EVALUATION OF SOME MULTINUTRIENT FERTILIZERS FOR TOMATO AND SQUASH ROTATION AND SOIL HEALTH UNDER DIFFERENT IRRIGATION SYSTEMS.
Kh. H.
El-Hamdi
Soils Dept., Faculty of Agric., Mansoura Univ.
author
R. E.
Knany
Soils, Water and Environment Inst., Agric. Res. Center, Egypt
author
Lamyaa A.
Abd El-Rahman
Soils, Water and Environment Inst., Agric. Res. Center, Egypt
author
text
article
2011
eng
Two field experiments (tomato and squash) in rotation were conducted at Sakha Agricultural Research Station Farm, Kafr El-Sheikh Governorate, Egypt during the summer and the autumn seasons of 2008 and 2009 to evaluate the effects of some multinutrient fertilizers for long term cultivation under two irrigation systems on crop yield and soil quality. The experiments were carried out under wire proof green house conditions. Tomato (Lycopersicon esculentum L) seedlings under the local name of Alessa was planted . Two irrigation systems and nine fertilizer treatments were examined . Split plot design was used with four replicates. The main plots were assigned by two irrigation systems (surface furrow irrigation, and drip irrigation). The sub plots were randomly assigned by nine fertilizer treatments of :- 1-control (without fertilization), 2- recommended dose of N and P (200 kg N and 13.08 kg P fed-1), 3- recommended dose of P and K (13.08 kg P and 41.5 kg K fed.-1), 4- recommended dose of N and K, 5- multinutrients 20 – 20 – 20 +1% Mg + micro nutrients, 6- multinutrient 20 – 20 – 20 + 1% Mg, 7- multinutrient 20 – 20 – 20 NPK as compound fertilizer (200 kg fed.-1), 8- commercial multinutrient 20 – 20 – 20 NPK as mixed fertilizer and 9- recommended dose of N. P and K (as urea, superphosphat and potassium sulphate). Squash was transplanted on the same design without fertilization depending on the previous fertilizer residuals. The obtained results can be summarized as :- surface irrigation gave higher tomato fruit yield of 32178.3 kg fed-1, the highest dry fruit weight of 2413.37 kg fed-1, higher P %, P content of the fruits (0.257% and6.2 kg fed-1) respectively, higher values of K % in the shoot and fruits ( 0.9 and 2.7%) , NUE, PUE, KUE and the highest squash fruit yield of 10202.67 kg fed-1. Drip irrigation produced the highest N % in the shoot and fruits of 0.602 and 0.912 % respectively. Surface irrigation generally decreased available N, K in the soil after squash while available P was increased compared to the values before planting. The highest tomato fruit yield of 31105.2 kg fed-1, N% in tomato shoot of 0.677%, NUE155.5, PUE 814.0 and KUE 622.1 were obtained with T5. The highest K uptake 134.38, NUR% 27.42, PUR% 27.63 and KUR% 195.50 were obtained with T9.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
2
v.
4
no.
2011
393
406
https://jssae.journals.ekb.eg/article_55454_4081dbf6dea6b5290f4bdd86b243da9d.pdf
dx.doi.org/10.21608/jssae.2011.55454
EFFECT OF ALTERNATE FURROW IRRIGATION TECHNIQUE AND ANTIOXIDANTS SPRAYING ON CROP WATER PRODUCTIVITY IN THE ALLUVIAL SOIL OF NILE DELTA OF EGYPT
A. A.
Mosa
Soils Dept., Fac. Agric., Mans. Univ., Mansoura, Egypt
author
A. Y.
Ramadan
Vegetables Res. Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt
author
text
article
2011
eng
The main objective of the present study was to find out a simple on-farm irrigation strategy that might enable farmers to increase water productivity under furrow irrigation systems. Therefore, two field experiments were carried out during the two successive seasons of 2007 and 2008, at a private farm, Kaha District, Kalyoubia Governorate, to investigate the efficiency of two improved furrow irrigation techniques as compared with the conventional furrow irrigation system (CFI), which means irrigating all furrows.
The examined furrow irrigation techniques were: exchangeable alternate furrow irrigation (EAFI), which means that neighboring two furrows are alternatively watered, and fixed alternate furrow irrigation (FAFI), which means that fixed one of every two furrows is watered.
Two antioxidant substances; salicylic acid (in the form of Na-salicylate), and ascorbic acid were foliarly sprayed to find out their prospective effect on mitigating the moderate water stress, which could be happen with using alternate furrow irrigation techniques as compared with water spraying as the control treatment.
The used experimental design was split plot with three replicates. Furrow irrigation techniques were presented in the main treatments, and antioxidant substances were allocated in the sup treatments.
The obtained results showed that alternate furrow irrigation techniques saved substantial amounts of irrigation water, and EAFI was the superior. There was a significant increase in cabbage fresh yield with using of EAFI. However, a slight decrease was recorded in FAFI as compared with CFI. Crop water use efficiency in alternate furrow irrigation techniques was higher than those of CFI. Antioxidants spraying led to an increase in fresh weight yield and crop water use efficiency. Nitrogen concentration in cabbage was enhanced with alternate furrow irrigation techniques, and EAFI was more efficient in this concern. Meanwhile, these techniques were associated with a decrease in phosphorus and potassium concentrations in plant as compared with CFI. In addition, Antioxidants spraying stimulated the nutritional status of cabbage, and ascorbic acid was the superior. The remained nitrogen in soil was enhanced with alternate furrow irrigation techniques, although a slight increase in soil salinity was observed. In conclusion, it can be recommended that the use of EAFI technique is the most superior to maintain crop water use efficiency in the Egyptian Nile Delta, especially under water scarcity.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
2
v.
4
no.
2011
407
421
https://jssae.journals.ekb.eg/article_55455_19410bf702749a326e66a756d7fb0bb1.pdf
dx.doi.org/10.21608/jssae.2011.55455
DEVELOPMENT AND EVALUATION OF THE COMBINE HEADER TO SUIT HARVESTING SOYBEAN CROP
A. E.
Elyamani
Agric. Eng. Res. Inst. (AEnRI), ARC, Giza, Egypt.
author
R. R.
Aboushieshaa
Agric. Eng. Res. Inst. (AEnRI), ARC, Giza, Egypt.
author
M. A.
Basiouny
Agric. Eng. Res. Inst. (AEnRI), ARC, Giza, Egypt.
author
text
article
2011
eng
Experiments were carried out by using a new modified header modification made on CLAAS Dominator 68™ harvesting combine. This work done to minimize header losses for soybean harvesting and to trace the effects of combine forward speeds of 1.92, 2.25, 2.41 and 3.11km/h; reel speeds of 0.94, 1.06, 1.30m/s (17, 20 and 24rpm) and crop moisture content of 18, 15 and 12% while, area of plates of seed collection was kept constant at 4.5m² during experiments on productivity of the machine, losses rate of combine header, percentage of seed damage due to threshing process, proportion of total losses of combine, power required, cost analysis and criterion function cost. Surveys before modification at experiment limit indicated that, the rate of header losses were ranged from 4.6 to 11.9%. However, the rate of total losses were ranged from 6.3 to 16.5%. While, results after modification indicated that, the machine productivity was 1.735ton/fed. Also, the minimum header losses, rate of threshing damage and total losses were 1.6, 1.3 and 3.1%, respectively. On the other hand, the minimum values of power consumed and energy required were 67.4kW and 31.45kW.h/fed, respectively. In addition to, the minimum operating cost required was 96.8LE/fed while, the minimum criterion function cost was 375.7LE/fed.
Journal of Soil Sciences and Agricultural Engineering
Mansoura University, Faculty of Agriculture
2090-3685
2
v.
4
no.
2011
423
439
https://jssae.journals.ekb.eg/article_55457_5b35f6d34498db998b2c765559b37424.pdf
dx.doi.org/10.21608/jssae.2011.55457