرح بلوکهای کامل …‎