الكفاءة الاقتصادية لاستخدام الأسمدة الكيماوية في إنتاج محصول التمور في محافظة الوادي الجديد

Abstract EN

This research aims to reach the optimal quantities of nitrogenous, phosphate and potassium fertilizers that achieve economic efficiency in the production of dates crop in the New Valley Governorate by estimating the surplus and deficit of fertilizer resources used in the production of the date crop, where the results indicated: With regard to estimating the actual and optimal quantities of agricultural resources used in the production of the date crop, the first holding category has reached, according to the constant return of capacity, the amount of wastage is estimated at about 15.9% of the volume of labor, and about 12.7% for automatic work, about 14.6% of municipal fertilizers, about 14.1% of phosphate fertilizers, about 13.6% of nitrogenous fertilizers, and about 41.5% of potassium fertilizers.

According to the concept of variable return of capacity, the amount of wastage amounted to about 9.6, 8.1, 5.6, 7, 7, 42.6 for human and mechanical work and municipal, phosphatic, nitrogenous and potassium fertilizers, respectively.

As for the second holding category, the size of the surplus or wastefulness was estimated at about 71 human workers, and about 242.7 hours, for automatic work, about 10.2 cubic meters for municipal fertilizers, about 181.8 kg for phosphate fertilizers, about 147 kg for nitrogenous fertilizers, about 37.3 kg for potassium fertilizers, and according to the concept of variable return on capacity, a surplus occurred in the use of all agricultural resources used.

These quantities were estimated at about 46, 264.1, 8.8, 153.4, 116.4, 26.1 for human and mechanical labor.

Manure, phosphatic, nitrogenous, and potassium fertilizers, and for the third holding category and according to the concept of constant return to capacity, there was excess or extravagance, as the size of the surplus amounted to about 120 workers, about 373.9 for automatic work, and about 9.7 for manure fertilizer, about 187.9 kg of phosphatic fertilizers, about 509 kg of nitrogen fertilizer, and about 12429 kg of potassium fertilizer, and according to the concept of variable yield of capacity, there was an extravagance or surplus in all production inputs from agricultural resources.

This extravagance was estimated at about 8.7%, 6.9%, 8.2%, 6.8%, 9%, 91% of the total consumed quantities of agricultural resources, respectively, and for the fourth holding category, and according to the concept of constant return on capacity,There was excessive or extravagance for the farmers of this holding category, as the size of the surplus amounted to about 200 workers for human work, about 511.8 hours for automated work, and about 9.8 cubic meters of manure fertilizer, and about 302.9 kg for phosphatic fertilizers, about 468.7 kg for nitrogen fertilizer, and about 214.2 kg for potassium fertilizer, According to the concept of variable return of capacity, there was an extravagance or surplus in all production inputs of agricultural resources.

This wastage was estimated at about 3.7%, 2.2%, 2.4%, 5.1%, 1.9%, 3.4% of the total consumed quantities of agricultural resources, respectively .

As for estimating the cost-efficiency of the resources used in the production of dates, the first holding category reached that, according to the constant return of capacity, a surplus or extravagance occurred, the percentage of the surplus was estimated at about 29.5% for human work, about 27.3% for automatic work, about 20.3% for phosphate fertilizer, about 13.4% for nitrogen fertilizer, and about 16.8% for potassium fertilizer, As for the variable return for capacity, the percentage of surplus or extravagance was estimated at about 22.2%, 19.3%, 12.1%, 11.4%, 9.2%, 34.8% for these resources used in order and for the second holding category, according to the constant return of capacity there was a surplus or extravagance of agricultural resources, with the exception of the phosphate and potassium fertilizer resource, the deficit ratio was estimated at 12.4% and 71.8% for these resources respectively, As for the variable return of capacity, there was a deficit in the same resources used.

The deficit percentage was estimated at about 4.7% and 28.6%, respectively, and for the third holding category, according to the constant return of capacity there was an extravagance in all production inputs, except for the nitrogen fertilizer supplier.

The deficit was estimated at 23.7% of the total quantity used in that holding category.

According to the variable yield concept, there was an excess or extravagance in all agricultural resources used in production, except for the nitrogen fertilizer component.

The size of the deficit was estimated at about 9.4% of the volume of the consumed quantity of nitrogenous fertilizers, As for the fourth holding category, according to the constant return of capacity, there was an excess of all the resources used in production, except for the nitrogen fertilizer resource, and the deficit was estimated at 19% of the volume of the quantity used in that category.

According to the variable yield concept, there was an excess in all agricultural resources used in production, except for the human labor resource, nitrogen and phosphate fertilizers, and the deficit ratio was estimated at about 6.2%, 27.2%, 3.3% for these resources, respectively.